Automatic transfer switches, OTM_C_D_
Installation and operating instructions
34OTM_C_D / 1SCC303003M0204
Contents
Installation and operating instructions, OTM_C_D_
Contents
1.
Introduction ....................................................................................................................... 5
1.1
1.2
Use of symbols .............................................................................................................................5
Explanations of abbreviations and terms .....................................................................................6
2.
Product overview .............................................................................................................. 7
2.1
Functions of automatic control units OMD_ .................................................................................8
3.
Description ....................................................................................................................... 9
3.1
Switching sequence .....................................................................................................................9
4.
Quick start ....................................................................................................................... 10
4.1
4.1.1
4.1.2
4.1.3
4.1.4
4.2
Operating the switch electrically.................................................................................................10
Operating the switch electrically / Manual Mode .......................................................................10
Operating the switch electrically / Automatic Mode ...................................................................12
Selection of delay time, voltage threshold and TEST function ...................................................12
Locking electrical operation........................................................................................................13
Operating the switch manually (local operation).........................................................................14
5.
Installation ....................................................................................................................... 16
5.1
5.2
5.3
5.3.1
5.3.2
5.4
5.4.1
5.4.2
5.5.3
Mounting the OTM_ automatic transfer switch ..........................................................................16
Dimensional drawings.................................................................................................................18
Parameter settings by DIP switches in the automatic control units OMD100, OMD200 and
OMD300 .....................................................................................................................................33
Parameter settings OMD100 ......................................................................................................34
Parameter settings OMD200 and OMD300 ................................................................................34
Mounting the automatic control unit OMD_ ...............................................................................37
Automatic control unit OMD_ on the switch ...............................................................................37
Automatic control unit OMD_ , door mounting ...........................................................................39
Automatic control unit OMD_ , DIN-rail mounting ......................................................................40
6.
Connecting ..................................................................................................................... 41
6.1
6.1.1
6.1.2
6.1.3
6.2
6.2.1
6.2.2
6.2.3
6.2.4
6.2.5
6.2.6
Power circuit ...............................................................................................................................41
Power circuit of the automatic control unit OMD100 .................................................................42
Power circuit of the automatic control unit OMD200 and OMD300 ...........................................42
Power circuit of the automatic control unit OMD800: ................................................................42
Control circuit .............................................................................................................................43
Control circuit of the automatic control unit OMD100 ................................................................46
Control circuit of the automatic control unit OMD200 ................................................................48
Control circuit of the automatic control unit OMD300 ................................................................50
Control circuit of the automatic control unit OMD800 ................................................................52
OMD_ outputs ............................................................................................................................54
OMD_ inputs ..............................................................................................................................54
7.
Operating ......................................................................................................................... 56
7.1
7.1.1
7.1.2
Electrical operation .....................................................................................................................56
Operating the switch electrically / Manual Mode .......................................................................58
Operating the switch electrically / Automatic Mode ...................................................................60
7.1.3
7.2
7.3
7.3.1
Selection of delay time, voltage threshold and TEST function ...................................................61
Manual operation using the handle ............................................................................................62
Locking .......................................................................................................................................64
Locking the electrical operation .................................................................................................64
3
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
Contents
7.3.2
Locking the manual operation ....................................................................................................64
8.
Technical data ................................................................................................................. 66
8.1
8.2
Automatic transfer switch OTM_C_D, power circuits.................................................................66
Motor operator OME_, control circuits .......................................................................................67
9.
Using automatic control unit OMD100 ........................................................................ 68
9.1
9.2
9.2.1
9.2.2
9.2.3
9.3
Interface ......................................................................................................................................68
Configuration ..............................................................................................................................68
Rotary Switches ..........................................................................................................................68
Keypad........................................................................................................................................69
LEDs ...........................................................................................................................................70
TEST sequence ..........................................................................................................................71
10.
Using automatic control units OMD200 and OMD300 ................................................ 72
10.1
10.2
10.2.1
10.2.2
10.2.3
10.2.4
10.3
Interface ......................................................................................................................................72
Configuration .............................................................................................................................72
Rotary Switches ..........................................................................................................................72
Keypad........................................................................................................................................73
LEDs ...........................................................................................................................................74
External transformer ...................................................................................................................75
TEST sequence ..........................................................................................................................75
11.
