KMB systems, s.r.o.
559 Dr. M. Horákové, 460 06 Liberec 7, Czech Republic
telephon e + 42 0 48 5 1 3 0 3 1 4, fa x + 42 0 48 2 73 9 957
em a il: km b@ km b.cz, w ebs ite: w w w .km b.cz
Power Factor Controller
NOVAR 314 RS
F irm w a re v . 1 .1
Operating Manual
POWER FACTOR CONTROLLER
cos
IND.
T1 T2 T3 T4 T5 T6
A
CAP.
THD
Parameters
Manual
Feeding back
Alarm
Editable
1
2
8
3
4
25: steps’val
ues
1: target cos ϕ
26: f
i
xed steps
2: controlti
me i
nd.
28: qui
3: controlti
me cap.
ckstep no
29: q.steps’speed
12: CT -pri
mary
30: al
arm setti
ng
13: CT -secondary
40: al
arm state
14: reconnecti
on ti
me
15: vol
tage P-N /P-P
41: mi
n.cos ϕ
tchi
ng number
16: aut.connect.detect. 44: swi
20: aut.step recogni
ti
on 46: controlti
me state
P
12/2002
5
6
7
Al
arm states:
1: I<
2: I>
3: comp.error
4: U <
5: THD >
6: swi
tchi
ng number
8: feedi
ng back
9: step error
M
Novar 314 RS
K M B s y s te m s
CONTENTS
1 . D ESCR IP TION.................................................................. 4
1.1
B a s ic F u n c tio n s ....................................................................................................................................4
1.2
H is to ry o f V e rs io n s ...............................................................................................................................5
1.3
F ro n t P a n e l ............................................................................................................................................5
1.4
N um
1.4.1
1.4.2
1.4.3
e ric D is p la y ....................................................................................................................................5
In s tan tan e ou s M e as u re m e n t V alu e s ..............................................................................................5
C on trolle r P aram e te rs ....................................................................................................................7
T e s t an d E rror M e s s ag e s ...............................................................................................................8
1.5
In d ic a tio n L E D s .....................................................................................................................................8
1.5.1
O u tp u t State In d ic ation s .................................................................................................................8
1.5.2
T re n d In d ic ation ..............................................................................................................................9
1.5.2 .1 C on trol D e viation E valu ation ......................................................................................................9
1.5.3
In d ic a tio n o f M a n u a l M o d e .............................................................................................................9
1.5.4
In d ic ation of B ac k F e e d in g .............................................................................................................9
1.5.5
A larm In d ic ation ............................................................................................................................10
2 . INSTA L L A TION.............................................................. 1 1
2.1
M e c h a n ic a l...........................................................................................................................................11
2.2
C o n n e c tio n ..........................................................................................................................................11
2 .2 .1
P ow e r Su p p ly ...............................................................................................................................11
2 .2 .2
M e as u re m e n t V oltag e ..................................................................................................................12
2 .2 .3
M e as u re m e n t C u rre n t ..................................................................................................................12
2 .2 .4
T ran s is tor O u tp u ts ........................................................................................................................12
2 .2 .5
Re lay O u tp u ts ...............................................................................................................................12
2 .2 .6
E rror In d ic ation .............................................................................................................................12
2 .2 .7
Se c on d T ariff F u n c tion Se le c tion .................................................................................................13
2 .2 .8
C om m u n ic ation In te rfac e .............................................................................................................13
2 .2 .8.1 RS-2 32 C om m u n ic ation In te rfac e ............................................................................................13
2 .2 .8.2
RS-485 C om m u n ic ation In te rfac e ............................................................................................13
3 . P U TTING IN OP ER A TION ............................................. 1 5
3 .1
F irs t U s e ...............................................................................................................................................15
3 .2
A u to m a tic C o n n e c tio n D e te c tio n P ro c e s s .......................................................................................15
3 .3
A u to m a tic S e c tio n a l C u rre n t R e c o g n itio n P ro c e s s .........................................................................16
4. OP ER A TION................................................................... 1 8
4.1
C o n tro l P rin c ip le s ...............................................................................................................................18
2
Novar 314 RS
4 .2
K M B s y s te m s
S e tu p ....................................................................................................................................................1 8
4.2 .1
P aram e te r E d itin g .........................................................................................................................18
4.2 .1.1 E n ab le / D is ab le P aram e te r E d itin g .........................................................................................19
4.2 .2
P aram e te r 0 1/0 7 – T arg e t P ow e r F ac tor......................................................................................2 0
4.2 .3
P aram e te r 0 2 /0 8 – Re lay G rou p Re g u lation T im e w ith in U n d e rc om p e n s ation ............................2 0
4.2 .4
P aram e te r 0 3/0 9 – Re lay G rou p Re g u lation T im e w ith in O ve rc om p e n s ation ..............................2 0
4.2 .5
P aram e te r 0 6 – T ariff 2 O p e ration ...............................................................................................2 2
4.2 .6
P aram e te rs 12 ,13 – M e te rin g C u rre n t T ran s form e r Ratio............................................................2 2
4.2 .7
P aram e te r 14 – Re c on n e c tion D e lay T im e of Re lay G rou p .........................................................2 2
4.2 .8
P aram e te rs 15 ,16 – M e as u re m e n t V oltag e T y p e an d C on n e c tion ..............................................2 2
4.2 .8 .1 Se ttin g T y p e of C on n e c tion if M e as u rin g at P ow e r Su p p ly T ran s form e r’s O p p os ite Sid e s .....2 3
4.2 .9
P aram e te r 2 0 – A u tom atic Se c tion al C u rre n t Re c og n ition ...........................................................2 4
4.2 .10
P aram e te rs 2 1, 2 2 – Sw itc h in g P rog ram an d Sm alle s t C ap ac itor V alu e of Re lay G rou p (IMIN, or
C /k )
25
4.2 .11
P aram e te r 2 3, 2 4 – Nu m b e r of C ap ac itors an d C h ok e s of Re lay G rou p .....................................2 6
4.2 .12
P aram e te r 2 5 – C om p e n s ation Se c tion s ’ C u rre n ts ......................................................................2 6
4.2 .13
P aram e te r 2 6 – F ix e d Se c tion s ....................................................................................................2 7
4.2 .14
P aram e te r 2 7 – L im it P ow e r F ac tor for Re g u lation b y C h ok e ......................................................2 7
4.2 .15
P aram e te r 2 8 – Nu m b e r of C ap ac itors of T ran s is tor G rou p .........................................................2 8
4.2 .16
P aram e te r 2 9 – T ran s is tor G rou p C on trol Rate an d Re c on n e c tion D e lay T im e ..........................2 8
4.2 .17
P aram e te r 30 – A larm Se ttin g ......................................................................................................2 8
4.2 .17 .1
A larm In d ic ation F u n c tion ....................................................................................................2 8
4.2 .17 .2
A larm A c tu ation F u n c tion ....................................................................................................30
4.2 .18
P aram e te rs 31, 32 – C u rre n t T otal H arm on ic D is tortion L im it an d Nu m b e r of Sw itc h in g
O p e ration s L im it for A larm In d ic ation or A c tu ation .........................................................................................30
4.2 .19
P aram e te rs 33, 34, 35 – In s tru m e n t A d d re s s , C om m u n ic ation Rate an d C om m u n ic ation P rotoc ol31
4.2 .2 0
P aram e te r 40 – A larm Statu s .......................................................................................................31
4.2 .2 1
P aram e te rs 41, 42 , 43 – E x tre m e M ain s P aram e te rs Re c ord e d ..................................................31
4.2 .2 2
P aram e te r 44 – Nu m b e r of Re lay G rou p Se c tion C on n e c tion s an d D is c on n e c tion s ...................32
4.2 .2 3
P aram e te r 45 – T y p e of C on trolle r E rror......................................................................................32
4.2 .2 4
P aram e te r 46 – Re lay G rou p Re g u lation T im e ............................................................................32
4.2 .2 5
P aram e te r 47 – Nu m b e r of Re lay G rou p Se c tion Sw itc h -O n T im e .............................................32
4 .3
R e la y G ro u p S e c tio n V a lu e A c c u riz a tio n ..........................................................................................33
4 .4
F a u lty R e la y G ro u p S e c tio n In d ic a tio n a n d D is a b le m e n t ...............................................................33
4 .5
R e g u la tio n b y C h o k e ..........................................................................................................................34
4 .6
R e g u la tio n In te rru p tio n ......................................................................................................................35
4 .7
M a n u a l M o d e .......................................................................................................................................35
4 .8
M a n u a l In te rv e n tio n in R e g u la tio n P ro c e s s .....................................................................................36
4 .9
C o n tro lle r In itia lis a tio n .......................................................................................................................36
4 .1 0
S u m m a ry o f T e x t M e s s a g e s ...............................................................................................................37
5. W IR IN G E X A M P L E S .......................................................3 8
6 . T E C H N IC A L S P E C IF IC A T IO N S : ...................................4 1
7 . M A IN T E N A N C E , T R O U B L E S H O O T IN G .......................4 4
3
Novar 314 RS
K M B s y s te m s
1. D e s c rip tio n
1.1 Basi
cFunct
i
ons
Novar 314 RS reactive power controller is fully automatic instrument that allows optimum control of
reactive power compensation. It is fitted with six transistor outputs for thyristor switch control and with
eig ht relay outputs pro stand ard contactor connection.
T he instruments feature precise voltag e and current measurement circuits and the d ig ital processing
of values measured provid es hig h evaluation accuracy of b oth true root–mean–sq uare and power
factor values. T he instruments calculate fund amental harmonic component of active and reactive
current with F F T alg orithm. V oltag e fund amental harmonic component is calculated in an analog ous
fashion thus provid ing accurate measurement and control even in cond itions of d istortion b y hig her
harmonic components.
T he voltag e measurement circuit is isolated allowing connection of voltag e in the rang e from 10 0 to
6 9 0 V A C . T he current measurement input is a g eneral–purpose one for nominal value of a 1 A or 5 A
metering current transformer’s second ary wind ing . T he measurement inputs can b e connected to the
controller in any comb ination, that is any phase or line voltag e and any phase’s current.
T he instrument’s installation is fully automatic. T he controller automatically d etects b oth the
connection config uration and the value of each compensation section connected . E ntering these
parameters manually is also possib le.
C ontrol is provid ed in all four q uad rants. T ransistor output g roup control speed can b e set in rang e
from 1 to 5 control cycles per second . T he control speed of relay g roup d epend s on b oth control
d eviation value and its polariz ation (overcompensation / und ercompensation).
C onnecting and d isconnecting power factor capacitors is carried out in such a way that achieving the
optimum compensation cond ition is b y a sing le control intervention at minimum numb er of sections
connected . A t the same time, the instrument chooses relay sections with reg ard to their even load and
preferab ly connects those that have b een d isconnected for the long est time and the remanent charg e
of which is thus minimum.
W ithin the control process the instrument continually check s the relay compensation sections
connected to relay output g roup. If a section’s outag e or chang e in value is d etected , the section is
temporarily d isab led for reg ulation und er g iven setting . T he section temporarily d isab led is period ically
tested and enab led for reg ulation ag ain when possib le.
T he controllers ate d esig ned for systems with nominal voltag e freq uency 5 0 or 6 0 H z . V oltag e sig nal
d ominant fund amental harmonic component is evaluated continuously since voltag e is connected and
using this information the controller d etermines the nominal freq uency and ad justs its operation to it
automatically.
In measurement of current, harmonic component levels are evaluated of up to the 19 th ord er of
mag nitud e. T he total current harmonic d istortion, T H D , which can b e viewed on a d isplay, is calculated
from these measurements’ results while it is possib le to preset the T H D threshold level at which the
controller d isconnects all compensation sections thus preventing their d amag e. B esid es that, the most
ad verse T H D values, values of harmonic components selected and the minimum power factor values
are record ed into the instrument’s memory for sub seq uent analysis.
B esid es the power factor capacitors, it is possib le to connect power factor chok es (mains
d ecompensation). A ny output can b e set as fix ed .
T he second tariff input can b e used for switching b etween two controller setting s.
4
Novar 314 RS
K M B s y s te m s
An alarm relay output can be set to signal non-stand ard cond itions, such as und ercurrent, ov ercurrent,
measurement v oltage failure, h armonic d istortion preset th resh old ex ceed ed , ov ercompensation or
und ercompensation, section limit connection rate ex ceed ed , section outage or back feed ing cond ition.
T h e controller can be ord ered in a v ersion ex tend ed w ith galv anic-isolated R S -2 3 2 or R S -4 8 5
communication interface. All v alues measured can be monitored and th e controller’s parameters set
using a remote computer.
1.2 Hi
st
oryofVersi
ons
v ersion
1 .0
1 .1
d ate of release
0 6 /2 0 0 2
0 1 /2 0 0 3
note
- basic v ersion
- M od bus-R T U communication protocol implementation
- sw itch -on time of section monitoring function ad d ed
1.3 FrontPanel
T h e front panel consists of a numeric d isplay, ind ication L E D s and a control k eypad .
figure 1: fro n t p a n el
POWER FACTOR CONTROLLER
IND.
cos
CAP.
THD
T1 T2 T3 T4 T5 T6
A
Parameters
Manual
Feeding back
Alarm
Editable
1
2
8
3
4
25: steps’val
ues
1: target cos ϕ
26: fi
xed steps
2: controlti
me i
nd.
28: qui
3: controlti
me cap.
ckstep no
29: q.steps’speed
12: CT -pri
mary
30: al
arm setti
ng
13: CT -secondary
40: al
arm state
14: reconnecti
on ti
me
15: vol
tage P-N /P-P
41: mi
n.cos ϕ
tchi
ng num ber
16: aut.connect.detect. 44: swi
20: aut.step recogni
ti
on 46: controlti
m e state
P
5
6
7
Al
arm states:
1: I<
2: I>
3: com p.error
4: U <
5: THD >
6: swi
tchi
ng number
8: feedi
ng back
9: step error
M
1.4 Numeri
cDi
spl
ay
Information sh ow n on th e numeric d isplay can be d iv id ed into 3 main d ata groups:
• instantaneous mains v alues measured , such as pow er factor, current, current T H D , etc.
• controller parameters
• test and error messages
1.4.1 In s ta n ta n e o u s M e a s u re m e n t V a lu e s
T h e mod e of d isplaying instantaneous v alues is th e basic d isplay mod e w h ich th e controller enters on
pow er-up. If you sw itch to parameter d isplay mod e, you can get back to instantaneous v alue d isplay
mod e by pressing th e M button (measurement).
5
Novar 314 RS
K M B s y s te m s
The controller enters the insta nta neou s d isp la y m od e a u tom a tica lly in a b ou t 3 0 second s from the
m om ent y ou stop p ressing control k ey s (or in fiv e m inu tes if control tim e is d isp la y ed – see d escrip tion
of p a ra m eter 4 6 fu rther b elow ).
O ne of L E D s, COS , A , THD, is a lw a y s lit in the insta nta neou s d isp la y m od e. These L E D s id entify the
v a lu e d isp la y ed . Insta nta neou s v a lu es d isp la y ed a re org a niz ed in b ra nches – see fig u re 2.
fig u re 2: in s ta n ta n e o u s v a lu e d is p la y – s tru c tu re
m a in b ra n c h
C os
M
Ieff
TH D
M
I5 0 a
I5 0 r
3rd har
current fundamental
h armo nic b ranch
5 th har
7 th har
11th har
h ig h e r h a rm o n ic
b ra n c h
13 th har
17 th har
The m a in b ra nch conta ins the follow ing insta nta neou s v a lu es:
• COS – p ow er fa ctor. The v a lu e corresp ond s to insta nta neou s ra tio of a ctiv e com p onent to
tota l cu rrent fu nd a m enta l ha rm onic v a lu e in the m a ins. A p ositiv e v a lu e m ea ns ind u ctiv e
p ow er fa ctor, neg a tiv e m ea ns ca p a citiv e p ow er fa ctor.
