The UVR500 voltage
regulator is designed as a
universal voltage regulator for
replacement of most voltage
regulators found in the
international generator
industry. The installer can
select from a full range of
input and output voltages
limited only by the system
amperage. Optional static
exciter modules can be used
with this regulator to increase
the output amperage up to
300 amps. The UVR500
replaces all previous models of
Power-Tronics’ regulators
and can be altered to be used
as an ac phase control in
applications such as heating
controls, synchronous motors
and eddy current clutches.
UVR500 Universal
Voltage Regulator
Input voltage
Output voltage
Maximum output
Hz
Voltage regulation
Physical size
Total weight
100 to 250 vac
.75 to 210 vdc
5 adc (fused)
50/60
Less than 1%
6 x 4.65 x 1.10 inches
7 oz.
Power-Tronics, Inc.
M a n uf a c turer of Univ ers a l V olt a g e Re g ul a t ors a n d St a ti c Ex c it ers
K e rrvill e , T e x a s USA
U VR500 V o lt a g e R e g ul a t or c o n n e c t e d 1 / 2 w a v e f or us e
with g e n e r a t or fi e l ds r e q uirin g l e ss th a n 75 v d c full lo a d .
This c o nfig ur a tio n is a lso us e d w h e n th e U V R500 is us e d
with SE350, SE900, SE1500 A a n d SE3000 A St a tic Ex c it e rs.
-
Wh e n c onn e cte d to
120v a c , m a k e sur e th a t
th e n e utr a l is o n
t e rmin a l # 2.
Ex c it e r Fi e l d
+
100k
2
120 / 240 v a c
7
3
1
Fro m A C
G e n e r a t or
St a t or
5
8
It is n o t n e c e ss a ry t o
us e e xt e rn a l v olt a g e
a d just m e nt. D o n o t
ju m p e r 7&8 if n o t
us e d .
Ru n /Id l e
Swit c h
O p e r a tin g
In d i c a t or
lig ht
M a in V olt a g e A d just m e nt
Turn C W t o in c r e a s e
v o lt a g e
St a bility A djust m e nt
Turn C W f or st a b ility
U V R500 V olt a g e R e g ul a t or c o n n e c t e d Full W a v e f or us e with
g e n e r a t or fi e l ds r e q uirin g m or e th a n 75 v d c full lo a d . This
c o nfig ur a tio n is a lso us e d w h e n th e U V R500 is us e d with SE450
a n d SE1500B St a ti c Ex c it e rs.
Ex c it e r Fi e l d
Wh e n c onn e cte d to
120v a c , m a k e sur e th a t
th e n e utr a l is o n
t e rmin a l # 2.
-
+
100k
4
3
120 / 240 v a c
2
7
Fro m A C
G e n e r a t or
St a t or
1
Ru n /Id l e
Swit c h
8
It is n o t n e c e ss a ry t o
us e e xt e rn a l v o lt a g e
a d just m e nt. D o n o t
ju m p e r 7&8 if n o t
us e d .
O p e r a tin g
In d i c a t or
lig ht
M a in v olt a g e a d just m e nt
Turn C W t o in c r e a s e
v o lt a g e
St a bility A djust m e nt
Turn C W f or st a b ility
INSTALLATI O N INSTRU C TI O NS
UVR500 V OLTA GE REGULATOR
Sp e cial note: The UVR500 Volta g e Re gulator sets up
differently than the VR504A and VR505A series volta g e
re gulators. Re a d these instructions b efore installation.
C AUTIO N!
D o n o t us e a d i g it a l m e t e r t o s e t u p a v o lt a g e r e g ul a t or o n a g e n e r a t or.
F a ls e a n d sl o w r e a d in gs c a n r e sult in s e v e r e d a m a g e t o th e r e g ul a t or a n d
g e n e r a t or a s w e ll a s injury t o th e inst a ll e r. By usin g a v a n e ty p e m e t e r, y o u w ill
insur e q ui c k, tru e a n d a c c ur a t e r e a d in gs o f p h a s e c o ntroll e d p o w e r a n d
v olt a g e . O n c e th e u nit is s e t u p , d i g it a l m e t e rs c a n b e us e d a c c ur a t e ly f or a c
v o lt a g e r e a d in g s.