Using automatic control unit OMD800 ......................................................................... 76
11.1
11.2
11.2.1
11.2.2
11.2.3
11.2.4
Interface ......................................................................................................................................76
Configuration ..............................................................................................................................76
Keypad........................................................................................................................................76
LEDs ...........................................................................................................................................77
Display ........................................................................................................................................78
Dialogue functions required for OMD800 status information via Modbus .................................87
12.
Technical data of the automatic control units OMD_ .................................................. 88
12.1
12.2
12.3
OMD100......................................................................................................................................88
OMD200 / OMD300 ....................................................................................................................88
OMD800......................................................................................................................................89
13.
Troubleshooting .............................................................................................................. 90
13.1
13.2
13.3
13.4
OMD100, OMD200 or OMD300 .................................................................................................90
OMD800......................................................................................................................................91
Explanations of internal faults OMD100, OMD200, OMD300, OMD800 ....................................91
Change-over switch does not respond ......................................................................................92
14.
Accessories ..................................................................................................................... 93
14.1
14.2
14.3
14.4
14.5
14.6
14.7
Terminal clamp sets ....................................................................................................................93
Bridging bars ..............................................................................................................................94
Auxiliary contact blocks ..............................................................................................................96
Terminal shrouds.........................................................................................................................97
Handle and spare fuse storage...................................................................................................99
Fastener ......................................................................................................................................99
Cover plate ...............................................................................................................................100
15.
UL standard switches................................................................................................... 101
15.1
Phase barriers ...........................................................................................................................102
4
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
1. Introduction
1. Introduction
This manual describes the installation and the basic operation of the OTM160-1600_C_D_ automatic
transfer switches. The instructive part is followed by a section on available accessories.
1.1 Use of symbols
Hazardous voltage: warns about a situation where a hazardous voltage may cause
physical injury to a person or damage to equipment.
General warning: warns about a situation where something other than electrical
equipment may cause physical injury to a person or damage to equipment.
Caution: provides important information or warns about a situation that may
have a detrimental effect on equipment.
Information: provides important information about the equipment.
5
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
1. Introduction
1.2 Explanations of abbreviations and terms
OTM_C_D_:
Automatic transfer switch, the type name
OME:
Motor operator, the type name
OMD:
The control unit of automatic transfer switching equipment, common type name for
the automatic control unit
OMD100:
The automatic control unit, basic version with simplified functionalities
OMD200:
The automatic control unit, standard version
OMD300:
The automatic control unit, standard version with additional power supply control
OMD800:
The automatic control unit, high version with communication and display
DPS:
Dual power source
Modbus RTU:
Bus communication protocol
LN1-Switch I:
Power supply line, eg. the primary line
LN2-Switch II:
Power supply line, eg. the secondary line used in emergency cases
Test sequence: A sequence to test the functionality of the OMD and the connected change-over switch
Ts
Switching delay (0...60 s, 0 s default)
DB I to II
Dead band I to II (0...60 s, 0 s default)
TBs
Back switching delay (0...59 s, 1...30 min, 0 s default)
DB II to I
Dead band I to II (0...60 s, 0 s default)
Gs
Generator stop delay (0...59 s, 1...30 min, 0 s default)
6
1SCC303003M0204, rev. D
2. Product overview
Installation and operating instructions, OTM_C_D_
2. Product overview
Automatic transfer switches (type OTM160...1600_C_D_) are designed for diverse applications to choose
and to switch between two power supplies. You can operate the OTM_ automatic transfer switches
either electrically by choosing the Automatic / Manual Mode or manually by using the handle. The
operation either electrical or manual can be chosen by the selector switch “Motor/Manual” on the motor
operator.
OTM_ automatic transfer switches consist of the change-over switch, the motor operator and the
automatic control unit. The automatic control unit (type OMD_) is available in four versions for different
purposes.
Figure 2.1
1
2
3
4
5
6
7
8
9
10
11
12
13
OTM_ automatic transfer switch
Change-over switch
Automatic control unit (four types; OMD100, OMD200, OMD300, OMD800)
Motor operator (type OME_)
Switch panel, the operating mechanism
Handle for manual operation
Motor/Manual selection
Terminals for motor operator voltage supply
Terminals (X2) for locking state information, optional; see control circuit diagrams, pages 46-53
Fuse (F1) of motor operator
Locking latch for releasing the handle and locking electrical control
Locking clip for locking manual operation
Voltage sensing wires
Place for auxiliary contact blocks
7
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
2. Product overview
2.1 Functions of automatic control units OMD_
Figure 2.2
Automatic control units OMD_
OMD100:
Analysing the voltage, frequency and the phase balance.