• Ieff – cu rrent effectiv e v a lu e in the m a ins (inclu d ing hig her ha rm onic com p onents) in
a m p eres.
• THD – lev el of cu rrent tota l ha rm onic d istortion in the m a ins — this p ercenta l v a lu e is
ca lcu la ted from the m ea su red cu rv e u sing the F F T a lg orithm a nd it tells the ra tio of
content of cu rrent hig her ha rm onic com p onent u p to the 1 9 th ha rm onic to cu rrent
fu nd a m enta l ha rm onic lev el. This v a lu e is only show n if the tota l m a ins loa d is a t lea st 5
% of the nom ina l loa d (in a ccord a nce w ith m etering cu rrent tra nsform er’s p rim a ry sid e
nom ina l v a lu e).
Y ou ca n sw itch b etw een v a lu es d isp la y ed w ith the↑, ↓ b u ttons.
If the Ieff v a lu e is d isp la y ed , y ou ca n sw itch to the cu rrent fu nd a m enta l ha rm onic b ra nch b y p ressing
the M b u tton (m ea su rem ent). This b ra nch conta ins tw o v a lu es:
• I50a– a ctiv e com p onent of cu rrent fu nd a m enta l ha rm onic. This v a lu e in a m p eres is
ind ica ted on d isp la y w ith letter A (A for a ctiv e)
6
Novar 314 RS
K M B s y s te m s
• I50r – re a c tiv e c o m p o n e n t o f c u rre n t fu n d a m e n ta l h a rm o n ic in a m p e re s . D e p e n d in g o n its
c h a ra c te r it is in d ic a te d w ith le tte r L (in d u c tiv e ) o r C (c a p a c itiv e ).
N o te : n a m e s 1 5 0 a a n d 1 5 0 r a re d e riv e d fro m th e fre q u e n c y o f fu n d a m e n ta l h a rm o n ic c o m p o n e n t,
w h ic h is u s u a lly 5 0 H z . In s y s te m s w ith n o m in a l fre q u e n c y 6 0 H z , th e fu n d a m e n ta l h a rm o n ic
c o m p o n e n t h a s fre q u e n c y 6 0 H z , o f c o u rs e .
Y o u c a n a g a in m o v e u p a n d d o w n th e b ra n c h u s in g th e ↑, ↓ b u tto n s . T o g e t b a c k to th e m a in b ra n c h
o f in s ta n ta n e o u s v a lu e s p re s s b u tto n M.
Y o u c a n s w itc h to th e h ig h e r h a rm o n ic b ra n c h w h ile a T H D v a lu e is s h o w n b y p re s s in g b u tto n M. A fte r
p re s s in g th e b u tto n , th e h a rm o n ic ’s n u m b e r s h o w s fo r a m o m e n t a n d th e n th e v a lu e o f th is h a rm o n ic
a s p e rc e n ta g e o f th e fu n d a m e n ta l h a rm o n ic is d is p la y e d . T h e v a lu e is o n ly d is p la y e d if th e to ta l lo a d in
th e m a in s re a c h e s a t le a s t 5 % o f th e n o m in a l lo a d (in a c c o rd a n c e w ith m e te rin g c u rre n t tra n s fo rm e r’s
p rim a ry s id e n o m in a l v a lu e ).
Y o u c a n s w itc h b e tw e e n a ll s e le c te d h a rm o n ic c o m p o n e n ts , 3rd, 5 th , 7 th , 1 1 th , 1 3th , a n d 1 7 th , b y p re s s in g
th e ↑, ↓ . T h e s e h a rm o n ic c o m p o n e n ts w e re s e le c te d s in c e th e y re p re s e n t th e m o s t u s u a l c a s e s o f
d is to rtio n a n d th e ir v a lu e s a re u s u a lly th e h ig h e s t w h e n c o m p a re d w ith th e o th e rs . T o g e t b a c k to th e
m a in b ra n c h o f in s ta n ta n e o u s v a lu e s p re s s b u tto n M a g a in .
1.4.2 C o n tro lle r P a ra m e te rs
Y o u c a n v ie w c o n tro lle r p a ra m e te rs b y p re s s in g th e P b u tto n (p a ra m e te rs ). F irs t th e p a ra m e te r
n u m b e r s h o w s m o m e n ta rily a n d th e n its v a lu e d o e s . T h e p a ra m e te r n u m b e r fla s h e s m o m e n ta rily
e v e ry fiv e s e c o n d s fo r b e tte r o rie n ta tio n .
T h e Paramet
ersL E D is lit in th e p a ra m e te r d is p la y m o d e .
T h e p a ra m e te rs c a n b e d iv id e d in to th re e m a in g ro u p s :
• P a ra m e te rs d e te rm in in g c o n tro lle r fu n c tio n s . T h e s e p a ra m e te rs c a n b e s e t to d ire c t th e
re g u la tio n p ro c e s s . T h e re a re p o w e r fa c to r re q u ire d , re g u la tio n p e rio d , re c o n n e c tio n d e la y
tim e , e tc .
• P a ra m e te rs in d ic a tin g c o n tro lle r’s c u rre n t s ta te . T h is is a c u rre n t s ta te o f a la rm (p a ra m e te r
4 0 ), e rro r s ta te (p a ra m e te r 4 5 ), a n d re g u la tio n tim e s ta te (p a ra m e te r 4 6 ). T h e s e
p a ra m e te rs ’ v a lu e s a re s e t b y th e c o n tro lle r a n d th e y a re u s e d to id e n tify n o n s ta n d a rd o r
e rro r c o n d itio n s c lo s e ly a n d m o n ito r p ro g re s s o f th e re g u la tio n p ro c e s s in d e ta il.
• P a ra m e te rs o f m a in s a n d c o n tro lle r re c o rd e d in th e p ro c e s s o f re g u la tio n . T h e s e a re
e x tre m e v a lu e s m e a s u re d in th e m a in s (m in im u m p o w e r fa c to r, m a x im u m T H D a n d
c u rre n t h a rm o n ic le v e ls ) o n th e o n e h a n d a n d n u m b e r o f c o n n e c tio n s o f e a c h
c o m p e n s a tio n s e c tio n s o n th e o th e r h a n d . T h e s e v a lu e s a re s e t b y th e c o n tro lle r a n d th e
o p e ra to r c a n o n ly re s e t th e m .
T h e p a ra m e te rs a re o rg a n iz e d b y o rd in a l n u m b e r in th e m a in b ra n c h – s e e fig u re 3. S o m e o f th e
p a ra m e te rs (p a ra m e te r 2 5 – s e c tio n a l c u rre n t, 2 6 – fix e d s e c tio n s , 30 – a la rm s e ttin g , 4 0 – s ta te o f
a la rm , 4 3 – m a x im u m h a rm o n ic v a lu e s , 4 4 – n u m b e r o f s e c tio n s c o n n e c te d ) a re lo c a te d o n s id e
b ra n c h e s fo r e a s ie r n a v ig a tio n . Y o u c a n s w itc h to a s id e b ra n c h w ith s e le c te d p a ra m e te rs b y p re s s in g
b u tto n P (p a ra m e te rs ) a n d s w itc h b a c k to th e m a in b ra n c h in th e s a m e w a y . S id e b ra n c h p a ra m e te r
d is p la y e d c a n b e id e n tifie d fro m a d a s h b e tw e e n th e p a ra m e te r n u m b e r a n d v a lu e . F o r e x a m p le : in th e
m a in b ra n c h , w h ile s h o w in g p a ra m e te r 2 6 (fix e d s e c tio n s ), y o u w ill s e 01 C (s e c tio n 1 is re g u la tin g
c a p a c itiv e ); if y o u w a n t to d is p la y c o n d itio n s o f th e o th e r s e c tio n s , y o u n e e d to s w itc h d is p la y to th e
s id e b ra n c h b y p re s s in g b u tto n P; th e d is p la y w ill c h a n g e to 01–
01–C a n d n o w y o u c a n m o v e u p a n d
d o w n th ro u g h a ll s e c tio n s ’ v a lu e s o n th e s id e b ra n c h . P re s s in g b u tto n P a g a in re tu rn s d is p la y to th e
m a in b ra n c h (th e d a s h d is a p p e a rs ).
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Novar 314 RS
K M B s y s te m s
figure 3: p a ra m eter d is p la y – s truc ture
P-0 1
P-0 2
s id e b ra n c h
P-0 3
0 1 -C
P
P-2 5
m a in b ra n c h
1 4 -C
P-x x
When v iew in g p a ra m eters , the Editable L E D in d ic a tes if the p a ra m eter b ein g d is p la y ed c a n b e ed ited
— if it is lit, the p a ra m eter v a lu e c a n b e c ha n g ed ; if it is d a rk , the p a ra m eter v a lu e c a n n o t b e c ha n g ed
— either a p a ra m eter c o m p letely lo c k ed fo r c ha n g es b y o p era to r (s u c h a s p a ra m eter 4 0 – s ta te o f
a la rm ) is d is p la y ed o r the ed it m o d e is p ro tec ted b y p a s s w o rd .
P res s in g b u tto n M (m ea s u rem en t) retu rn s to the in s ta n ta n eo u s v a lu e d is p la y m o d e. T he c o n tro ller
g ets b a c k to this m o d e a u to m a tic a lly in a b o u t 3 0 s ec o n d s fro m the la s t p res s o f b u tto n .
E x c ep tio n : In the Manual m o d e the p a ra m eter v a lu es c a n n o t b e v iew ed . In s ta n ta n eo u s o u tp u t v a lu es
a re d is p la y ed o n p res s in g b u tto n P (p a ra m eters ) — s ee d es c rip tio n fu rther b elo w .
1.4.3 T e s t a n d E rro r M e s s a g e s
In the in s ta n ta n eo u s v a lu e d is p la y m o d e a tes t o r erro r m es s a g e p o p s u p in p la c e o f a n in s ta n ta n eo u s
p o w er fa c to r v a lu e in s o m e s itu a tio n s . E a c h m es s a g e a re d es c rib ed fu rther b elo w in m o re d eta il. In
thes e s itu a tio n s , w hen the v a lu e s ho w n d o es n o t rep res en t in s ta n ta n eo u s p o w er fa c to r, the COSL E D
fla s hes .
1.5 I
ndi
cat
i
onLEDs
B es id es the n u m eric d is p la y a n d a d ja c en t L E D s , COS, A , THD , Parametersa n d Editable, the fro n t
p a n el ha s s o m e m o re in d ic a tio n L E D s .
1.5 .1 O u tp u t S ta te In d ic a tio n s
T he a rra y o f L E D s a t the to p rig ht p a rt o f the fro n t p a n el s ho w the c u rren t s ta te o f tra n s is to r o u tp u t
g ro u p ( T 1 thro u g h T 6 ) a n d rela y o u tp u t g ro u p ( 1 thro u g h 8 ). If lit they in d ic a te s w itc hed tra n s is to rs
o r c lo s ed rela y c o n ta c ts o f c o rres p o n d in g o u tp u t .
If a L E D is fla s hin g , it m ea n s the c o n tro ller w a n ts to s w itc h o n the o u tp u t, b u t it ha s to w a it fo r the
d ela y tim e to ela p s e. T he c o rres p o n d in g o u tp u t is o p en a n d it w ill b e c lo s ed a s s o o n a s the
rec o n n ec tio n d ela y tim e ha s ela p s ed .
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Novar 314 RS
K M B s y s te m s
An exception is the power-u p d ispla y test to check correct opera tion of a ll d ispla y elem ents. In this test
the d ispla y shows TEST a nd a ll ind ica tion L E D s g o on a nd off one b y one. All ou tpu t tra nsistors a nd
rela y s sta y open while the test is ru nning .
1.5.2 T re n d In d ic a tio n
If a power fa ctor a t m a ins cha ng es in the wa y it ca nnot b e im m ed ia telly com pensa ted with sections of
tra nsistor ou tpu t g rou p, a d ev ia tion b etween a ctu a l a nd ta rg et rea ctiv e power tha t correspond s to
preset ta rg et power fa ctor will occu r. T he trend L E D s show the m a g nitu d e of the d ev ia tion.
If the d ev ia tion is sm a ller tha n a ha lf of the rea ctiv e power v a lu e of the smallest capacitor
con n ected to relay ou tpu t g rou p, b oth L E D s a re d a rk . If the d ev ia tion is g rea ter tha n a ha lf of, b u t
sm a ller tha n, the rea ctiv e power v a lu e of the sm a llest ca pa citor of rela y g rou p, the correspond ing L E D
fla shes — if la g g ing (u nd ercom pensa tion), the I
ND L E D fla shes; if lea d ing (ov ercom pensa tion), the
CAPL E D fla shes. If the d ev ia tion exceed s the v a lu e of the sm a llest ca pa citor of rela y g rou p, the
correspond ing L E D is perm a nently lit.
E xceptions to these L E D s’ m ea ning s a re the following situ a tions:
• m ea su rem ent U a nd I m ethod of connection is not d efined (pa ra m eter 1 6 )
• process of a u tom a tic connection d etection is in prog ress
• process of a u tom a tic d etection of sections’ cu rrents is in prog ress
If the m ethod of connection is not d efined , b oth L E D s fla sh; they a re d a rk in the other two situ a tions.
1.5.2.1 Cont
rolDevi
at
i
onEval
uat
i
on
T he controller seek s a n optim a l sta te, a t which the ta rg et power fa ctor is rea ched a nd a pproxim a telly
one ha lf of tra nsistor g rou p com pensa tion ca pa city is switched on. F a st rea ction of the controller in
ca se of a ctu a l power fa ctor cha ng e is possib le a t this sta te.
C onseq u ently a ctu a l sta te of tra nsistor ou tpu t g rou p is ta k en into a ccou nt when ev a lu a ting control
d ev ia tion. T herefore there ca n occu r ev en a sta te, when a ctu a l power fa ctor is eq u a l to ta rg et v a lu e in
spite of the trend L E D s ind ica te d ev ia tion. In this ca se the d ev ia tion of optim a l tra nsistor g rou p
config u ra tion is ind ica ted , not control one.
1.5.3 I
ndi
cat
i
onofManualMode
F la shing ManualL E D ind ica tes tha t the controller is in the m a nu a l m od e. T he controller’s reg u la ting
fu nction is d isa b led .
If this L E D is d a rk a nd d ispla y is in the Measurementm od e (tha t is the Paramet
ersL E D is d a rk ), the
controller is in its sta nd a rd reg u la ting m od e or it is ca rry ing ou t a u tom a tic connection d etection or
a u tom a tic d etection of ou tpu t cu rrents.
1.5.4 In d ic a tio n o f B a c k F e e d in g
If the controller k nows of the m ethod of connection (m ea su rem ent v olta g e a nd cu rrent), tha t is if the
process of a u tom a tic connection d etection ha s b een com pleted su ccessfu lly or the m ethod of
connection ha s b een entered m a nu a lly , the Feedi
ngBackL E D ind ica tes the power tra nsm ission
d irection. If it is d a rk , the power is flowing from the a ssu m ed power su pply to the a pplia nce. If the L E D
is fla shing , the power is flowing in the opposite d irection.
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Novar 314 RS
K M B s y s te m s
1.5.5 A la rm In d ic a tio n
The controller features a signaling Alarm relay . This relay ’s op eration can b e set as d escrib ed further
b elow . The Alarm L E D ind icates this relay ’s cond ition, that is if the Alarm relay’s output contact is
closed , th e L E D flash es.
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Novar 314 RS
K M B s y s te m s
2. In s ta lla tio n
2.1 Mechani
cal
The instrument is built in a plastic box to be mounted in a switchboard panel. The installation opening
dimensions are to be 1 3 8 x 1 3 8 mm. The instrument’s position is fixed through enclosed lock s.
2.2 Connect
i
on
To connect the controller there are connectors with screw-on terminals in the back wall. C onfiguration
of signals on these connectors is illustrated in figure 4.