D O N O T h old th e v olt a g e re g ul a tor in y o ur h a n d w hil e p o w er is
a p pli e d to it. D O N O T w ork a ro un d v olt a g e c o ntrol e q uip m e nt
with o ut s a f e ty gl a sses a n d pro t e c tiv e g e a r. D O N O T se t u p th e
v olt a g e re g ul a t or with th e g e n er a t or o n lin e .
1.
S e l e c t r e g ul a t or c o nfig ur a tio n fro m th e s e l e c tio n c h a rt a n d wir e u p th e
r e g ul a t or a s sh o w n in th e p r o p e r sc h e m a ti c f or th a t c o nfig ur a tio n.
2.
Turn th e v o lt a g e a d just m e nt fully c o u nt e r c lo c k wis e or 10 t o 15 turns.
3.
O p e n th e ru n /i d l e swit c h a n d st a rt prim e m o v e r, brin g u p t o r a t e d s p e e d .
4.
Turn o n ru n /i d l e swit c h a n d r a is e o ut p ut v o lt a g e o f g e n e r a t or t o r a t e d
v o lt a g e with th e int e rn a l v o lt a g e a d just m e nt b y turnin g c lo c k wis e (v o lt a g e
m a y b e p ulsin g ).
5.
If th e v o lt a g e is p ulsin g , a d just th e st a b ility a d just m e nt c lo c k wis e u ntil th e
v o lt a g e is st e a d y. As y o u a d just th e st a b ility a d just m e nt c lo c k wis e , th e
v o lt a g e will lo w e r. K e e p th e v o lt a g e a t r a tin g with th e int e rn a l v o lt a g e
a d just m e nt p o t.
6.
Pl a c e g e n e r a t or o n lin e a n d o b s e rv e o p e r a ti o n (if th e v o lt a g e is u nst a b l e
with lo a d , a d just th e st a b ility a d just m e nt furth e r c lo c k wis e u ntil pro b l e m is
c orr e c t e d ).
Sp e cial Notes:
It is n o t n e c ess a ry t o ju m p er t ermin a ls 7&8 w h e n n o t usin g a re m o t e
v olt a g e a djust m e nt. If y o u d o use a re m ot e v olt a g e a djust m e nt,
use a 10 t o 100k p o t r a t e d a t 1 / 2 w a tt. Also use shi e ld e d c a bl e if
th e r e m o t e p o t is furth er th a n 5 f e e t fro m th e r e g ul a t or.
D o n o t pl a c e e x c it er, re m o t e a djust m e nt a n d p o w er l e a ds in a
c o m m o n c a bl e or c o n d uit.
If this u nit is g oin g to b e use d o n a brush ty p e of e x c it er, th e sh u nt
fi e lds m ust b e isol a t e d fro m a ny o th er p a rt of th e g e n er a t or.
UVR500 Bench C he c k Pro c e dures
Test 1
120 v li g h t
b ul b , 25 w
or hi g h e r
120 v a c
fus e d a t
5 a m ps
1
2
3
4
5
6
7
Test 2
1
2
3
4
5
6
7
1.
C o n n e c t u p t e st u nit a s sh o w n in T e st 1.
2.
Turn v o lt a g e a n d st a b ility a d just m e nts
fully c o u nt e r c lo c k wis e ( a p pro xim a t e ly 25
turns).
3.
A p p ly 120 v a c t o th e v o lt a g e r e g ul a t or.
Th e t e st lig ht sh o ul d b e o ff a n d th e
or a n g e in d i c a t or lig ht sh o ul d b e o n.
4.
Turn th e v o lt a g e a d just m e nt c lo c k wis e
u ntil th e t e st lig ht turns fully o n.
5.
Turn th e st a b ility c lo c k wis e u ntil th e t e st
lig ht turns o ff.
6.
R e m o v e v o lt a g e fro m th e r e g ul a t or a n d
r e wir e th e t e st lig ht c o n n e c tio ns t o th e
T e st 2 wirin g c o nfig ur a tio n.
7.