OMD100 is the basic version of the control unit of automatic switching equipment. It has two sensors
to monitor two three-phase power lines, both able to work with single phase, too. OMD100 has the
capability to monitor two power supply lines and to manage a single change-over switch. The neutral line
always has to be connected.
OMD200:
Analysing the voltage, frequency and the phase balance. Includes the generator START / STOP command.
OMD200 has two sensors to monitor two three-phase power lines, both able to work with single phase,
too. It has the capability to monitor two power supply lines and to manage a single change-over switch.
With DIP-switches it can be chosen whether or not the neutral line is connected. If OMD200 is used
without the neutral line, the external transformer must be used.
OMD300:
Analysing the voltage, frequency and the phase balance. Includes the generator START / STOP command
and the dual power supply (DPS) to motor operator.
OMD300 has two sensors to monitor two three-phase power lines, both able to work with single phase,
too. It has the capability to monitor two power supply lines and to manage a single change-over switch.
OMD300 has integrated voltage supply for the motor operator (Dual power source, DPS). The neutral line
always has to be connected. Moreover, the OMD300 has an additional power supply control.
OMD800:
Analysing the voltage, frequency and the phase balance. Includes the generator START / STOP command.
Communication via Modbus.
DI/DO.
The OMD800 has two sensors to monitor two power lines; both sensors are able to work with single
phase or three-phase lines. This unit can be supplied with an external auxiliary power supply. The status
of OMD800 can be monitored through the Modbus RTU connection. The OMD800 has a graphic display
where the user is able to check the settings and get all the information about status of the OMD800.
8
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
3. Description
3. Description
3.1 Switching sequence
In standard conditions, the automatic control unit OMD_ monitors the Line 1 (LN1), analyzing the voltage
and the frequency. If a measured value is out of the set threshold and the Line 2 (LN2) is OK, the OMD_
operates the change-over switch (Switch I) first to the position O. After the set dead band delay, the
change-over switch (Switch II) is operated to the position II. In the same way, OMD_ will operate the
back-switching sequence, when the Line 1 will start the normal functioning.
Close the switch I on LN1
(max. operating duration 3 s)
Ts
Switching delay (0...60 s, 0 s default)
DB I to II
Dead band I to II (0...60 s, 0 s default)
Switch I status
The switch I in position I -status
TBs
Back switching delay (0...59 s, 1...30 min, 0 s default)
Close Switch II
Close the switch II on LN2
(max. operating duration 3 s)
DB II to I
Dead band II to I (0...60 s, 0 s default)
Switch II status
The switch II in position II -status
Gs
Generator stop delay
(0...59 s, 1...30 min, 0 s default)
Close Switch I
Figure 3.1
Automatic Switching Sequences in OMD800
The switching sequence can be summarized in the following steps:
An anomaly occurs on the Line 1
Switching delay
Change-over switch (Switch I) to the position O
Dead band I to II delay
Change-over switch (Switch II) to the position II
The back-switching sequence can be summarized in the following steps:
The Line 1 will start the normal functioning
Back-switching delay
Change-over switch (Switch II) to the position O
Dead band II to I delay
Change-over switch (Switch I) to the position I
9
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
4. Quick start
4. Quick start
This is a quick guide only meant for those who need a reminder of how to operate the unit. For more
detailed instructions, see chapter 7.
4.1 Operating the switch electrically
To operate the switch electrically:
1.
2.
Remove the handle from the switch panel. You can remove the handle in any position.
Turn the Motor/Manual selector to the Motor (M) position to enable electrical operate.
After that operation you can operate the switch electrically by two ways; the automatic control unit
OMD_ is in Manual Mode or Automatic Mode.
Figure 4.1
Operating the switch electrically
4.1.1 Operating the switch electrically / Manual Mode
Selecting the automatic operate unit OMD_ to the Manual Mode:
a.
b.
c.
Make sure that power LED is ON, see the Figure 4.2/ .
If Auto LED is OFF / , the automatic control unit is in Manual Mode.
If the Auto LED is ON, push the Auto key once / . The Auto LED switches to OFF and the
automatic control unit OMD_ is in Manual Mode / .