E xamples of controller connections are shown in a separate chapter.
figure 4: N o v a r-3 1 4 R S c o n tro ller – c o n n ec to rs
NOVAR 314 RS 6/8/232 485
Serial/ vers.:
/
Product. date:
/
230 115 VAC,50/60Hz Pwr.: 10VA
IP 4X M ade in Czech Republic
1
2
3
4
5
6
7
8
9
10 11
12 13 14
ALARM
k
L1
L2
L3
N
SUPPLY
5A
(1A)
l
L1 N/L
L1
max.
10A
N/L
L1
N/L
100÷690 VAC
max. 6A
Rx Tx GND
RS-232/485
+U A B GND
2 TARIFF
n d
max. 6A
LOAD
M axim cross section area of connection wires is 1 .5 sq uare millimeters.
2.2.1 P o w e r S u p p ly
The controller req uires supply v oltage at nominal v alue 2 3 0 or 1 1 5 V A C (according the dev ice ty pe),
5 0 /6 0 H z , for its operation while the power req uirement is maximum 1 0 V A . The supply v oltage
connects to terminals 3 (L1) and 4 (N/
L). C ontroller’s power supply is one-pole protected with a T0 .1 L
or T0 .2 L fuse, repectiv elly .
P ower supply terminals 3 a (L1) and 4 (N/
L) are internally connected to terminals 5 (L1) and 6 (N/
L)
which can be utiliz ed for connecting the power supply v oltage to measurement v oltage input (terminals
7 – L1 and 9 – N/
L).
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Novar 314 RS
K M B s y s te m s
Power supply terminal 3 (L1) is internally c onnec ted to th e c ommon pole of output relays. It is
nec essary to d imension th e power supply protec tion c onsid ering output c irc uit b reak ers’ power as
well.
S inc e th e instrument d oes not h av e its own power switc h , you must inc lud e a d isc onnec ting d ev ic e in
th e power supply c irc uit (switc h — see installation d iag ram). It must b e loc ated rig h t at th e instrument
and easily ac c essib le b y th e operator. T h e d isc onnec ting d ev ic e must b e mark ed as suc h . A c irc uit
b reak er for nominal c urrent of 1 0 amp mak es a suitab le d isc onnec ting d ev ic e, its func tion and
positions, h owev er, must b e c learly mark ed (symb ols “0 ” and “I” in ac c ord anc e with E N 6 1 0 1 0 –1 ).
2.2.2 M e a s u re m e n t V o lta g e
T h e c ontroller features a g eneral-purpose, g alv anic ally isolated v oltag e measurement input. It allows
to c onnec t measurement v oltag e in th e rang e of nominal v alues from 1 0 0 to 6 9 0 V A C of eith er ph ase
or line v oltag e. In b asic c onnec tion ph ase L 1 g oes to terminal L1 (7 ) and neutral wire to terminal L2/
N
(9 ). T h e v oltag e sig nal (or d ominant h armonic c omponent) nominal freq uenc y c an b e 5 0 or 6 0 H z .
T h e measurement v oltag e must b e protec ted ex ternally. If th e measurement v oltag e is id entic al with
power supply v oltag e, th ey c an sh are a c irc uit b reak er. O th erwise eac h v oltag e b ranc h must b e
protec ted with fuses or c irc uit b reak ers of nominal v alue 1 to 6 A .
2.2.3 M e a s u re m e n t C u rre n t
M etering c urrent transformer outputs c onnec t to terminals 1 (k) and 2 (l). A metering c urrent
transformer of nominal output c urrent 5 or 1 A c an b e used – th e metering c urrent transformer’s
nominal sec ond ary wind ing c urrent v alue must b e entered wh en setting up th e instrument for its
proper operation (parameter 1 3 – see furth er b elow). T h e c onnec tor features a sc rew loc k to prev ent
ac c id ental pull-out.
2.2.4 T ra n s is to r O u tp u ts
T h e c ontroller is eq uipped with 6 N PN -type transistors T 1 ÷ T 6 . T h eir open c ollec tors are c onnec ted to
terminals 1 8 ÷ 2 3. E mitters are c onnec ted tog eth er to terminal 1 7 .
It is supposed input optoc ouplers of th yristor switc h es will b e c onnec ted ov er limiting resistors to th e
outputs. M ax imum rating s of 30 V D C and 5 0 miliamps c orrespond s th is purpose.
A ll th e transistor output g roup is g alv anic ally isolated from oth er c irc uits of th e c ontroller. T h e outputs
sh ould b e supplied from th yristor switc h es’ c ontrol c irc uits or aux iliary power supply of 1 0 ÷ 30 v oltag e
rang e, protec ted b y of 0 . 3 ÷ 0 .5 A rated fuse. A minus-pole must b e c onnec ted to c ommon terminal
1 7 ( se ex ample wiring d iag ram in separate c h apter ).
2.2.5 R e la y O u tp u ts
T h e instrument h as 8 output relays no. 1 ÷ 8 . T h e relays’ c ontac ts g o to terminals 2 7 th roug h 34 .
R elays’ c ommon c ontac ts are internally c onnec ted to power supply terminal 3 (L1) — wh en an output
relay c ontac t c loses, power supply v oltag e appears at th e c orrespond ing output terminal.
T h e relays’ output c ontac ts are wired with v aristors. T h ey c an b e load ed with c urrent 4 A at 2 5 0 V A C .
In installation th ere may b e a need to test func tion of eac h reg ulation sec tion b y manual c onnec tion
and d isc onnec tion — th is c an b e d one in th e Manual mod e or using manual intervention in regulation
p roc es s (see furth er b elow).
2.2.6 E rro r In d ic a tio n
T h e instrument h as an aux iliary A larm relay to ind ic ate nonstand ard c ond itions. T h is relay’s c ontac t
g oes to terminals 2 5 and 2 6 . It c an b e load ed with c urrent 4 A at 2 5 0 V A C .
12
Novar 314 RS
K M B s y s te m s
2.2.7 S e c o n d T a riff F u n c tio n S e le c tio n
In some situations it may be suitable to operate the controller with two different settings, for example
depending on load characteristics in different daily or week ly z ones. T o select the setting desired,
there is the second tariff input.
T he input is connected to terminal 11. It is activ ated by connecting v oltage of 10 0 ÷ 27 0 V A C (
referenced to the supply terminal 4 , N/L ). Impedance of the input is about 20 0 k O hm.
W hen no v oltage is applied to the input, the controller operates with the basic tariff setting, when
appropriate v oltage is applied (if the second tariff function is enabled – see further below), it operates
with the second tariff setting.
2.2.8 C o m m u n ic a tio n In te rfa c e
T he controllers can be eq uipped with galv anically isolated communication interface in compliance with
R S -23 2 or R S -4 8 5 standard for remote setting and regulation process monitoring.
2.2.8.1 RS-232 Communi
cat
i
onI
nt
erf
ace
T he communication link uses an additional four-pole connector on the rear panel (terminals 14 , 15 ,
16 ). T he signals are assigned as shown in table 1.
table 1: lo c al c o m m u n ic atio n lin e s ig n al c o n fig u ratio n
signal
terminal
R xD , receiv e data
14
T xD , transmit data
G N D /C , communication line ground
15
16
T he communication interface complies with C C IT T V .28 (R S -23 2) recommendations, that is ± 12 V
with minimum internal impedance load 3 k Ω . S ignals in accordance with C C IT T V .24 are used, that
10 2 (common wire), 10 3 (transmission data) and 10 4 (reception data).
T he interface can be used to connect one controller to a remote computer. C ommunication cable
maximum length is about 3 0 meters (shielded cable, such as 3 x A W G 24 , recommended).
2.2.8.2 RS-485Communi
cat
i
onI
nt
erf
ace
S ignal-to-pin configuration for R S -4 8 5 type line is shown in table 2.
table 2: lo c al c o m m u n ic atio n lin e s ig n al c o n fig u ratio n
signal
TR
D ATA A
D ATA B
G N D /C
terminal
13
14
15
16
T he interface allows connecting up to 3 2 instruments at a distance up to about 1 k ilometer.
R ecommended cable is shielded twisted metallic double pair.
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Novar 314 RS
K M B s y s te m s
RS-4 8 5 lin e re q u ire s im p e d a n c e te rm in a tio n o f th e fin a l n o d e s b y in s ta llin g te rm in a tin g re s is to rs fo r
c o m m u n ic a tio n d is ta n c e s o f a fe w te n s o f m e te rs a n d lo n g e r. T e rm in a tin g re s is to rs m a tc h in g th e
c a b le ’s w a v e im p e d a n c e a re c o n n e c te d b e tw e e n te rm in a ls 1 4 a n d 1 5 (D A T A A a n d D A T A B ). T h e
in s tru m e n t h a s b u ilt-in te rm in a tin g re s is to r o f 3 3 0 o h m s . It is c o n n e c te d b e tw e e n D A T A B -s ig n a l
(te rm in a l 1 5 ) a n d T R-te rm in a l (1 3 ) in s id e th e in s tru m e n t. T o in s ta ll th e re s is to r, s im p ly c o n n e c t
te rm in a ls D A T A A (1 4 ) a n d T R (1 3 ) w ith e a c h o th e r.
If th e c o m m u n ic a tio n c a b le is h u n d re d s o f m e te rs lo n g o r in e n v iro n m e n t w ith e le c tro m a g n e tic n o is e it
is s u ita b le to u s e a s h ie ld e d c a b le . T h e s h ie ld in g c o n n e c ts to te rm in a l 1 6 (G N D /C ) a n d to th e P E
(p ro te c tio n e a rth ) w ire a t o n e e n d o f th e c a b le .
14
Novar 314 RS
K M B s y s te m s
3. P u ttin g in O p e ra tio n
3.1 Fi
rstUse
The controller comes preset to default values as shown in tab le 3.
O n power-up a display test runs first. The display momentarily shows
• ty pe of controller (e.g . N314 )
• firmware version (e.g . 1.
1 )
• ty pe of measurement voltag e set ( U=PN or U=PP )
• current metering transformer secondary winding nominal value set ( I
=5A or I
=1A )
• numb er of transistor outputs used (for ex ample T=3 )
If the measurement voltag e connection is correct and the measurement current is sufficient (that is the
current metering transformer current is hig her than 0 .0 1 A ), the automatic connection detection
process starts.
If no measurement voltag e is detected, U=0 will flash on the display , if too low measurement
=0 will.
current is detected, I
3.2 Aut
omat
i
cConnect
i
onDet
ect
i
onProcess
The controller’s default measurement voltag e and current connection parameters are set as follows:
• ty pe of measurement voltag e set to phase voltag e (parameter 1 5 )
• method of connection of U and I not defined (parameter 1 6 )
If the method of connection is not defined, the controller can not evaluate instantaneous power factor
and this condition is indicated b y b oth trend L E D s flashing simultaneously . In such a case the
controller carries out automatic connection detection.
F or the controller to b e ab le to carry out this process of automatic connection detection, the following
conditions must b e met:
• controller operation is not disab led (i.e. the Manual L E D is dark )
• controller is in reg ulation mode, i.e. the numeric display mode is Measurementand the
Paramet
ersL E D is dark
• measurement voltag e is connected
• measurement current is sufficient
If meeting these conditions, the controller starts the automatic connection detection process.
The process may have up to seven steps. The controller mak es four measuring attempts in each step
in which it consecutively connects and disconnects four sections. F or this purpose it prefers sections
of transistor g roup. If the nub er of used transistor outputs ( parameter 2 8 ) is preset to value smaller
then 4 , it will use sections connected to relay g roup as well.
It at the same time assumes that power factor capacitors are connected to at least two of the sections
(no power factor chok es may b e connected to transistor g roup outputs and to outputs 1 throug h 4 of
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Novar 314 RS
K M B s y s te m s
relay group). The two following messages are shown one after another in eac h measurement attempt
on the numeric d isplay:
1 . step numb er in format APxx (Au to m a tic Ph a s e d e te c tio n , x ... attempt numb er)
2 . attempt result, e.g. L1L1-0 (see tab le 4 of c onnec tion method s)
If the c ontroller measures id entic al v alues repeated ly in eac h attempt, it c onsid ers the c onnec tion
d etec ted and q uits c arrying out further steps. If the measurement results are d ifferent from eac h other
in a partic ular step, the c ontroller c arries out another measurement step.
The following c ond itions must b e met for suc c essful c onnec tion d etec tion:
• type of measurement v oltage is set c orrec tly (phase or line – parameters 1 5 )
• at least two power fac tor c apac itors are c onnec ted to transistor group outputs and to
outputs 1 through 4 of relay group and no power fac tor c hok e is c onnec ted to these
outputs
Type of c onnec tion d etec ted is shown on the numeric d isplay for a moment after suc c essful
c ompletion of the automatic c onnec tion d etec tion proc ess, the true power fac tor v alue in the mains,
and thereafter the instrument starts the regulation proc ess or it starts the sec tion rec ognition proc ess
(see further b elow).
If the automatic c onnec tion d etec tion proc ess is not c ompleted suc c essfully, the numeric d isplay
shows flashing P=0.
0 It is, in suc h a c ase, nec essary to enter the c onnec tion type manually or to reenter ---- (= not d efined ) in ed iting parameter 1 6 and thus restart the automatic c onnec tion d etec tion
proc ess. O therwise the c ontroller c hanges ov er to a waiting mod e and it repeats the automatic
c onnec tion d etec tion proc ess in 1 5 minutes automatic ally.
The automatic c onnec tion d etec tion proc ess c an b e interrupted any time b y switc hing the numeric
d isplay mod e to Parameters, that is b y pressing b utton P. The automatic c onnec tion d etec tion
proc ess will start again from sc ratc h on return to instantaneous v alue d isplay mod e.
3.3 Aut
omat
i
cSect
i
onalCurrentRecogni
t
i
onProcess
The c ontrollers c ome as stand ard with enab led func tion of automatic sec tional c urrent d etec tion
(parameter 2 0 set to 1 ). A t this setting the c ontroller c arries out the automatic sec tional c urrent
d etec tion proc ess on every c ontroller power-up (c onnec tion of power supply v oltage). The proc ess
c an also b e started without interrupting the power supply v oltage c onnec tion, b y ed iting parameter 2 0
to v alue 1 or b y c ontroller initialisation (see further b elow).
F or the c ontroller to b e ab le to start the proc ess of automatic sec tional c urrent d etec tion, the following
c ond itions must b e met:
• c ontroller operation is not d isab led (i.e. the ManualL E D is d ark )
• c ontroller is in regulation mod e, i.e. the numeric d isplay mod e is Measurement and the
Parameters L E D is d ark
• measurement v oltage is c onnec ted
• measurement c urrent is suffic ient
• c onnec tion mod e of measurement U and I is d efined (parameter 1 6 )
If these c ond itions are met, the c ontroller starts the automatic sec tional c urrent d etec tion proc ess.
16
Novar 314 RS
K M B s y s te m s
The process may have three or six steps. The controller consecutively connects and disconnects each
output in each step ( if it is not preset as fixed output, parameter 2 6 ). It uses only so many transistor
outputs, that is set in parameter 2 8 .
W hile doing that it measures the effect of connection and disconnection on total reactive current in the
mains. F rom the values measured the current of each section is determined.
The follow ing messag es are show n one after another in each measurement attempt on the numeric
display:
1 . step numb er in format AC–x (x... step numb er)
2 . sectional current measured in amperes; if the metering current transformer turns ratio has
b een entered (parameters 1 2 and 1 3 ), sectional current in the mains is show n (that is the
metering current transformer primary current); if the metering current transformer primary
side (parameter 1 2 ) is not defined, sectional current in the metering current transformer’s
secondary w inding is show n
If the controller does not succeed in determining a section’s value, it does not show it. This condition
occurs if reactive current value in the mains fluctuates considerab ly due to chang es in load.
A fter carrying out three steps, evaluation is carried out. If each measurement in the steps carried out
provide sufficiently stab le results, the detection process is completed. O therw ise the controller carries
out three more steps. It puts an interval of approximately 3 0 seconds b etw een each three steps.