R e p e a t t e stin g a s d o n e fro m st e p 2 thru
st e p 5. Th e r e will b e a d iff e r e n c e in th e
brilli a n c e o f th e t e st lig ht d urin g this t e st.
It will b e 1 / 2 brilli a n c e o f th e first t e st.
8.
Turn th e v o lt a g e a n d st a b ility a d just m e nts
fully c o u nt e r c lo c k wis e a n d r e m o v e
v o lt a g e fro m th e r e g ul a t or.
9.
If th e r e g ul a t or p e rf orm e d a ll o f th e t e sts,
it is g o o d , if it d i d n o t p e rf orm a ll o f th e
t e sts, it is d e f e c tiv e .
8
120 v li g h t
b ul b , 25 w
or hi g h e r
120 v a c
fus e d a t
5 a m ps
Test pro c e dures
8
TROUBLESHOOTING
P O SSIBILITIES
PROBLEMS
N O V O LTA G E
PULSATIN G V OLTA GE
FLICKERIN G V OLTA GE
13. D e f e c tiv e v olt a g e
1. Resid u a l in p ut v olt a g e to
th e v olt a g e re g ul a tor is b e lo w re g ul a tor.
1, 2, 3, 5, 7, 9, 11, 3.5 v a c.
14. S C R or Inv ert er driv e
13 15, 20
e ff e c tin g g e n er a tor w a v e
2. Int ern a l fuse is o p e n or
f orm .
b lo w n.
4, 5, 6, 12, 16
6, 7, 14, 4
HIGH V OLTA GE
6, 7, 8, 9, 12, 13,
17, 18, 20
V O LTA G E DRO P O N LO A D
5, 8, 10, 12 , 16
LO W V O LTA G E
5, 8, 12, 13,
PO OR V OLTA GE REGULATIO N
4, 10, 12, 13, 16
N O V OLTA GE C O NTROL
13, 15, 19, 20
3. O p e n e x c it er fi e ld or
d e f e c tiv e g e n er a tor.
15. Re g ul a tor n e e ds e xt ern a l
fl a shin g c ir c uit.
4. St a b ility a d just m e nt is n o t
pro p erly a djust e d.
16. Isol a tio n tr a nsform er is
t o o sm a ll.
5. O p e n dio d e in e x cit er or
sh ort e d rotor in g e n er a tor.
17. Isol a tio n tr a nsform er is
n e e d e d.
6. Lo ose c o m p o n e nt in
v olt a g e re g ul a tor.
18. Ex cit er fi e lds a re n ot
isol a t e d fro m o th e r c ir c uits.
7. Lo ose wirin g c o n n e c tio ns.
19. In p ut a n d fi e ld c irc uit a re
b e in g f e d b y a c o m m o n
c a ble or c o n d uit.
8. In p ut v olt a g e to re g ul a tor
is t o o lo w .
9. Ex cit er fi e ld is gro un d e d .
10. St a b ility a d just m e nt is s e t
t o o f a r c lo c k wis e .
Mfg. by:
POWER-TRONICS, INC.
Kerrville, Texas USA
11. Excit er fields are re v erse d.
12. Wro n g se l e c tio n of
re g ul a tor wirin g
c o nfig ur a tio n.
20. In c orre c t h o oku p or
wirin g .
N e e d Help ???
C all (830) 895-4700
or visit our w e b site on
th e Intern et at:
http: / / www.pwrtron.c o m
This v olt a g e r e g ul a t or c o nt a ins (2)
r e p l a c e a b l e fus e s lo c a t e d o n th e p rint e d
c irc uit c a rd .
Th e fus e s a r e th e so l d e r in ty p e a n d a r e
lo c a t e d o n th e c o m p o n e nt si d e o f th e
print e d c ir c uit c a rd a s sh o w n in th e d i a gr a m
b elo w.
To r e m o v e t h e
print e d c ir c uit c a rd
fro m th e r e g ul a t or
h o usin g , r e m o v e
th e 4 sh ort s c r e ws
fro m th e fro nt o f th e
h o usin g .
Fus e r a tin g : 5 a m p s @ 240v a c
Littl e fus e # 263005