Figure 4.2
Selecting the automatic control unit OMD_ to Manual Mode
10
1SCC303003M0204, rev. D
4. Quick start
Installation and operating instructions, OTM_C_D_
To select the switch to operate by the automatic control unit OMD_ in Manual Mode:
a.
b.
c.
d.
e.
Push the appropriate I, O or II key
When pushing the I-key (see the Figure 4.3/ or Figure 4.4/ ), the I-switch (lower) will be in the ON
position (the status and the line indication, see the Figure 4.3/ or the Figure 4.4/ ) and the
II-switch (upper) will be in the OFF position. If the I-switch is already in the ON position, pushing the
I-key does not have any effect.
When pushing the O-key, the I-switch will be in the OFF position. The II-switch remains in the
OFF position.
When pushing the II-key, the II-switch will be in the ON-position and the I-switch will be in the
OFF position.
If you push the I-key while the II-switch is in the ON position, first the II-switch opens (OFF position)
and then the I-switch closes its contacts (ON position).
Figure 4.3
Selecting the switch to operate, the switch status and the chosen line indication with
LEDs in OMD100, OMD200 or OMD300
Figure 4.4
Selecting the switch to operate, the switch status and the chosen line indication in display
terminal in OMD800
11
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
4. Quick start
4.1.2 Operating the switch electrically / Automatic Mode
Selecting the automatic control unit OMD_ to the Automatic Mode:
a.
b.
c.
d.
Make sure that power LED is ON, see the Figure 4.5/ .
Push the Auto key once / .
If Auto LED is ON, the automatic control unit is in Automatic Mode / .
If the Auto LED is OFF, push the Auto key again / , the Auto LED switches to ON /
automatic control unit is in Automatic Mode.
Figure 4.5
and the
Selecting the automatic control unit OMD_ to Automatic Mode
See the OMD_ Automatic Mode operation in Sections 9-13.
4.1.3 Selection of delay time, voltage threshold and TEST function
The delay time and the voltage threshold are set by the rotary switches in automatic control
units OMD100, OMD200 and OMD300. For the settings in OMD800, see Section 11.2.3.4 Device
configuration, page 81.
Figure 4.6
Selection of delay time and voltage threshold in OMD100
12
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
4. Quick start
Figure 4.7
Selection of delay time and voltage threshold in OMD200 and OMD300
Ts = Delay time for automatic switching
The delay time is the time before activating the switching sequence and the back-switching sequence.
Available selections for the delay time are: 0, 5, 10, 15, 20, 25, 30 s.
Lim = Voltage threshold with TEST function
The available selections for voltage threshold in OMD100 are: ± 5, ± 10, ± 15, ± 20 %. In OMD200 and
OMD300 the available selections for voltage threshold are: ± 5, ± 10, ± 15, ± 20, ± 25, ± 30 %, see the
available settings / voltage in Figure 4.7. By setting the voltage threshold, the unbalance is also set to the
same level.
When the Lim rotary switch is set to the TEST position, the automatic control unit (OMD100, OMD200
or OMD300) enters the test sequence. In test sequence it is possible to simulate switching and backswitching sequences step by step by pushing the AUTO key.
4.1.4 Locking electrical operation
To disable electrical control, lock the locking latch with a padlock. After the locking latch has been
locked, the switch cannot be operated electrically. You can lock electrical operation in any position
(I, O, II).
Figure 4.8
Locking electrical control
13
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
4. Quick start
4.2 Operating the switch manually (local operation)
To operate the switch manually:
1.
2.
Turn the Motor/Manual selector to the Manual (Man) position to enable manual operation and to
prevent electrical operation.
Attach the handle to the switch panel. You can attach the handle in any position.
Figure 4.9
Operating the switch manually
When the handle is attached, the automatic control unit OMD_ will automatically be in Manual Mode. The
Alarm LED on the automatic control unit is ON with the Power LED. The Auto LED will be OFF.
When the handle is removed, the automatic control unit will stay in Manual Mode and the Alarm LED will
be OFF.
Figure 4.10
The Alarm LED is ON while the handle is attached and the automatic control unit is in
Manual Mode
14
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
4. Quick start
To disable the manual (and at the same time also electrical) operation, turn the handle to the position O
and attach the padlock to the handle.