A req uirement for successful detection of current in each section is sufficiently stab le condition of the
mains – w hile connecting or disconnecting a section, the reactive load current must not chang e b y a
value w hich is comparab le w ith, or even g reater than, the reactive current vale of the section under
test. O therw ise the measurement result is unsuccessful.
O n successful completion of automatic section recog nition process the controller check s w hether at
least one capacitive section has b een detected and if so, it starts reg ulation. O therw ise the controller
g oes to the w aiting mode and after 1 5 minutes it starts the automatic sectional current recog nition
process ag ain.
E ach section value recog niz ed can b e check ed in side parameter b ranch 2 5 . A positive current value
means a capacitive section, neg ative value means inductive section. If the value could not b e
recog niz ed, “----” is show n. E ach value recog niz ed can b e edited manually.
Recommendation :
After checking v a lu es reco gniz ed it is reco m m end ed a t this p ha s e to s w itch p a ra m eter 2 0 to
0 ( ACAC-0 ). If s w itching a u to m a tic reco gnitio n p ro ces s o ff, co ntingent u ns u cces s fu l res u lts
o f reco gnitio n p ro ces s a fter a ccid enta l p o w er s u p p ly d ro p -o u t (d u e to grea t lo a d a nd rea ctiv e
cu rrent flu ctu a tio ns a fter p o w er reco v ery ) w ill b e a v o id ed .
If the automatic sectional current recog nition process can not b e completed successfully or none of
the sections recog niz ed is capacitive, flashing C=0 is show n on the numeric display and the Al
arm
sig nal is activated at the same time. In such a case it is necessary to enter each section’s value
manually (see description further b elow ) or b y editing parameter 2 0 enter value 1 (= carry out
automatic recog nition) and thus force another start of the automatic sectional current recog nition
process.
The automatic sectional current recog nition process can b e stopped any time b y sw itching the display
mode to Parameters, that is b y pressing the appropriate b utton. O n return to the instantaneous value
display mode the automatic sectional current recog nition process w ill b e started from the b eg inning
ag ain.
17
Novar 314 RS
K M B s y s te m s
4. O p e ra tio n
4.1 Cont
rolPri
nci
pl
es
Two simultaneous and, into a degree, independent control processes take place in Novar 314
controller:
•
fast control process with transistor outputs driving semiconductor switch es
•
slow control process with relay outputs switch ing circuit b reakers
RS
Fast control process h as a measurement stage, calculation stage and control intervention ex ecution.
F req uency of th e process can b e set in th e range 1 to 5 H z (1 to 5 control processes per second).
W h en calculating th e optimum control intervention, only each control section’s value is important and
sections of th e same value are switch ed in circular order (numb er of switch –ons is not evaluated). In
case disch arging resistors of low power are used, b locking delay of reswitch ing in range 0 .2 to 10
seconds can b e set.
S lo w control process using th e relay outputs h as to respect limitations b y th e compensation sections’
circuit b reakers’ parameters and service life. A ph ase measurement takes place once a second and
control ph ase timing, wh ich can only repeat itself every five seconds, is determined from th e control
deviation evaluated and control period set. W h en calculating control intervention, th e time of locking
out repeated switch –on h as to b e respected too. Th e optimum control intervention is ch osen not only
from th e sections’ values, b ut also from th e point of view of th e numb er of switch ing on each section,
th e time since th e last switch –off and th e total numb er of switch ing with in a control intervention.
In an optimum case th e ty pical control process th us goes on like th is: th e fast process compensates
small power factor deviations with in fractions of seconds and th at appears as compensated condition
to th e slow process so th e output relay s’ states do not ch ange. If th ere is a larger deviation in power
factor th an corresponds to th e transistor section’s control capacity , th e transistor outputs’ states get to
th e limit (all switch ed on or switch ed off). Th e slow process evaluates th e control deviation and th e
control time of th is slow control process starts counting down. A fter th e countdown elapses, control
intervention using output relay s is carried out.
A control intervention from th e slow control process is carried out in such a way th at compensated
condition is ach ieved wh ile ab out one h alf of th e transistor section’s compensation capacity is
connected. In such an optimum state th e fast process is th en ab le to respond to a ch ange in power
factor in th e sy stem in eith er polarity .
A n ex ception is state, wh en only low compensation power is necessary . W h en th e compensation
power necessary is lower th an total capacity of transitor group sections, a control intervention of slow
control process is carried out in th e way to simply reach compensated state ( with out considering th at
one h alf of th e transistor section’s compensation capacity sh ould b e connected ).
4.2 Set
up
To ach ieve optimum regulation in accordance with ch aracter of th e load regulated th e controller h as a
numb er of parameters th at govern its operation. tab le 3 sh ows a list of th e parameters. Th e following
ch apters describ e each parameter, its meaning and h ow it can b e edited.
4.2.1 P a ra m e te r E d itin g
Th e controller’s parameters are set to default values, wh ich are sh own in tab le 3, wh en sh ipped.
18
Novar 314 RS
K M B s y s te m s
To achieve optimum regulation results, it is sometime necessary to change some of the values in
correspond ence w ith particular req uirements; in the other situations it is at least necessary to enter the
measurement voltage type (phase or line) and the metering current transformer nominal second ary
value (5 A or 1 A ) in installation.
To prevent unq ualified operation, controller parameter ed iting can b e d isab led in w hich case it req uires
entering passw ord prior to ed iting (see further b elow ). If parameter ed iting is enab led , you should
proceed as follow s:
1 . S w itch controller to parameter d isplay mod e b y pressing b utton P.
2 . F ind parameter you w ant to ed it b y pressing the ↑, ↓ b uttons repeated ly.
3 . P ress b utton P (parameters) and hold it d ow n until the d isplay starts flashing.
4 . R elease b utton P and set the value d esired w ith the ↑, ↓ b uttons. S ome values can b e
incremented or d ecremented continuously b y hold ing d ow n the↑ or ↓ b utton.
5 . W hen the value d esired has b een reached , press b utton P. The value set w ill b e saved in
the controller’s memory, the d isplay stops flashing and ed iting is thus complete.
4.2.1.1 Enabl
e/Di
sabl
eParamet
erEdi
t
i
ng
W hen shipped , the controller is in the enab led status, that is the parameters can b e ed ited freely on
pow er supply voltage connection w ithout prior passw ord entry. A fter b eing put in operation parameter
ed iting can b e d isab led to protect the controller against unauthoriz ed changes in operation this w ay.
To see if ed iting is d isab led or enab led check parameter 0 0 . It can contain the follow ing:
PA=PA=
- ......... passw ord not yet entered , parameter ed iting d isab led
PA=Y ........ passw ord entered correctly, parameters can b e ed ited
The ed it enab le / d isab le status is saved in the controller even after pow er outage.
If the passw ord has not b een entered correctly, the instrument’s parameters can not b e changed .
P assw ord is entered in a similar w ay to that of controller parameter ed iting:
1 . S w itch controller to parameter d isplay mod e b y pressing b utton P (controller must not b e
in the Manualmod e) and d isplay parameter 0 0 .
2 . P ress b utton P (parameters) and hold it d ow n until the last character on the d isplay starts
flashing. A d igit b etw een 0 and 9 w ill b e show n on the last d igit position. A s an ex ample
you can imagine 5 is d isplayed so the d isplay show s PA=5 w ith the 5 flashing.
3 . P ress the follow ing seq uence: ↓ ,↑, ↑, ↓. If 5 w as show n as the last d isplay d igit, it
w ould change to 4,5,6,5 so the same value is show n at the end as at he b eginning.
4 . P ress b utton P. The d isplay w ill show PA=Y,
PA=Y ind icating correct passw ord entry and
enab led parameter ed iting.
The d igit show n w hile entering the passw ord is rand om generated b y the controller and it is not
important for passw ord correctness (it is there only to confuse). O nly the seq uence of b uttons pressed
is important.
A fter correct passw ord entry, parameter ed it mod e is enab led until it gets d isab led b y the operator.
The parameter ed it enab le or d isab le cond itioned is retained in the instrument even on pow er off.
P arameter ed it d isab le mod e is sw itched to on (intentional) pressing b uttons d ifferent from the correct
passw ord entry seq uence.
19
Novar 314 RS
K M B s y s te m s
4.2.2 P a ra m e te r 0 1 /0 7 – T a rg e t P o w e r F a c to r
The value of target p ow er fac tor for tariff 1 (p aram eter 0 1 ) or tariff 2 (p aram eter 0 7 ) c an b e s et in the
ran ge from 0 .8 0 lag to 0 .9 0 lead .
4.2.3 P a ra m e te r 0 2/0 8 – R e la y G ro u p R e g u la tio n T im e w ith in U n d e rc o m p e n s a tio n
The value for tariff 1 (p aram eter 0 2 ) or tariff 2 (p aram eter 0 8 ) c an b e s et to on e of the follow in g values :
5 ,1 0 ,1 5 , 2 0 , 3 0 , 6 0 , 1 2 0 , 1 8 0 , 3 0 0 , 6 0 0 , 1 2 0 0 s ec on d s . The value s et d eterm in es the freq uen c y of
regulation in terven tion s un d er the follow in g c on d ition s :
• in s tan tan eous p ow er fac tor is m ore in d uc tive than the on e req uired – un d erc om p en s ated
• the d ifferen c e b etw een reac tive c urren t in s tan tan eous value in the m ain s an d op tim um
value, w hic h c orres p on d s to the p ow er fac tor req uired s ettin g (= c on trol d eviation ), is jus t
eq ual to the s m alles t c ap ac itive s ec tion c urren t of relay group (C /k )
If the p aram eter value is s et to s ay 1 8 0 an d the ab ove m en tion ed c on d ition s are m et in the m ain s , the
c on troller c alc ulates op tim um c om p en s ation an d c arries out regulation in terven tion every 1 8 0
s ec on d s .
The tim e m en tion ed gets s horter in p rop ortion to the in s tan tan eous c on trol d eviation , that is as s q uare
of c on trol d eviation over the s m alles t c ap ac itive s ec tion value of relay group (C /k ). R is in g c on trol
d eviation c an d ec reas e this value d ow n to the m in im um regulation tim e of 5 s ec on d s .
O n the c on trary , if the c on trol d eviation is s m aller than the s m alles t c ap ac itive s ec tion c urren t of relay
group (C /k ), regulation tim e gets tw ic e as lon g. If the c on trol d eviation falls further un d er half of the
s m alles t c ap ac itive s ec tion c urren t value (C /k ), n o regulation in terven tion tak es p lac e.
4.2.4 P a ra m e te r 0 3 /0 9 – R e la y G ro u p R e g u la tio n T im e w ith in O v e rc o m p e n s a tio n
The value for tariff 1 (p aram eter 0 3 ) or for tariff 2 (p aram eter 9 ) c an b e s et to on e of the values :
5 ,1 0 ,1 5 , 2 0 , 3 0 , 6 0 , 1 2 0 , 1 8 0 , 3 0 0 , 6 0 0 , 1 2 0 0 s ec on d s . The value s et d eterm in es freq uen c y of the
freq uen c y of regulation in terven tion s , very m uc h lik e in p aram eter 0 2 /0 8 d es c rib ed ab ove. There is a
d ifferen c e though: it on ly ap p lies if the in s tan tan eous p ow er fac tor is m ore c ap ac itive than that
req uired , that is it is overc om p en s ated .
The regulation tim e’s effec t in p rop ortion to c on trol d eviation m agn itud e is the s am e as w ith p aram eter
0 2 /0 8 d es c rib ed ab ove.
20
Novar 314 RS
K M B s y s te m s
table 3: C o n tro ller P aram eters
#
0
1
2
3
6
7
8
9
12
13
14
15
16
20
21
m e an in g
e d it e n a b le d (p a s s w o rd )
ta rg e t p o w e r fa c to r (ta riff 1)
re la y g ro u p re g u la tio n tim e w h e n
u n d e rc o m p e n s a te d (ta riff 1)
re la y g ro u p re g u la tio n tim e w h e n
o v e rc o m p e n s a te d (ta riff 1)
ta riff 2 e v a lu a tio n
ta rg e t p o w e r fa c to r (ta riff 2)
re la y g ro u p re g u la tio n tim e w h e n
u n d e rc o m p e n s a te d (ta riff 2)
re la y g ro u p re g u la tio n tim e w h e n
o v e rc o m p e n s a te d (ta riff 2)
c u rre n t tra n s fo rm e r p rim a ry s id e
n o m in a l v a lu e
m e te rin g c u rre n t tra n s fo rm e r
s e c o n d a ry s id e n o m in a l v a lu e
re la y g ro u p re c o n n e c tio n d e la y
tim e
m e a s u re m e n t v o lta g e ty p e –
p h a s e -n e u tra l o r p h a s e -p h a s e
m e th o d o f c o n n e c tio n o f U a n d I
a u to m a tic s e c tio n a l c u rre n t
re c o g n itio n
re la y g ro u p c o n n e c tin g p ro g ra m
s e ttin g ran g e
s te p
d e fau lt
0.01
-
Y
0.9 8 la g
180
see Enable / Disable Parameter Editing
-
30
v alid fo r relay gro u p o nly
0 (n o ) - 1 (y e s )
0.80 la g to 0.9 0 le a d
5,10,15, 2 0, 3 0, 6 0, 12 0,
180, 3 00, 6 00, 12 00 s e c o n d s
0.01
-
0 (n o )
0.9 8 la g
180
2 x x line c o ntro llers o nly
-
30
5 ÷ 9 9 50 A
5
none
1A ÷ 5A
-
5
5,10, 2 0, 3 0, 6 0, 12 0, 3 00,
6 00, 12 00 s e c o n d s
-
20
v alid fo r relay gro u p o nly
P N -P P
-
PN
T h is p arameter’s c o rrec t setting is essential fo r
au to matic c o nnec tio n detec tio n p ro c ess.
6 c o m b in a tio n s
0 (n o ) - 1 (y e s )
-
none
1 (y e s )
12 ty p ic a l c o m b in a tio n s
-
none
5,10,15, 2 0, 3 0, 6 0, 12 0,
180, 3 00, 6 00, 12 00 s e c o n d s
5,10,15, 2 0, 3 0, 6 0, 12 0,
180, 3 00, 6 00, 12 00 s e c o n d s
22
(0.01 ÷ 2 A ) x m e te rin g
s m a lle s t c a p a c ito r c u rre n t (C /k
v a lu e o f re la y g ro u p c a lc u la te d fo r c u rre n t tra n s fo rm e r ra tio
c u rre n t tra n s fo rm e r p rim a ry s id e )
0.01
none
23
n u m b e r o f re la y g ro u p c a p a c ito rs
1÷ 8
-
8
0÷ 7
(0.01 ÷ 8 A ) x C .T . ra tio
0.01
0
none
re g u la te d / 0 / 1
0.80 la g to 0.9 0 le a d
0.01
a ll re g u la te d
none
n o . o f tra n s is to r g ro u p c a p a c ito rs
tra n s is to r g ro u p c o n tro l ra te ,
re c o n n e c tio n d e la y tim e
a la rm s e ttin g
1÷ 6
1 ÷ 5 in te rv e n tio n s p e r s e c .
0.2 ÷ 10 s e c o n d s
-
0
1per second
0 / in d ic a tio n o n ly / a c tu a tio n
o n ly / in d ic a tio n a n d
a c tu a tio n
-
0.5 ÷ 3 00 %
10,000 ÷ 2 ,000,000
0.5
10,000
33
T H D lim it (fo r a la rm )
lim it n u m b e r o f s w itc h in g
o p e ra tio n s (a la rm )
d e v ic e a d d re s s (re m o te c o m m .)
10 s e c o n d s
in d ic a tio n a n d
a c tu a tio n fro m
u n d e rc u rre n t,
v o lta g e a b s e n c e
o r s e c tio n e rro r
20
1,000,000
1 ÷ 2 55
1
1
6 00 ÷ 9 ,6 00 B d
-
9 ,6 00
35
re m o te c o m m u n ic a tio n p ro to c o l
K M B (P 0) / M o d b u s -R T U (P 1)
-
K M B (P 0)
24
25
26
27
28
29
30
31
32
34
40
41
42
43
44
45
46
47
n u m b e r o f c h o k e s o f re la y g ro u p
s e c tio n a l c u rre n t
fix e d s e c tio n s
lim it P F fo r re g u la tio n b y c h o k e
re m o te c o m m u n ic a tio n ra te
n ote
- (n o ) / Y(y e s )
0.80 la g to 0.9 0 le a d
5,10,15, 2 0, 3 0, 6 0, 12 0,
180, 3 00, 6 00, 12 00 s e c o n d s
a la rm in s ta n ta n e o u s c o n d itio n
m in im u m p o w e r fa c to r re c o rd e d
m a x im u m T H D re c o rd e d
m a x im u m v a lu e o f h a rm o n ic s
(3rd, 5 th , 7th , 11th , 13th , 17th )
n u m b e r o f s e c tio n s w itc h in g (in
th o u s a n d s )
v alid fo r relay gro u p o nly
no t sh o w n u nless tariff 2 ev alu atio n enabled
no t sh o w n u nless tariff 2 ev alu atio n enabled
v alid fo r relay gro u p o nly
no t sh o w n u nless tariff 2 ev alu atio n enabled
v alid fo r relay gro u p o nly
see p arameter desc rip tio n
A u to matic sec tio nal c u rrent detec tio n tak es p lac e o n
sw itc h ing th is p arameter fro m 0 to 1 o r o n c o ntro ller
p o w er-u p w h ile v alu e 1 is set h ere.
0 means indiv idu al sec tio n setting. N o t sh o w n if
au to matic sec tio n rec o gnitio n is enabled. V alid fo r relay
gro u p o nly .
V alu e o n metering c u rrent transfo rmer’s p rimary side – if
its p rimary no minal v alu e h as no t been entered,
sec o ndary side c u rrent is sh o w n. N o t sh o w n if
au to matic sec tio n rec o gnitio n is enabled. V alid fo r relay
gro u p o nly .
N o t sh o w n if au to matic sec tio n rec o gnitio n is enabled.
V alid fo r relay gro u p o nly .
N o t sh o w n if au to matic sec tio n rec o gnitio n is enabled.
p o sitiv e fo r c ap ac itiv e sec tio ns (lead), negativ e fo r
c h o k es (lag)
N o regu latio n by c h o k es tak es p lac e u nless th is
p arameter is sp ec ified.
v alid fo r transisto r gro u p o nly
v alid fo r transisto r gro u p o nly
list o f c o nditio ns:
1 ... u nderc u rrent
2 ... o v erc u rrent
3 ... c o mp ensatio n erro r
4 ... v o ltage signal absenc e
5 ... h armo nic disto rtio n
6 ... no . o f c o nn. ex c eeded
8 ... feeding bac k c o nditio n
9 ... sec tio n erro r
no t sh o w n u nless alarm fro m T H D limit set
no t sh o w n u nless alarm fro m limit nu mber o f sw itc h ing
o p eratio ns set
no t sh o w n in instru ment w ith o u t remo te c o mmu nic atio n
interfac e
no t sh o w n in instru ment w ith o u t remo te c o mmu nic atio n
interfac e
no t sh o w n in instru ment w ith o u t remo te c o mmu nic atio n
interfac e
Indic ates c u rrent state o f alarm.
in o p eratio n fro m lo ad 1 0 % u p
in o p eratio n fro m lo ad 1 0 % u p
in o p eratio n fro m lo ad 1 0 % u p
disp lay range 0 .0 0 1 to 9 9 9 9
fo r relay gro u p o nly
in s tru m e n t fa ilu re c o n d itio n
re g u la tio n tim e in s ta n t. c o n d itio n
s e c tio n s w itc h -o n tim e (in
th o u s a n d s o f h o u rs )
time u ntil nex t regu latio n interv entio n in sec o nds
disp lay range 0 .0 0 1 to 1 3 0
21
Novar 314 RS
K M B s y s te m s
4.2.5 P a ra m e te r 0 6 – T a riff 2 O p e ra tio n
Novar 314 RS controller allows changing the above described basic regu lation p aram eters while
regu lation is in p rogress, triggered by ex ternal signal (relay contact). It has a tariff 2 req u est inp u t for
this op eration, to which an insu lated contact or op tocou p ler can be connected.
P aram eter 6 in these controllers sp ecifies if a tariff 2 req u est is to be p rocessed or not. B y defau lt the
controller is set to ignore tariff 2 req u ests, that is p aram eter 6 is set to 0 and only p aram eters 1
throu gh 3 of the p aram eters described above are ap p lied; p aram eters 7 throu gh 9 are not significant in
su ch a case so they are not shown.
If y ou set the p aram eter to 1, the controller will start evalu ating tariff 2 req u ests and, dep ending on
the inp u t’s instantaneou s condition, u se p aram eters 1 throu gh 3 or 7 throu gh 9 . T he p aram eter’s valu e
1. T he decim al p oint after the last character then indicates whether tariff 2 req u est is
is then t2=1
ju st active. If it is dark , tariff 2 req u est is not active and only p aram eters for tariff 1 ap p ly . O n the
op p osite, lit decim al p oint indicates active tariff 2 req u est and the controller u ses p aram eters set for
tariff 2 .
T he 1x x line controllers do not featu re tariff 2 op eration so they do not disp lay p aram eter 6 .
4.2.6 P a ra m e te rs 1 2,1 3 – M e te rin g C u rre n t T ra n s fo rm e r R a tio
Y ou can set m etering cu rrent transform er nom inal p rim ary valu e in am p eres u sing p aram eter 12 . T he
setting range is from 5 to 9 ,9 5 0 .
T his p aram eter (12 ) is not defined (---- shown) by defau lt. W ith this setting, all valu es that are cu rrentrelated, that is m easu red valu es of instantaneou s effective, active and reactive cu rrents and fu rther
the C /k valu e (p aram eter 2 2 ) and cu rrents in each section (p aram eter 2 5 ), are shown in the m agnitu de
to which they are transform ed at the m etering cu rrent transform er secondary side. T he p aram eter’s
valu e set does not affect the controller’s regu lation op eration, it only affects disp lay ed valu es that are
related to cu rrent.
P aram eter 13 selects m etering cu rrent transform er nom inal secondary cu rrent. Y ou can choose from
5 A and 1A . W a rn in g !!! U n lik e p a ra m e te r 1 2 , th is p a ra m e te r m u s t b e s e t c o rre c tly fo r c o n tro lle r’s
p ro p e r o p e ra tio n ! T he controller determ ines whether the cu rrent inp u t is overloaded evalu ating this
p aram eter and instantaneou s cu rrent valu e. T he controller m ay stop op eration u ndesirably or,
contrariwise, this op eration disablem ent will not work when it shou ld (see descrip tion of p aram eter 30 ,
alarm from overcu rrent).
P aram eter 13 setting will be k ep t even on controller initialisation (see descrip tion fu rther below).
4.2.7 P a ra m e te r 1 4 – R e c o n n e c tio n D e la y T im e o f R e la y G ro u p
It is u sed to ensu re su fficient discharge of a cap acitive section p rior to reconnection. It can be set to
one of the valu es: 5 , 10 , 2 0 , 30 , 6 0 , 12 0 , 30 0 , 6 0 0 or 12 0 0 seconds.
4.2.8 P a ra m e te rs 1 5,1 6 – M e a s u re m e n t V o lta g e T y p e a n d C o n n e c tio n
U=PN;
P aram eter 15 determ ines if the m easu rem ent voltage connected is p hase ( p hase-neu tral,U=
PN
U=PP ). If the m easu rem ent voltage is connected at the p ower
defau lt valu e) or line ( p hase-p hase,U=
su p p ly transform er’s side op p osite to m easu rem ent cu rrent connection, the connection ty p e valu e
m u st be set in accordance with transform er ty p e – see descrip tion in a sep arate chap ter fu rther below.
C o n n e c tio n ty p e p a ra m e te r m u s t d e fin ite ly b e s e t c o rre c tly in in s ta lla tio n , even if au tom atic
connection detection p rocess is assu m ed to tak e p lace. O therwise the p ower factor m easu red will be
evalu ated with errors!
22
Novar 314 RS
K M B s y s te m s
The connection type parameter (15) value set will be kept even on controller initialisation (see
d escription further below).
P arameter 16 d etermines the method of measurement voltag e connection with respect to
measurement current, that is between which phases or neutral wire the measurement voltag e is
connected . It is assumed that the metering current transformer is in phase 1 and its orientation
(terminals k, l) correspond s to real orientation supply–appliance. The method of connection is
specified as one of six combinations as in table 4.
tab le 4: m e asu re m e nt v oltag e c onne c tion
N otes:
#
1
2
3
4
5
6
p h as e m e as u re m e n t voltag e
U=PN
connection
#
1
2
3
4
5
6
L1-0
L22-0
L33-0
0-L1
0-L2
0-L3
lin e m e as u re m e n t voltag e
U=PP
connection
L1-L2
2-L3
L2
3-L1
L3
2-L1
L2
3-L2
L3
L1-L3
•
It is assumed that the metering current transformer is in phase 1 and its orientation (terminals
k, l) correspond s to real orientation supply–appliance.
•
The method of connection is shown as x –y where x represents the phase connected to
controller’s terminal L1 and y represents the phase connected to controller’s terminal N/
L (0
represents the neutral wire).
If the connection method value is entered as not specified (---- value), the automatic connection
d etection process is started . If the type of connection (phase or line, parameter 15) is chang ed , the
method of connection (parameter 16) is automatically set to und efined value.
4.2.8.1 Set
t
i
ngTypeofConnect
i
oni
fMeasuri
ngatPowerSuppl
yTransf
ormer’
s
Opposi
t
eSi
des
If the measurement current sig nal is from the power supply transformer’s sid e opposite to
measurement voltag e sig nal sid e, the transformer’s hour ang le is conclusive for correct parameter 15
setting . This value specifies the ang le between voltag e vectors of correspond ing phases at primary
and second ary wind ing s. The hour ang le can be in the rang e from 0 to 11, correspond ing to phase
ang les from 0 to 330 d eg rees (in steps by thirty d eg rees).
P rovid ed the measurement voltag e sig nal is connected in accordance with the type of transformer
(that is phase measurement voltag e is connected to controller with wye connection or line
measurement voltag e with d elta connection), it is necessary to set p h as e type of connection with
ev en hour ang le value and line type of connection with odd hour ang le value.
If the measurement voltag e sig nal is connected in contradiction with the type of transformer, the
opposite rule applies: line connection with ev en hour ang le or p h as e connection with odd hour ang le.
D etermining parameter 15 ex plained on practical ex amples:
Exampl
e1:
23
Novar 314 RS
K M B s y s te m s
Compensation should be done in consumption supplied via a Dy1 transformer w hile line measurement
voltag e w ill be tak en from its primary side (D stands for delta connection) and measurement current
sig nal from a metering current transformer at the pow er supply transformer’s secondary side (y stands
for w y e connection).
determining type of connection (pa ra meter 1 5 ):
1 . T he transformer’s primary side is delta-connected and line primary voltag e w ill be connected
to the controller (usually via a metering voltag e transformer w ith nominal output voltag e 1 0 0
V A C) — this means the measurement voltag e w ill be connected in a c c o rd a n c e w ith the
ty pe of transformer.
2 . S ince the measurement voltag e is connected in a c c o rd a n c e w ith the ty pe of transformer and
the transformer’s hour ang le (1 ) is o d d , y ou set the method of measurement voltag e
connection to lin e . (If the hour ang le w as even or if the measurement voltag e w as not
connected in accordance w ith the ty pe of transformer, y ou w ould set phase connection).
Example 2:
Compensation should be done in consumption supplied via a Y y6 transformer w hile line measurement
voltag e w ill be tak en from its secondary side (y stands for w y e connection) and measurement current
sig nal from a metering current transformer at the pow er supply transformer’s primary side (Y stands
for w y e connection ag ain).
determining type of connection (pa ra meter 1 5 ):
1 . T he transformer’s secondary side is w y e-connected, but line secondary voltag e w ill be
connected to the controller — this means the measurement voltag e w ill be connected in
c o n tra d ic tio n w ith the ty pe of transformer.
2 . T he measurement voltag e is connected in c o n tra d ic tio n w ith the ty pe of transformer and the
transformer’s hour ang le (6 ) is e v e n , so y ou set parameter 1 5 to lin e . (If the measurement
voltag e w as connected in accordance w ith the ty pe of transformer, y ou w ould set phase
connection).
If in doubt w ith correctness of determining the ty pe of connection, ex perimental validation is
convenient: after automatic connection detection y ou can usually compare the pow er factor value
show n by the controller w ith information on billing electricity meter (ratio of revolutions of active and
reactive electricity meters). If in discrepancy , y ou have to set ty pe of connection to the opposite value
and repeat the validation process.
4.2.9 P a ra m e te r 20 – A u to m a tic S e c tio n a l C u rre n t R e c o g n itio n
T he controllers are shipped w ith default setting of enabled automatic sectional current recog nition
(parameter 2 0 set to 1 , AC=1). W ith this setting the controller carries out the automatic sectional
current recog nition process a lw a ys on controller pow er-up (introduction of pow er supply voltag e).
T he process can also be started w ithout interrupting pow er supply voltag e, by editing parameter 2 0 to
value 1 or by controller initialisation (see further below ).
If automatic section detection is set, it mak es no sense to set parameters 2 1 throug h 2 4 , therefore
these parameters are not show n.
A utomatic sectional current recog nition can be disabled by setting parameter 2 0 to 0. In such a case
sections’ values must be entered using parameters 2 1 throug h 2 4 .
24
Novar 314 RS
K M B s y s te m s
The controller recognizes only so m a ny sections of tra nsistor grou p tha t is p reset in p a ra m eter 28.
This v a lu e m u st b e set a t insta lla tion a nd it w ill b e k ep t ev en on controller initialisation (see d escrip tion
fu rther b elow ).
4.2.10 P a ra m e te rs 21, 22 – S w itc h in g P ro g ra m a n d S m a lle s t C a p a c ito r V a lu e o f R e la y
G ro u p (IMIN, o r C /k )
If a u tom a tic sectiona l cu rrent recognition is d isa b led , you ca n enter the v a lu e of ea ch section of rela y
grou p u sing these p a ra m eters. S ectiona l cu rrents of tra nsistor grou p ca nnot b e sp ecified in this w a y –
they ca n b e entered ind iv id u a lly in p a ra m eter 25 only.
P a ra m eter 21 sp ecifies the sw itching p rogra m w hich d eterm ines the ra tio of v a lu es of ind iv id u a l
ca p a citiv e sections of the grou p . O ne of p reset com b ina tions ca n b e selected a s show n in ta b le 5.
The ca p a citors m u st b e connected to the controller’s rela y grou p ou tp u ts in the ord er corresp ond ing to
the sw itching p rogra m selected so tha t the sm a llest v a lu e ca p a citor is a t ou tp u t 1. The nu m b er of
ca p a citors connected m u st b e entered in p a ra m eter 23. If this nu m b er is grea ter tha n 5, the controller
a ssu m es tha t v a lu es of sections 6 a nd higher a re eq u a l to section 5 v a lu e.