Figure 4.11
Locking the manual operation
The following chart shows the locking state information. Optional; see X2 in the control circuit diagrams,
pages 46-53.
Figure 4.12
Locking state information, optional
15
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
5. Installation
5.1 Mounting the OTM_ automatic transfer switch
Use protection against direct contact.
Figure 5.1
An example of using protection against direct contact
16
1SCC303003M0204, rev. D
5. Installation
5. Installation
Figure 5.2
Installation and operating instructions, OTM_C_D_
Automatic transfer switches, drilling hole distances / screw-mounting, [mm/in]
17
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
5.2 Dimensional drawings
Figure 5.3
OTM160-250E_C_1D_
Figure 5.4
OTM160-250E_C_2D_, OTM160-250E_C_3D_
18
1SCC303003M0204, rev. D
5. Installation
5. Installation
Installation and operating instructions, OTM_C_D_
Figure 5.5
OTM160-250E_C_8D_
Figure 5.6
OTM160-250E_WC_1D_
19
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
Figure 5.7
OTM160-250E_CW_2D_, OTM160-250E_CW_3D_
Figure 5.8
OTM160-250E_CW_8D_
20
1SCC303003M0204, rev. D
5. Installation
5. Installation
Installation and operating instructions, OTM_C_D_
Figure 5.9
OTM200U_C_1D_
Figure 5.10
OTM200U_C_2D_, OTM200U_C_3D_
21
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
Figure 5.11
OTM200U_C_8D_
Figure 5.12
OTM315-400E_C_1D_
22
1SCC303003M0204, rev. D
5. Installation
5. Installation
Installation and operating instructions, OTM_C_D_
Figure 5.13
OTM315-400E_C_2D_, OTM315-400E_C_3D_
Figure 5.14
OTM315-400E_C_8D_
23
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
Figure 5.15
OTM400U_C_1D_
Figure 5.16
OTM400U_C_2D_, OTM400U_C_3D_
24
1SCC303003M0204, rev. D
5. Installation
5. Installation
Installation and operating instructions, OTM_C_D_
Figure 5.17
OTM400U_C_8D_
Figure 5.18
OTM630-800E_C_1D_
25
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
Figure 5.19
OTM630-800E_C_2D_, OTM630-800E_C_3D_
Figure 5.20
OTM630-800E_C_8D_
26
1SCC303003M0204, rev. D
5. Installation
Installation and operating instructions, OTM_C_D_
5. Installation
Figure 5.21
OTM600U_C_1D_
Figure 5.22
OTM600U_C_2D_, OTM600U_C_3D_
27
1SCC303003M0204, rev. D
5. Installation
Installation and operating instructions, OTM_C_D_
Figure 5.23
OTM600U_C_8D_
387
400
240
96
170
50
20'
Ø 13,5
2))
242
96
I
II
I
II
21
21
V
7(67
208
400
250
112
260
206
M
A1
Man.
15
50
136
295
317
15
Figure 5.24
M00261/OTM1000_1250E2_4C1 A
75
A
A1
A2
B
171
OTM1000-1250E_C1D_
28
1SCC303003M0204, rev. D
253
74,5
OTM1000-1250E_C1D
E3
E2
80
80
230
230
476
396
506
426
306
272
E4
80
230
556
586
A2
A
B
63
Installation and operating instructions, OTM_C_D_
5. Installation
387
240
170
400
20'
290
50
144
Ø 13,5
2))
I
256
II
I
II
21
21
V
7(67
400
306
250
260
272
206
112
M
A1
Man.
15
50
171
136
295
75
253
74,5
A2
317
M00262/OTM1000_1250E2_4C2 A
15
Figure 5.25
A
A1
A2
B
OTM1000-1250E_C_D
E3
E2
80
80
230
230
476
396
506
426
A
63
B
E4
80
230
556
586
OTM1000-1250E_C2D_, OTM1000-1250E_C3D_
387
240
400
170
80
20'
13,5
290 144
256
200
I
II
21
2))
21
112
206
400
50
A1
272
250
260
306
M
Man.