If none of the p reset com b ina tions corresp ond s to the a rra ngem ent req u ired , a ny v a lu e of ea ch
section ca n b e entered b y ed iting p a ra m eter 25. In su ch a ca se the sw itching p rogra m p a ra m eter (21)
is a u tom a tica lly set to 0, w hich ind ica tes ind iv id u al sw itc h ing p rog ram . In this ca se p a ra m eter 22
m isses its p u rp ose so it is not show n.
tab le 5: sw itc h ing p rog ram
#
1
2
3
4
5
6
com b ina tion
1:1:1:1:1
1:1:2:2:2
1:1:2:2:4
1:1:2:3:3
1:1:2:4:4
1:1:2:4:8
d isp la yed
1111
1122
11224
1123
1124
11248
#
7
8
9
10
11
12
com b ina tion
1:2:2:2:2
1:2:3:3:3
1:2:3:4:4
1:2:3:6:6
1:2:4:4:4
1:2:4:8:8
d isp la yed
1222
1233
1234
1236
1244
1248
If the sw itching p rogra m is set to one of the v a lu es show n in ta b le 5, you still ha v e to enter the
sm a llest ca p a citor cu rrent of rela y grou p , IMIN (corresp ond ing the v a lu e 1, p a ra m eter 22). This v a lu e is
d isp la yed in a m p eres a nd is either eq u a l to the ca p a citor’s rea l cu rrent in the m a ins (if the cu rrent
tra nsform er’s nom ina l p rim a ry v a lu e ha s b een sp ecified ) or eq u a l to cu rrent a t the cu rrent
tra nsform er’s second a ry sid e (in the other ca se) – then the v a lu e is w ha t is genera lly k now s a s C /k
consta nt.
Y ou ca n d eterm ine the sm a llest ca p a citor’s cu rrent u sing the form u la
IMIN = QMIN / (1,73 x UL) [ A , V A r, V ]
IMIN...... sm a llest section’s cu rrent of rela y grou p in a m p eres
QMIN..... sm a llest section’s p ow er of rela y grou p in v olt-a m p eres rea ctiv e
UL........ line v olta ge in v olts (for ex a m p le 40 0 V )
The follow ing ta b le show s cu rrents for m ost u sed com p ensa tion ca p a citors:
25
Novar 314 RS
K M B s y s te m s
table 6: c ap ac ito r’s c u rren t (fo r U L = 4 0 0 V )
Q [kVAr]
I [A]
2
2.9
3 .1 5
4.6
4
5.8
5
7 .2
6 .25
9 .0
8
1 1 .6
10
1 4.5
1 2.5
1 8.1
Q [kVAr]
15
20
25
30
40
50
60
100
I [A]
21 .7
28.9
3 6 .1
43 .4
57 .8
7 2.3
86 .7
1 44.5
If th e m e te rin g c u rre n t tra n s fo rm e r’s n o m in a l p rim a ry v a lu e h a s n o t b e e n s p e c ifie d , it is n e c e s s a ry to
e n te r th e C /k v a lu e ra th e r th a n th e s m a lle s t c a p a c ito r c u rre n t. Y o u c a n o b ta in th is v a lu e a s a ra tio o f
th e s m a lle s t c a p a c ito r c u rre n t a n d th e m e te rin g c u rre n t tra n s fo rm e r ra tio . C /k v a lu e c a n b e s e t in th e
ra n g e b e tw e e n 0 .0 1 a n d 2 A.
If th e m e te rin g c u rre n t tra n s fo rm e r’s n o m in a l p rim a ry v a lu e h a s b e e n s p e c ifie d , th e s m a lle s t c a p a c ito r
c u rre n t is to b e e n te re d , IMIN (e q u a l to C /k v a lu e m u ltip lie d b y m e te rin g c u rre n t tra n s fo rm e r ra tio ).
4.2.11 P a ra m e te r 23 , 24 – N u m b e r o f C a p a c ito rs a n d C h o k e s o f R e la y G ro u p
If e n te rin g c a p a c ito rs ’ c u rre n ts m a n u a lly u s in g th e s w itc h in g p ro g ra m a n d s m a lle s t c a p a c ito r c u rre n t o f
re la y g ro u p (p a ra m e te rs 21 , 22), it is a ls o n e c e s s a ry to e n te r th e n u m b e r o f c a p a c ito rs c o n n e c te d to
th e g ro u p – p a ra m e te r 23 . T h e v a lu e c a n b e s e t w ith in a ra n g e 1 th ro u g h 8.
If u s in g a s m a lle r n u m b e r o f c a p a c ito rs th a n th e ty p e o f c o n tro lle r a llo w s , it is n e c e s s a ry to c o n n e c t th e
c a p a c ito rs to o u tp u ts s ta rtin g w ith o u tp u t 1 o f th e g ro u p (th a t is th e u n c o n n e c te d o u tp u ts w ill b e th o s e
w ith th e h ig h e s t o rd in a l n u m b e rs ).
If th e c o n tro lle r re la y g ro u p o u tp u ts a re n o t a ll u s e d fo r c a p a c ito r c o n n e c tio n s , th e u n u s e d o u tp u ts c a n
b e u s e d fo r c o n n e c tin g c o m p e n s a tio n c h o ke s . T h e n u m b e r o f c h o ke s c o n n e c te d m u s t b e e n te re d in
p a ra m e te r 24 – th e m a x im u m n u m b e r is 7 . T h e c o n tro lle r a s s u m e s th a t th e c h o ke s a re c o n n e c te d
fro m th e lo w e s t fre e o u tp u t u p (th a t is s ta rtin g w ith th e s e c tio n fo llo w in g th e la s t re la y g ro u p c a p a c ito r
o u tp u t c o n n e c te d ).
T h e s e c h o ke s ’ c u rre n ts c a n b e e n te re d in p a ra m e te r 25, fo r e a c h c h o ke s e p a ra te ly (c a re fu l, a c h o ke ’s
c u rre n t m u s t b e e n te re d a s a n e g a tiv e v a lu e – p o s itiv e c u rre n ts a re c o n s id e re d c a p a c itiv e s e c tio n s b y
th e c o n tro lle r!)
4.2.12 P a ra m e te r 25 – C o m p e n s a tio n S e c tio n s ’ C u rre n ts
C u rre n t o f e a c h c o m p e n s a tio n o u tp u t (o f b o th tra n s is to r a n d re la y g ro u p ) c a n b e e d ite d in th e s id e
b ra n c h o f th is p a ra m e te r if n e c e s s a ry .
T h e c u rre n ts a re s h o w n in a m p e re s . T h e y a re e q u a l to e ith e r re a l c u rre n t o f th e c o m p e n s a tio n s e c tio n
(c a p a c ito r o r c h o ke ) in th e m a in s (if th e m e te rin g c u rre n t tra n s fo rm e r’s n o m in a l p rim a ry v a lu e h a s
b e e n s p e c ifie d ) o r th e m e te rin g c u rre n t tra n s fo rm e r’s s e c o n d a ry v a lu e (in th e o th e r c a s e ). C a p a c itiv e
s e c tio n s a re s h o w n a s p o s itiv e , in d u c tiv e s e c tio n s a s n e g a tiv e . If a s e c tio n ’s c u rre n t is n o t kn o w n (fo r
e x a m p le b e c a u s e o f s u c c e s s fu l c o m p le tio n o f th e a u to m a tic s e c tio n re c o g n itio n p ro c e s s ), th e ---v a lu e is s h o w n . In s u c h a c a s e , a s w e ll a s in th e c a s e o f s e c tio n c u rre n t z e ro v a lu e , th e c o n tro lle r d o e s
n o t u s e th e c o rre s p o n d in g re g u la tio n o u tp u t.
T h e c o n tro lle r is s h ip p e d w ith d e fa u lt s e ttin g o f a u to m a tic s e c tio n re c o g n itio n e n a b le d (p a ra m e te r 20
s e t to 1 ). T h e a u to m a tic s e c tio n a l c u rre n t re c o g n itio n p ro c e s s is s ta rte d o n in tro d u c in g th e p o w e r
s u p p ly v o lta g e a n d a fte r it h a s fin is h e d y o u c a n c h e c k o r e d it th e re c o g n iz e d c u rre n ts in th e s id e
b ra n c h o f p a ra m e te r 25.
E a c h s e c tio n a l c u rre n t o f re la y g ro u p c a n b e c h a n g e d e v e n if th e y h a v e b e e n e n te re d m a n u a lly u s in g
th e s w itc h in g p ro g ra m a n d s m a lle s t c a p a c ito r c u rre n t (p a ra m e te rs 21 , 22).
If a s e c tio n ’s v a lu e is s h o w n w ith a fla s h in g d e c im a l p o in t, it m e a n s :
26
Novar 314 RS
K M B s y s te m s
• decimal point flashing slowly (ab ou t once a second), the section has not b een accu riz ed y et –
see description of the mechanism to accu riz e sections in a relev ant chapter fu rther b elow
• decimal point flashing fa st (ab ou t three times a second), the section has b een disab led and the
controller is not u sing it – see description of the mechanism to section disab lement in a
relev ant chapter fu rther b elow
T ransistor grou p sections are neither accu riz ed nor disab led, so appropriate decimal points are lit
permanently .
4.2.13 P a ra m e te r 26 – F ix e d S e c tio n s
A ny controller ou tpu t ( of b oth transistor and relay grou p ) can b e set as fix ed. In su ch a case the
ou tpu t is permanently connected or disconnected and the controller does not u se it for regu lation. A
fix ed ou tpu t re m a in s in a p re sp e c ifie d c on d ition (that is connected or disconnected) w ith the
follow ing ex ceptions:
• the controller is sw itched to the Manual mode
• a selected nonstandard condition occu rs w hile the alarm’s corresponding actu ation
fu nction has b een set (for details see alarm description fu rther b elow )
A fix ed section (one set as permanently connected) is on ly disconnected if alarm from ex ceeding the
T H D limit has b een enab led and T H D does ex ceed this limit for a specified time (for details see
description of alarm fu nctions fu rther b elow ).
B y defau lt all controller’s ou tpu ts are set as regu lating, not fix ed. In su ch a case they are show n for
ex ample as follow s:
T1T1-C...... transistor ou tpu t T 1 is regu lating and it is a capacitiv e section (capacitor)
R8R8-L..... relay ou tpu t 8 is regu lating and it is an indu ctiv e section (chok e)
E ach section’s v alu e can b e set to 1 or 0 — in that case R1–
R1–1 or R1–
R1–0, respectiv ely , is show n
and the corresponding ou tpu t b ecomes a fix ed one – it w ill b e permanently connected or
disconnected.
4.2.14 P a ra m e te r 27 – L im it P o w e r F a c to r fo r R e g u la tio n b y C h o k e
T his parameter specifies pow er factor v alu e at w hich the controller starts u sing, b esides capacitiv e
sections, indu ctiv e compensation section for regu lation as w ell – chok es (if av ailab le).
If the pow er factor measu red is more indu ctiv e (cu rrent more lagging) than the v alu e set in this
parameter, the controller u ses only capacitiv e sections (capacitors) for regu lating compensation.
If the pow er factor in the mains changes so that it is more capacitiv e (cu rrent more leading) than the
limit v alu e for regu lation b y chok e, the controller starts u sing comb ination of capacitiv e and indu ctiv e
compensation sections for regu lation.
B y defau lt this parameter’s v alu e is set as nonspecified (-.--- show n) in a shipped controller or after
its initialisation. In su ch a case the controller does not u se chok es that are av ailab le (su ch sections are
permanently disconnected) and it does not ev en detect av ailab le chok es in the au tomatic section
detection process.
R egu lation b y indu ctiv e sections is describ ed in more detail in an appropriate chapter fu rther b elow .
27
Novar 314 RS
K M B s y s te m s
4.2.15 P a ra m e te r 28 – N u m b e r o f C a p a c ito rs o f T ra n s is to r G ro u p
It is necessary to enter the number of capacitors connected by thyristor switches to the transistor
g roup when installing the controller.
U p six capacitors can be connected. If using a smaller number, it is necessary to connect the
capacitors to outputs starting with output T 1 of the g roup (that is the unconnected outputs will be those
with the hig hest ordinal numbers).
T he v alue set will be k ept ev en on controller initialisation (see description further below).
4.2.16 P a ra m e te r 29 – T ra n s is to r G ro u p C o n tro l R a te a n d R e c o n n e c tio n D e la y T im e
A lthoug h lifetime of thyristor switches is not limited by number of of switching and due to switching at
z ero v oltag e no current spik es occur, the transistor g roup control rate and reconnection time can be
set in this parameter. It is because in some cases capacitors are ov ercharg ed while disconnecting
thyristor switch and therefore fast-discharg e resistors must be installed. T he rate of switching and
reconnection time should be then match fast-discharg e resistor power rating .
N , where
T he v alue of the parameter is displayed asR-N.
R.......... number of reg ulation (control) interv entions per second
N.
N... reconnection delay time in seconds
T he control rate ( = number of interv entions per second ) can be set in rang e 1 throug h 5
interv entions per second. T he reconection delay time can be set according table 7.
tab le 7: T ransistor g rou p c ontrol rate and re c onne c tion tim e se tting
C ontrol R ate
R econnection D elay T ime
1
1 - 2 - 5 - 10
[ control interv entions per second ]
[ seconds ]
2
0 ,5 - 1 - 2 - 5 - 10
3
0 ,3 - 0 ,6 - 1 - 2 - 5 - 10
4
0 ,2 - 0 ,5 - 0 ,7 - 1 - 2 - 5 - 10
5
0 ,2 - 0 ,4 - 0 ,6 - 0 ,8 - 1 - 2 - 5 - 10
W hen shipped and after controller initialisation, the v alues 1-10 are set, that means one control
interv ention per second and ten seconds reconnection delay time.
4.2.17 P a ra m e te r 3 0 – A la rm S e ttin g
N ov ar line controllers feature two alarm type functions that are independent of each other:
• alarm indication function
• alarm actuation function
4.2.17.1 Al
arm I
ndi
cat
i
onFunct
i
on
In order to indicate nonstandard reg ulation conditions the instruments feature an Alarm L E D on the
front panel and an A larm relay nonpotential contact accessible at a connector on the rear panel.
28
Novar 314 RS
K M B s y s te m s
Indication of a nonstandard condition occurrence shows as flashing Alarm L E D and closed A larm
relay contact. In standard condition this L E D is dark and the relay contact op en.
N onstandard condition m entioned ab ov e, at which alarm should b e indicated, can b e sp ecified in the
side b ranch of p aram eter 30 . A ny of the eight conditions shown in tab le 8 can start the alarm
indication.
A larm indication from any nonstandard condition can b e selected b y editing such a condition in the
side b ranch of p aram eter 30 . T he settings can tak e 4 different v alues:
01-0 ... condition 1 (undercurrent) is not signalled (neither does it trigger actuation –
1. 01
see descrip tion further b elow)
2. 0101-S ... condition 1 (undercurrent) is signalled (b ut it does not trigger actuation)
3. 0101-A ... condition 1 (undercurrent) is not signalled (b ut it triggers actuation)
4. 0101-2 ... condition 1 (undercurrent) is signalled (and it triggers actuation)
A larm signaling can b e set for any other condition in the sam e m anner as shown for condition 1 in the
ab ov e ex am p le. F or som e conditions alarm actuation can b e sp ecified b esides indication (see
descrip tion further b elow).
table 8 : A larm – in d ic atio n
#
condition
descrip tion
m inim um delay of
activ ation / deact.
1 undercurrent
current at m etering current transform er’s secondary 5 / 5 seconds
under m inim um m easurem ent current
2 ov ercurrent
current at m etering current transform er’s secondary 5 / 5 seconds
ov er nom inal v alue setting (5 A / 1 A )
3 com p ensation
error
p ower factor out of range 0 .9lag ÷ 1.0 0 – work ing
from load 10 % up
15 / 7 .5 m inutes
4 v o lta g e fa ilure
m easurem ent v oltage not detected
5 harm onic
distortion
T H D lim it setting ex ceeded – work ing from load
10 % up
5 / 5 seconds
5 / 2.5 m inutes
6 num b er of
switching
op erations
ex ceeded
num b er of connecting and disconnecting a section
has ex ceeded a lim it setting
im m ediately
8 feeding b ack
p ower flow from ap p liance to source detected
9 s ectio n erro r
p erm anently wrong relay group section v alue
detected in regulation (usually section failure)
5 / 2.5 m inutes
N ote: B old ty p e conditions ab ov e are set b y default.
5 connections +
5 disconnections
A larm indication can b e triggered b y one or a com b ination of som e conditions set. A larm indication will
start after the condition lasts continuously for the tim e sp ecified in tab le 8 as 1st v alue ; 2n d v alue
(b ehind „/“) defines elap se tim e to stop alarm indication after the condition would disap p ear. T he
condition that has triggered alarm indication can then b e check ed in alarm status (in the side b ranch of
p aram eter 40 ).
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K M B s y s te m s
Unlike the alarm actuation function described below, the alarm indication function setting has no effect
on the instrument’s regulation p rocess.
B esides conditions mentioned abov e, alarm indication will also be triggered by a condition when at
least one nonz ero cap acitiv e section has not been sp ecified (when entering sectional currents
manually ) or identified (in automatic section detection p rocess). In this condition flashing C=0 is
shown on the numeric disp lay .
4.2.17.2 Al
arm Act
uat
i
onFunct
i
on
Indep endently of the alarm indication function y ou can set alarm actuation function for some of the
nonstandard conditions. A ctuation means interv ention in the regulation p rocess, esp ecially interrup tion
of controller’s op eration, usually with subseq uent disconnection of regulation sections. S ee list of
actuations in table 9.
If y ou req uire that the controller resp ond to occurrence of an abov e nonstandard condition with an
A or 2
actuation shown, y ou hav e to set the condition of choice in the side branch of p arameter 3 0 toA
(see p rev ious chap ter).
C onditions not shown in this table do not trigger any actuations, hence they can not be set this way
either.
table 9 : A larm – ac tu atio n
#
condition
descrip tion
minimum delay of
activ ation / deact.
actuation
1 undercurrent
current at metering current
transformer’s secondary
under minimum
measurement current
10 / 5 seconds
disconnection of all
sections ex cep t fix ed
ones
4 v o lta g e fa ilure
measurement v oltage not
detected
5 / 5 seconds
disconnection of all
sections ex cep t fix ed
ones
5 harmonic
distortion
T H D limit setting ex ceeded
– working from load 10 %
up
5 / 2 .5 minutes
disconnection of all
outp ut (including fix ed
ones)
8 feeding back
p ower flow from ap p liance
to source detected
5 / 2 .5 minutes
disconnection of all
sections ex cep t fix ed
ones
9 s ectio n erro r
p ermanently wrong relay
group section v alue
detected in regulation
(usually section failure)
5 connections +
5 disconnections
section disablement
(see descrip tion in
chap ter below)
N ote: B old ty p e conditions abov e are set by default.
4.2.18 P a ra m e te rs 3 1, 3 2 – C u rre n t T o ta l H a rm o n ic D is to rtio n L im it a n d N u m b e r o f
S w itc h in g O p e ra tio n s L im it fo r A la rm In d ic a tio n o r A c tu a tio n
If alarm indication or actuation function is set from condition 5 (current harmonic distortion) or from
condition 6 (number of switching op erations ex ceeded), y ou also hav e to sp ecify the T H D limit lev el or
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Novar 314 RS
K M B s y s te m s
limit number of connections and disconnection of a section from which the indication or actuation
should be trig g ered.
T he current T H D (total harmonic distortion, p arameter 3 1 ) is shown as p ercentag e and it can be set in
the rang e from 0 .5 to 3 0 0 % .
N umber of switching op erations limit (p arameter 3 2 ) is shown as thousands of switching op erations
and it can be set in the rang e from 1 0 thousand to 2 million switching op erations.
If neither indication nor actuation function from either of the two conditions has been set, the
corresp onding limit v alue is not shown.
4.2.19 P a ra m e te rs 3 3 , 3 4, 3 5 – In stru m e n t A d d re ss, C o m m u n ic a tio n R a te a n d
C o m m u n ic a tio n P ro to c o l
T hese p arameters are only imp ortant in instruments featuring remote communication interface. T hey
are not shown in other instruments.
W hen setting up remote communication y ou hav e to set the instrument’s address (p arameter 3 3 ) to
one of the v alues from 1 to 2 5 3 (addresses 0 , 2 5 4 , and 2 5 5 are dedicated to sp ecial functions – do not
use). If a number of instruments are connected to the communication line, each instrument must hav e
a different address.
T he communication rate (p arameter 3 4 ) can be set to one of the v alues: 6 0 0 , 1 2 0 0 , 2 4 0 0 , 4 80 0 ,
9 6 0 0 B d.
S tandard communication p rog ram uses p rop rietary communication p rotocol „K M B “. T he p rotocol is set
as standard at p arameter 3 5 as P0 . F or easier imp lementation to user ap p lications, the M odbusR T U p rotocol can be used as well. T he p rotocol can be set as P1N / P1E
P1E / P1O ( non p arity /
ev en p arity / odd p arity ). D etailed descrip tion of both p rotocols is av ailable at manufacturer on
req uest.
T he v alues set will be k ep t ev en on controller’s initialisation (see descrip tion further below).
4.2.20 P a ra m e te r 40 – A la rm S ta tu s
If indication function from a nonstandard condition is set (see descrip tion of p arameter 3 0 – alarm
setting ), y ou can v iew alarm current status in the side branch of p arameter 4 0 .
Indication can be trig g ered by any of the nine conditions shown in table 8. P arameter 4 0 is used for
detailed identification of condition that has trig g ered alarm indication. A larm indication function has
been trig g ered by those conditions whose v alue is 1.
4.2.21 P a ra m e te rs 41, 42, 43 – E x tre m e M a in s P a ra m e te rs R e c o rd e d
In order to monitor and analy se the reg ulation p rocess, the controller records the following ex treme
mains p arameters:
• minimum p ower factor (p arameter 4 1 )
• max imum lev el of total harmonic distortion (p arameter 4 2 )
• max imum lev el of selected harmonic comp onents (3 rd, 5 th , 7 th , 1 1 th , 1 3 th , 1 7 th – side branch
of p arameter 4 3 )
T hese v alues are not sp ecified in a controller when ship p ed so when v iewing the p arameters y ou will
se ----. A fter the reg ulation p rocess has started, the controller monitors the lev els of the abov e
mentioned q uantities and if they reach a lev el which is lower or hig her than a lev el so far recorded and
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K M B s y s te m s
such a condition holds for at least 1 minute, it will overwrite the last recorded extreme value with the
newly measured value.
T he controller carries this monitoring out only while the reg ulation p rocess is in p rog ress and while a
condition is met of the total load in the mains at least 10 % of the nominal load (in accordance with the
metering current transformer’s nominal p rimary value). If load is low, the values of the ab ove
mentioned q uantities can neither b e measured p recisely , nor are they imp ortant.
E ach extreme level recorded can b e reset b y editing it.
4.2.22 P a ra m e te r
D is c o n n e c tio n s
44 – N u m b e r
o f R e la y
G ro u p
S e c tio n
C o n n e c tio n s
and
In the side b ranch of this p arameter y ou can check the numb er of switching op erations for each
section of relay g roup . T he numb er is shown in thousands. If the numb er of switching op erations is
low, the value is shown with a decimal p oint so that y ou can view it at accuracy down to units, tens or
hundreds of switching op erations.
T he numb er of section connections and disconnections is k ep t in the controller’s nonb ack ed up
memory and stored in b ack ed up memory ab out every eig ht hours where it is maintained even on
p ower sup p ly outag e. T he numb er of switching op erations from the last eig ht–hour interval is lost on
voltag e failure or controller initialisation.
If a section’s circuit b reak er is rep laced, the relevant outp ut’s switching op eration counter can b e reset
b y editing it.
N umb er of switching op erations of transistor g roup sections is not recorded.
4.2.23 P a ra m e te r 45 – T y p e o f C o n tro lle r E rro r
T he controller carries out self-diag nostics in reg ular intervals during reg ulation. Y ou can check the
diag nostics’ results in this p arameter.
It shows E–00in errorless condition. If the value is nonz ero, the controller has identified an error. S uch
a condition does not necessarily mean the controller is out of op eration — in such a case the
controller sup p lier must b e contacted and told ab out the value of the ty p e of error shown. U sing this
value a sp ecialist will then decide ab out the method of solving the p rob lem.
4.2.24 P a ra m e te r 46 – R e la y G ro u p R e g u la tio n T im e
W hen op timiz ing controller p arameter setting s, it is sometimes req uired to monitor reg ulation time of
relay g roup in detail. Y ou can view the reg ulation time’s current value in this p arameter – it is shown in
seconds as countdown to the next reg ulation intervention.
F or monitoring the reg ulation time to mak e sense, the reg ulation function must not b e halted —
therefore the reg ulation function is enab led while viewing this very p arameter. A nother difference while
viewing this p arameter is automatic jump b ack to disp lay of values measured; this automatic jump
tak es only p lace after viewing the reg ulation time for ab out 5 minutes from the last b utton p ressing (it
tak es p lace as soon as after ab out 3 0 seconds while viewing any other p arameters).
4.2.25 P a ra m e te r 47 – N u m b e r o f R e la y G ro u p S e c tio n S w itc h -O n T im e
In the side b ranch of this p arameter y ou can check the time that each section of relay g roup was
switched-on since last value clearing . T he numb er is shown in thousands of hours. If the numb er of
switch-on time is low, y ou can view it at accuracy down to units of hours. M aximum value is 13 0
thousands.
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K M B s y s te m s
The value of section switch-on tim e is k ep t in the controller’s nonb ack ed up m em ory and stored in
b ack ed up m em ory ab out every eig ht hours where it is m aintained even on p ower sup p ly outag e. The
switch-on tim e from the last eig ht–hour interval is lost on voltag e failure or controller initialisation.
If a section’s cap acitor is rep laced the relevant outp ut’s switch-on tim e counter can b e reset b y ed iting
it.
S witch-on tim e of transistor g roup sections is not record ed .
4.3 Rel
ayGroupSect
i
onVal
ueAccuri
zat
i
on
If the controller is set to autom atic sectional current d etection, it will carry out the autom atic d etection
p rocess after every p ower sup p ly outag e or initialisation.
A fter successful com p letion of the autom atic recog nition p rocess it record s all the currents m easured
and start reg ulation p rocess. A ll currents m easured are tag g ed as “not y et p recise”. A sections the
value of which is not y et p recise can b e id entified b y slowly flashing d ecim al p oint (as op p osed to fast
flashing d ecim al p oint to id entify a d isab led section – see d escrip tion further b elow).
The controller m easures the sections of relay g roup continually within the reg ulation p rocess as they
are connected and d isconnected . It evaluates the averag e value m easured for each not-y et-p recise
section and , when having received ab out 1 0 0 values, it rewrites the orig inal section value, which was
ob tained in autom atic d etection, with it. A t the sam e tim e it tag s the section as “p recise” and stop s
further accuriz ation of this section.
This way p ossib le inaccuracies in autom atic d etection are rem oved .
If the sections’ values are set m anually (using the switching p rog ram and sm allest cap acitor current or
b y ed iting section value in p aram eter 2 5 ), no sub seq uent accuriz ation tak es p lace. N either is
accuriz ation of chok e sections, if p resent, carried out.
If autom atic sectional current d etection is enab led , the accuriz ation p rocess can b e autom atically
started any tim e d uring the reg ulation p rocess as well. If the controller d etects that a com p ensation
cap acitor has rep eated ly b een showing a value d ifferent from that m easured in autom atic d etection
and the d ifference is not in ord er of m ag nitud e (that is in the interval from a half to d oub le value) from
the value record ed in the controller, the accuriz ation p rocess for such a section will start. Thus effects
of chang es in com p ensation cap acitor values, for ex am p le as a conseq uence of the form ing p rocess
after installation or d ue to ag ing etc., can b e elim inated .
A ccuriz ation of transistor g roup sections is not p erform ed .
4.4 Faul
t
yRel
ayGroupSect
i
onI
ndi
cat
i
onandDi
sabl
ement
In the alarm setting (p aram eter 3 0 ) y ou can choose alarm ind ication or actuation function from faulty
relay g roup section d etection (section error).
If at least one of these functions has b een set, the controller continually check s reactive current
chang es in the m ains d uring the reg ulation p rocess as the sections of relay g roup are connected and
d isconnected and com p ares them with each section’s current record ed . If connecting and
d isconnecting a section d oes not rep eated ly result in ad eq uate chang e in reactive current in the m ains
(or chang e in reactive current m easured is very d ifferent from the cap acitor’s value record ed ), the
controller tag s such a section as faulty and , if a relevant alarm actuation function has b een set, it will
d isab le the section and stop using it in further reg ulation tem p orarily .
A larm ind ication function can b e used for section d isab lem ent ind ication (see d escrip tion of p aram eter
3 0 ). If alarm actuation function is not set, the controller will only tag the faulty section, trig g er alarm
ind ication, b ut will k eep using the section in reg ulation. A p articular faulty section can b e id entified b y
33
Novar 314 RS
K M B s y s te m s
fast flashing (about three times a second) decimal p oint in the section v alue disp lay in the side branch
of p arameter 2 5 (as op p osed to slow ly flashing decimal p oint identify ing not-y et-p recise section – see
descrip tion in chap ter abov e).
A section that has been temp orarily disabled is p eriodically , about ev ery fiv e day s, check ed by
including it in regulation for one sw itching op eration. If the controller detects a relev ant resp onse in the
mains (w ithin adeq uate allow ance) to connecting the section, it w ill include the section in the
regulation p rocess again and, if automatic section detection is set, it w ill run accuriz ation p rocess for it
too. T his w ay , for ex amp le, a rep aired section is automatically included in regulation (after rep lacing
section fuse, for instance).
If the controller does not p ut a disabled section back to regulation automatically , such reinclusion in
the regulation p rocess w ill tak e p lace in the follow ing situations:
• p ow er sup p ly interrup tion or controller initialisation (see descrip tion further below )
• editing the section’s v alue or one of p arameters 2 1 through 2 3 (sw itching p rogram,
smallest cap acitor v alue, number of cap acitors).
• automatic sectional current detection p rocess
F aulty section indication and disablement can only be set for cap acitiv e sections of relay group –
neither transistor group sections nor chok e sections, if p resent, are check ed.
4.5 Regul
at
i
onbyChoke
T he instrument allow s connecting up to 7 chok es to relay group outp uts for mains decomp ensation.
R egulation by chok e is conditioned by regulation by chok e p ow er factor limit v alue setting (p arameter
-.-- show n), regulation by
2 7 ) w ithin a range from 0 .8 lag to 0 .9 lead. If this p arameter is not defined (chok e does not tak e p lace (if chok es are av ailable at some of the outp uts, these outp uts are
p ermanently disconnected).
If regulation by chok e p ow er factor limit v alue is set to a v alid setting, a chok e is connected in the
follow ing situation:
• controller has disconnected all cap acitiv e sections
• p ow er factor is still more cap acitiv e (leading) than that req uired and also more cap acitiv e than
the regulation by chok e p ow er factor limit v alue set
• this condition has lasted for fiv e times longer than the ov ercomp ensation regulation time
(p arameters 3 , 9 )
• a chok e is av ailable at least at one outp ut and it has such a v alue that after its connection it w ill
be p ossible to regulate the p ow er factor to desired v alue using a combination of cap acitiv e
sections, that is large undercomp ensation w ill not occur after its connection
If a number of chok es are av ailable for the controller, the most suitable one, dep ending on their
v alues, is connected, and another one is connected if the abov e described situation lasts for another
fiv e times longer than ov ercomp ensation regulation time set.
If a combination of chok es are connected and undercomp ensation occurs, such a number of chok es
are disconnected after a normal undercomp ensation regulation time has elap sed (p arameters 2 , 8 ),
w hich p rev ents ov ercomp ensation.
D ecomp ensation chok es can be connected to relay group outp uts 2 and higher. O utp ut 1 is dedicated
to cap acitiv e section only .