171
253
A
A2
136
15
Figure 5.26
74,5
295
317
75
M00264/OTM1000_1250E2_4C8 A
15
63
B
A
A1
A2
B
OTM1000-1250E_C8D
E3
E2
80
80
230
230
476
396
506
426
E4
80
230
556
586
OTM1000-1250E_C_8D_
29
1SCC303003M0204, rev. D
5. Installation
Installation and operating instructions, OTM_C_D_
mm
in
387
15,25
400
15,76
240
9,45
170
6,7
13,5 / 0,53
74,5
2,93
50 / 1,97
20'
242 96
9,53 3,78
2))
I
II
I
II
21
208
8,19
21
V
7(67
338
13,32
246
326
12,84 372
9,69
14,65 546
258
546
10,16
21,51
112
4,41
A1
21,51
400
15,76
206
8,12
260
10,24
M
Man.
19
0,75
171 /6,74
253 / 9,97
A
63
2,48
A2
15
0,59
136
5,36
M00263/OTM1200U2_4C1 A
B
295
11,62
OTM800-1200U_C1D
E3
E4
E2
80/3,15
80/3,15
80/3,15
230/9,06
230/9,06
230/9,06
396,5/15,62 476,5/18,77 556/21,9
586/23,09
426,5/16,8 506/19,94
A
A1
A2
B
Figure 5.27
15
0,59
75
2,95
317
12,49
OTM800-1200U_C1D_
mm
in
387
15,25
400
15,76
96
3,78
170
6,7
240
9,45
20'
290
11,42
13,5 / 0,53
144
5,67
74,5
2,93
50 / 1,97
15
0,59
20'
2))
2))
I
II
256
10,08
II
I
21
21
V
7(67
112
4,41
A1
338
13,32
326
246
9,69 12,84
258
10,16
372
14,65
M
400
15,76
206
546
21,51 8,12
260
10,24
Man.
19
0,75
171,5
6,75
253 / 9,97
A
A2
63
2,48
74,5
2,93
136
5,36
M00265/OTM1200U2_4C2 A
B
Figure 5.28
A
A1
A2
B
OTM800-1200U_C_D
E3
E2
80/3,15
80/3,15
230/9,06
230/9,06
476/18,75
396/15,6
506/19,94
426/16,78
317
12,49
E4
80/3,15
230/9,06
556/21,9
586/23,09
OTM800-1200U_C2D_, OTM800-1200U_C3D_
30
1SCC303003M0204, rev. D
296,5
11,68
15
0,59
75
2,95
Installation and operating instructions, OTM_C_D_
5. Installation
mm
in
387
15,25
400
15,76
96
3,78
170
6,7
240
9,45
20'
13,5 / 0,53
290
11,42
74,5
2,93
50 / 1,97
15
0,59
144
5,67
256
10,08
I
II
21
2))
21
338
13,32
326
246
9,69 12,84
258
10,16
112
4,41
400
15,76
546
21,51
260
10,24
372
14,65
M
Man.
206
8,12
19
0,75
171
6,75
253 / 9,97
A
63
2,48
74,5
2,93
M00266/OTM1200U2_4C8 A
A2
B
Figure 5.29
136
5,36
296,5
11,68
317
12,49
OTM800-1200U_C8D
E3
E4
E2
80/3,15
80/3,15
80/3,15
230/9,06
230/9,06
230/9,06
476/18,75
556/21,9
396/15,6
506/19,94
586/23,09
426/16,78
A
A1
A2
B
15
0,59
75
2,95
OTM800-1200U_C8D_
387
400
240
A2
96
170
200
Ø13,5
50
20'
2))
242
96
I
II
208
400
I
II
21
21
V
7(67
112
246
260
258
206
M
19
171
253
136
M00267/OTM1600E2_4C1 A
75
Figure 5.30
372
A1
Man.
15
338
326
74,5
B
A
63
295
317
A
A1
A2
B
OTM1600E-C1D
E3
E2
80
80
230
230
476
396
506
426
E4
80
230
556
586
OTM1600E_C1D
31
1SCC303003M0204, rev. D
5. Installation
Installation and operating instructions, OTM_C_D_
387
240
400
170
A2
20'
Ø13,5
290
144
256
II
I
II
21
21
400
50
2))
I
V
7(67
112
246
260
M
A1
Man.
19
171
253
M00268/OTM1600E2_4C2 A
63
A
B
74,5
136
75
Figure 5.31
372
258
206
15
338
326
295
317
OTM1600E_C_D
E3
E2
80
80
230
230
476
396
506
426
A
A1
A2
B
E4
80
230
556
586
OTM1600E_C2D_, OTM1600E_C3D_
240
387
400
96
170
20'
Ø13,5
290 144
50
256
I
II
21
2))
21
112
400
246
260
258
206
M
A1
Man.
19
15
171
136
75
253
15
74,5
M00269/OTM1600E2_4C8 A
295
317
Figure 5.32
A
A1
A2
B
OTM1600E_C8D
E3
E2
80
80
230
230
476
396
506
426
OTM1600E_C8D_
32
1SCC303003M0204, rev. D
338
326
E4
80
230
556
586
B
A
A2
63
372
5. Installation
Installation and operating instructions, OTM_C_D_
5.3 Parameter settings by DIP switches in the automatic
control units OMD100, OMD200 and OMD300
Only an authorised electrician may perform the electrical installation and maintenance
of OTM_ automatic transfer switches. Do not attempt any installation or maintenance
actions when an OTM_ automatic transfer switch is connected to the electrical mains.
Before starting work, make sure that the switch is de-energised.
The parameter settings of automatic control units OMD100, OMD200 and OMD300 are performed by
the DIP switches. To set the DIP switches, the OMD_ unit has to be removed from the switch, as per
Figure 5.33. On the bottom of the OMD_ unit are the DIP switches; see Figure 5.34. After setting the DIP
switches you can place the OMD_ unit back on the switch according to Figure 5.37, see page 37.
Figure 5.33
Removing of the OMD_ from the switch
Figure 5.34
Places of the DIP switches
33
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
5. Installation
The DIP switches of the automatic control units OMD100, OMD200 and OMD300 are set according the
lists below. The parameter settings of automatic control unit OMD800 are on the Chapter 11 “Using
automatic control unit OMD800”, page 76.
If single phase is used, the neutral should be connected.
5.3.1 Parameter settings OMD100
Automatic control unit OMD100 has a total of three (3) adjustable parameters. The parameter settings
are performed by the DIP switches and by the rotary switches.
Ph
Number of phases, setting by DIP switch S23-1
TS
Switching delay, setting by Ts rotary switch, see page 68
THR
Voltage threshold, setting by Lim rotary switch, see page 68
5.3.1.1 Parameter settings by DIP switches S23
DIP switch S23-2 is not in use.
S23
Figure 5.35
DIP switches in OMD100, the positions are factory default settings
DIP switch S23-1 to set phase system
S23-1
Position
Phase system
OFF
three-phase (default)
ON
single phase
5.3.2 Parameter settings OMD200 and OMD300
Automatic control units OMD200 and OMD300 have total of seven (7) adjustable parameters. The
parameter settings are performed by the DIP switches and by the rotary switches.
Un
Rated voltage, setting by DIP switches S23-1...3
fn
Rated frequency, setting by DIP switch S23-4
N
Neutral in use, setting by DIP switch S24-1
Ph
Number of phases, setting by DIP switch S24-2
34
1SCC303003M0204, rev. D
5. Installation
Installation and operating instructions, OTM_C_D_
Gen
Generator in use, setting by DIP switch S24-3
Gs
Generator stop delay, setting by DIP switch S24-4
Ts
Switching delay, setting by Ts rotary switch, see page 72
THR
Voltage threshold, setting by Lim rotary switch, see page 72
5.3.2.1 Parameter settings by DIP switches
S23
Figure 5.36
S24
DIP switches in OMD200 and OMD300, the positions are factory default settings
5.3.2.1.1 DIP switches S23
DIP switches S23-1...3 to set the rated voltage of monitored lines
S23-1...3
Positions
Main/phase voltage (Un)
Positions
OFF, OFF, OFF
Un = 480/277 V
OFF, OFF, ON
Un = 380/220 V
ON, OFF, OFF
Un = 440/260 V
ON, OFF, ON
Un = 230/130 V
OFF, ON, OFF
Un = 415/240 V
OFF, ON, ON
Un = 220/127 V
ON, ON, OFF
Un = 400/230 V
(default)
ON, ON, ON
Un = 208/120 V
Main/phase voltage (Un)
DIP-switch S23-4 to set rated frequency of the monitored lines
S23-4
Position
Rated frequency fn
OFF
50Hz (default)
ON
60Hz
35
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
5.3.2.1.2 DIP switches S24
DIP-switch S24-1 to set neutral
S24-1
Position
Neutral N
OFF
N used (default)
ON
N not in use
DIP- switch S24-2 to set phase system
S24-2
Position
Phase system
OFF
three-phase (default)
ON
single phase
DIP-switch S24-3 to set the gen use
S24-3
Position
Generator
OFF
not in use (default)
ON
in use
DIP-switch S24-4 to set the generator stop delay Gs
S24-4
Position
Generator
OFF
Gs = Switching delay Ts (default)
ON
Gs = 5 minutes
NOTE: see page 72 Delay time (Ts)
36
1SCC303003M0204, rev. D
5. Installation
5. Installation
Installation and operating instructions, OTM_C_D_
5.4 Mounting the automatic control unit OMD_
The automatic control unit OMD_ can be mounted on the switch, the door or the DIN-rail.