34
Novar 314 RS
K M B s y s te m s
The automatic section detection process can also be used for determining values of chokes
connected, by the regulation by choke limit pow er factor (parameter 2 7 ) must be set to a valid value
-.-- show n), connected chokes w ill not be
prior to this. If this parameters has not been defined (detected.
A fter controller initialisation parameter 2 7 is not defined so regulation by choke is disabled by default.
4.6 Regul
at
i
onI
nt
errupt
i
on
If the controller is in the regulation mode (not in the Manual mode), one of the values measured, COS,
A (Ieff), THD, is show n on the numeric display and the controller carries out regulation process based
on the values measured and parameter settings.
If y ou sw itch to parameter display by pressing button P, the regulation process w ill be interrupted.
O utput transistors and relay s w ill stay in the state they w ere at the moment of sw itching the display
mode. The controller assumes the operator w ants to check or change some of the parameters and it
does not change the state of outputs until this is finished (provided no nonstandard conditions, such
as measurement voltage failure, have occurred, of course). A t the moment the operator sw itches back
to correspondent display mode by pressing button M (measurement), the instrument continues the
regulation process.
If the operator did not sw itch back to the Measurementdisplay mode, the controller w ould sw itch to
the mode automatically in about thirty seconds from the last button being pressed.
A n ex ception is show ing regulation time (parameter 4 6 ) – in this case the regulation interrupted w ill
resume for operator to be able to check control process operation. A utomatic sw itch to the
instantaneous values display w ill occur after about 5 minutes.
A nalogously to regulation interruption, automatic connection or sectional current detection process w ill
be interrupted by the above mentioned procedure if in progress. It, how ever, starts over from the
beginning again w hen resumed.
4.7 ManualMode
W hen installing or testing the controller it may sometimes be req uired to check the function of each
compensation section or it is necessary to put the automatic regulation process out of operation for a
longer time.
In such situations y ou can sw itch the controller to a mode in w hich it only carries out measurements
and display s the values. Y ou can sw itch to this mode by pressing buttons M and P and holding them
dow n simultaneously for about 6 seconds (until the Manual L E D starts flashing). Y ou can sw itch back
to the regulation mode analogously .
Y ou can not view or edit the controller’s parameters in the Manual mode – y ou can only sw itch on or
off each controller’s output.
O n sw itching the regulator to the Manual mode, the outputs stay in the state they w ere in during the
regulation process before sw itching over the modes. Y ou can then change the states of the outputs
manually – after pressing button P the state of a correspondent output is show n (for ex ample 01–
01–0,
w hich means output 1 is off – contacts open) and y ou can move through them using buttons ↑, ↓ and
edit them analogously w ith the instruments’ parameters. The outputs’ states change w hile being edited
w hile respecting the reconnection delay time set.
If the controller is in the Manual mode and there is a measurement voltage failure, the Manual mode
is resumed on pow er recovery . A t this all outputs that w ere on before the failure get sw itched on one
by one again (the states of outputs are remembered).
35
Novar 314 RS
K M B s y s te m s
4.8 ManualI
nt
ervent
i
oni
nRegul
at
i
onProcess
In order to be able to check the controller’s res p ons e to a reg u lation dev iation chang e it is p os s ible to
connect or dis connect a s ection by op erator’s m anu al interv ention, not only in the Manual m ode bu t
als o w ithin the reg u lation p roces s .
W hile holding bu tton M p res s ed dow n y ou can connect or dis connect s ection u s ing bu ttons ↑ and ↓
and w atch the controller’s res p ons e to the chang e of condition. E ach bu tton p res s connects or
dis connects one reg u lation s ection of relay g rou p , alw ay s the one w ith the s m alles t v alu e.
R econnection delay tim e is res p ected w hen connecting .
If the controller is left in the reg u lation m ode, it w ill carry ou t ev alu ation and reg u lation interv ention
after the reg u lation tim e has elap s ed thu s p u tting the u nbalanced conditions in the m ains back to a
com p ens ated s tate.
In Manual m ode, this fu nction is activ e for both relay and trans is tor g rou p s ections .
4.9 Cont
rol
l
erI
ni
t
i
al
i
sat
i
on
In s om e s itu ations it m ay be neces s ary to p u t the controller back in its defau lt s etting in w hich it is
s hip p ed. Y ou can do this u s ing controller initialisation. A fter initialis ation has been ru n, the initial tes t
s tarts too, that m eans the controller carries ou t all the op erations as if the p ow er s u p p ly v oltag e is
introdu ced.
T he controller’s p aram eters are s et to the v alu es s how n as defau lt in table 3 on initialis ation, ex cep t
the follow ing p aram eters :
• m etering cu rrent trans form er nom inal s econdary v alu e (1 3)
• ty p e of m eas u rem ent v oltag e (p has e or line, 1 5 )
• nu m ber of cap acitors of trans is tor g rou p (2 8 )
• ins tru m ent addres s and com m u nication rate in ins tru m ents w ith com m u nication interface
(33, 34 )
T hes e p aram eters rem ain u nchang ed in the v alu es s et before initialis ation.
V alu es of p aram eters 4 1 (m inim u m p ow er factor recorded), 4 2 (m ax im u m T H D recorded), and 4 3
(m ax im harm onic v alu es ) w ill be s et as u ndefined on initialis ation. T he cou nter of s w itching op erations
(p aram eter 4 4 ) is not affected by initialis ation.
Y ou can s tart the controller initialis ation by p res s ing bu ttons M, P, and ↓ s im u ltaneou s ly and holding
them dow n for abou t 6 s econds . T he controller w ill firs t dis connect all s ections connected and ru n the
initial tes t – that is w hen y ou can releas e the bu ttons . T hen it w ill carry ou t initialis ation its elf and s ince
p aram eter 1 6 v alu e is not defined, it w ill s tart the au tom atic connection detection p roces s .
Warning!!! T he Manual m ode is term inated on initialis ation if activ e!!! T he controller is alw ay s s et to
the reg u lation m ode after initialis ation!!!
36
Novar 314 RS
K M B s y s te m s
4.10 SummaryofTextMessages
In the measurement value display mode a text messag e may appear in some situations instead of the
instantaneous pow er fac tor value. tab le 1 0 show s a list of these messag es.
table 1 0 : s u m m ary o f tex t m es s ag es
messag e
meaning
c omment
AHOY initial seq uenc e after pow er up or initialisation
TEST
c ontroller c arries out selfdiag nostic s
N314 - type of c ontroller
1.
1
- firmw are version
U=PN - measurement voltag e type set (phase, phaseneutral)
parameter 1 5
I
=5A
- metering c urrent transformer nominal sec ondary
value set
T=0
U=0
- numb er of c apac itors of transistor g roup
parameter 2 8
measurement voltag e not present or its fundamental c ontroller in w aiting mode
harmonic c omponent low er than minimum value
I
=0
measurement c urrent ab sent or low er than minimum c ontroller in w aiting mode
value
APXX
P=0
ACAC
-X
C=0
parameter 1 3
automatic c onnec tion detec tion proc ess in prog ress
proc ess c an have 1 to 7 steps
automatic c onnec tion detec tion proc ess has failed
and method of c onnec tion of measurement voltag e
and c urrent (parameter 1 6 ) is not defined
automatic c onnec tion detec tion
proc ess w ill run ag ain in ab out 1 5
minutes automatic ally or
parameter 1 6 value c an b e
entered manually
automatic sec tional c urrent rec og nition proc ess in
prog ress
proc ess c an have 3 or 6 steps;
ab out 3 0 -sec ond dw ell after three
steps
no c apac itors have b een suc c essfully detec ted in
automatic sec tion rec og nition proc ess or, in manual
sec tion value spec ific ation mode (parameter 2 0 ),
parameters 2 1 throug h 2 6 have not b een set
properly or all c apac itive sec tions have b een
automatic ally disab led b ec ause of error (parameter
2 5 ) or they are set as fixed (parameter 2 6 )
if automatic sec tion rec og nition
proc ess is set, it w ill b e
automatic ally repeated in ab out
1 5 minutes or you c an set values
of parameters 2 1 throug h 2 6
manually
37
Novar 314 RS
K M B s y s te m s
Novar 314RS - installation, low voltage measurement
5. W irin g E x a m p le s
38
Novar 314 RS
Novar 314 RS - installation, high voltage measurement
39
K M B s y s te m s
Novar 314 RS
K M B s y s te m s
NOVAR-206 214 / 232 485
Výr.č./verze.:
/
Datum výroby :
/
Nap.: 230 V~50/60 Hz Přík.: 10VA
IP 4X Made in Czech Republic
1
ALARM
2
3
4
5
6
7
NOVAR-206
40
8
9
10 11 12 13 14
NOVAR-214
Novar 314 RS
K M B s y s te m s
6. T e c h n ic a l S p e c ific a tio n s :
a d ju s ta b le p a ra m e te rs
ta rg e t p o w e r fa c to r
re la y g ro u p s w itc h in g tim e (m a x im u m v a lu e ,
d e p e n d s o n re g u la tio n d e v ia tio n )
re la y g ro u p d e la y tim e o n re c o n n e c tio n
tra n s is to r g ro u p c o n tro l ra te
tra n s is to r g ro u p d e la y tim e o n re c o n n e c tio n
s m a lle s t c a p a c ito r c u rre n t (C /k v a lu e c a lc u la te d
fo r m e te rin g c u rre n t tra n s fo rm e r p rim a ry s id e )
re g u la tio n b y c h o k e lim it p o w e r fa c to r
m e th o d o f s e ttin g c o m p e n s a tio n s e c tio n v a lu e s
m e th o d o f s e ttin g m e th o d o f c o n n e c tio n
0 .80 la g to 0 .9 0 le a d
5 to 1 ,2 0 0 s e c o n d s
5 to 1 ,2 0 0 s e c o n d s
1 to 5 in te rv e n tio n s p e r s e c o n d
0 .2 to 1 0 s e c o n d s
(0 .0 1 ÷ 2 A ) x m e te rin g c u rre n t
tra n s fo rm e r ra tio
0 .80 la g to 0 .9 0 le a d
a u to m a tic o r m a n u a l
a u to m a tic o r m a n u a l
m e a s u rin g in p u ts
m e a s u re m e n t v o lta g e (g a lv a n ic -is o la te d )
v o lta g e in p u t im p e d a n c e
m e a s u re m e n t c u rre n t (g a lv a n ic -is o la te d )
c u rre n t in p u t s e ria l im p e d a n c e
c u rre n t m e a s u re m e n t a c c u ra c y (e ffe c tiv e v a lu e
a n d 1 st h a rm o n ic )
c u rre n t h a rm o n ic c o m p o n e n t a n d T H D
m e a s u re m e n t a c c u ra c y
1 0 0 to 69 0 V A C + 1 0 / –2 0 % ,
5 0 / 60 H z
> 200 kΩ
0 .0 1 to 7 .5 A
< 10 m Ω
± 1 % ± 0 .0 1 A
± 10 %
tra n s is to r o u tp u t g ro u p
n u m b e r o f o u tp u ts in tra n s is to r s e c tio n
6
o u tp u t tra n s is to r lo a d c a p a c ity
m a x im u m 3 0 V D C / 5 0 m A
re la y o u tp u t g ro u p
n u m b e r o f o u tp u ts in re la y s e c tio n
8
o u tp u t re la y lo a d c a p a c ity
250 V A C /4 A
41
Novar 314 RS
K M B s y s te m s
o th e r o u tp u ts , p o w e r s u p p ly , in s u la tio n
alarm relay load capacity
s econ d meterin g rate in pu t (g alv an ic-is olated)
in pu t impedan ce
pas s iv e s tate v oltag e ran g e
activ e s tate v oltag e ran g e
pow er s u pply
25 0 V A C / 4 A
in pu t pow er
in s u lation s tren g th (t = 1 min u te)
1. b etw een in s tru men t’s in tern al circu itry
an d pow er s u pply, meas u remen t
v oltag e, an d meas u remen t cu rren t
in pu ts
2. b etw een in tern al circu itry an d ou tpu ts
3 . b etw een in s tru men t’s in tern al circu itry
an d remote commu n ication
in pu t/ou tpu t
in s tallation ov erv oltag e categ ory
re m o te c o m m u n ic a tio n
in terface
tran s mis s ion rate
max imu m n u mb er of in s tru men ts on on e
commu n ication lin e
max imu m dis tan ce b etw een tw o n odes
o p e ra tin g c o n d itio n s
operatin g en v iron men t
operatin g temperatu re
relativ e h u midity
EM C
emis s ion
immu n ity
emis s ion & immu n ity
> 20 0 k Ω
0 to 5 0 V A C
8 0 to 28 0 V A C
23 0 or 115 V A C + 10 / – 20 % ,
5 0 /60 H z
max imu m 10 V A
5 ,25 0 V D C
3 ,25 0 V D C
7 20 V D C
II as s pecified in E N 610 10 -1
R S -23 2 / R S -4 8 5 , g alv an ic-is olated
9 ,60 0 B au d
1/32
3 0 m / 1,20 0 m
clas s C 1 as s pecified in IE C 65 4 -1
–4 0 ° ÷ + 60 ° C
5 to 10 0 %
E N 5 0 0 8 1-2
E N 5 5 0 11, clas s A
E N 5 5 0 22 , clas s A
(n ot for h ome u s e)
E N 610 0 0 -6-2
E N 613 26-1
42
Novar 314 RS
K M B s y s te m s
p h y s ic a l fe a tu re s
sealing:
- fro nt p anel
- rear p anel
d im ensio ns:
m ass
- fro nt p anel
- installatio n d ep th
IP 4 0 (o r IP 5 4 )
IP 2 0
144 x 144 m m
80 m m
m ax im u m 1 .0 k g
43
Novar 314 RS
K M B s y s te m s
7. M A IN T E N A N C E , T R O U B L E S H O O T IN G
Novar line power factor controllers do not req u ire any m aintenance with in th eir operation. F or reliab le
operation y ou only h ave to com ply with th e operating conditions specified and prevent m ech anical
dam ag e to th e instru m ent.
T h e controller’s power su pply is one-pole protected with a m ains fu se rated T 0 .1 A (2 3 0 V A C ty pe) or
T 0 .2 A (1 1 5 V A C ty pe). T h e fu se is only accessib le after b ack disassem b ly and only th e controller
su pplier’s q u alified personnel m ay th u s carry ou t th is action.
In case of th e produ ct’s b reak down, y ou h ave to retu rn it to th e su pplier at th eir address.
su pplier:
m anu factu rer:
K M B sy stem s, s.r.o.
5 5 9 D r. M . H orá k ové
4 6 0 0 6 , L ib erec 7
C z ech R epu b lic
web site: www.k m b .cz
T h e produ ct m u st b e pack ed properly to prevent dam ag e in transit. D escription of th e prob lem or its
sy m ptom s m u st b e sent along with th e produ ct. If warranty repair is claim ed, th e warranty certificate
m u st b e sent in too. If repair b ey ond warranty is req u ired, a written order m u st b e inclu ded.
W a rra n ty C e rtific a te
W arranty period of 2 4 m onth s from th e date of pu rch ase, m ax im u m 3 0 m onth s from th e date of
dispatch from m anu factu rer’s wareh ou se h owever, is provided for th e instru m ent. P rob lem s in th e
warranty period, provab ly b ecau se of fau lty work m ansh ip, desig n or inconvenient m aterial, will b e
repaired free of ch arg e b y th e m anu factu rer or an au th oriz ed servicing org aniz ation.
T h e warranty ceases even with in th e warranty period if th e u ser m ak es u nau th oriz ed m odifications or
ch ang es to th e instru m ent, connects it to ou t-of-rang e q u antities, if th e instru m ent g ot dam ag ed in ou tof-specs falls or b y im proper h andling or if it h as b een operated in contradiction with th e tech nical
specifications presented.
ty pe of produ ct: NOVAR.............................
serial nu m b er ..............................................
date of dispatch : ...........................................
final q u ality inspection: ................................
m anu factu rer’s seal:
date of pu rch ase: ...............................................
su pplier’s seal:
44