5.4.1 Automatic control unit OMD_ on the switch
The automatic control unit OMD_ can be adjusted according to the mounting depth of the panel, see
Figure 5.37.
Figure 5.37
Adjusting the mounting depth of the automatic control unit OMD_
37
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
5. Installation
Door drilling according to Figure 5.38. As an optional extra you can use the cover plate OMZC_ on the
door, see Accessories, page 100.
Figure 5.38
Door drilling for the automatic control unit OMD_ on the switch, door drilling for the cover plate
OMZC_, see Accessories, Figure 14.9, page 100.
38
1SCC303003M0204, rev. D
5. Installation
Installation and operating instructions, OTM_C_D_
5.4.2 Automatic control unit OMD_ , door mounting
The automatic control unit OMD_ can be mounted on the door with the fastener OMZD1, see
Accessories, page 99. Door drilling according to Figure 5.39. As an optional extra you can use the cover
plate OMZC_ on the door, see Figure 5.40 on next page and Accessories, page 100.
Figure 5.39
Automatic control unit OMD_, door mounting
39
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
Figure 5.40
5. Installation
Automatic control unit OMD_, door mounting with the cover plate, door drilling for the
cover plate OMZC_, see Accessories, Figure 14.10, page 100
5.5.3 Automatic control unit OMD_ , DIN-rail mounting
The automatic control unit OMD_ can be mounted on the 35 mm DIN-rail, see the Figure 5.41. Door
drilling, if needed, according to Figure 5.38, page 38. As an optional extra you can use the cover plate
OMZC_ on the door, see Figure 5.38 and Accessories, page 100.
Figure 5.41
Automatic control unit OMD_, DIN-rail mounting
40
1SCC303003M0204, rev. D
6. Connecting
Installation and operating instructions, OTM_C_D_
6. Connecting
Only an authorised electrician may perform the electrical installation and maintenance
of OTM_ automatic transfer switches. Do not attempt any installation or maintenance
actions when an OTM_ automatic transfer switch is connected to the electrical mains.
Before starting work, make sure that the switch is de-energised.
6.1 Power circuit
Figure 6.1
The neutral pole is situated on the right side of the switches. The lower switch is number I
and the upper switch is number II
41
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
6. Connecting
6.1.1 Power circuit of the automatic control unit OMD100
Operating voltage:
Main voltage:
380Vac (±20%)
Phase voltage:
220Vac (±20%)
Frequency:
50Hz (±10%)
Neutral must always be connected.
Phase setting with DIP switches: Single phase or Three-phase (default).
6.1.2 Power circuit of the automatic control unit OMD200 and OMD300
Operating voltage, setting with DIP switches
Main voltage:
Phase voltage:
Frequency:
208Vac - 480Vac (±20%)
120Vac - 277Vac (±20%)
50Hz - 60Hz (±10%)
Phase setting with DIP switches: Single phase or Three-phase (default).
OMD200:
If the automatic control unit OMD200 is used without neutral (three-phase connection), the external
transformer must be used. The transformer will drop the main voltage to the phase voltage level. Neutral
has to be connected when using a single phase connection.
OMD300:
Neutral must always be connected.
6.1.3 Power circuit of the automatic control unit OMD800:
Operating and measuring voltage area on 3 phase system:
Main voltage:
Phase voltage:
AUX voltage:
Frequency:
100Vac - 480Vac (±20%)
57.7Vac - 277Vac (±20%)
24Vdc - 110Vdc (-10 to +15%)
50Hz - 60Hz (±10%)
Operating and measuring voltage area on 1 phase system:
Phase voltage:
AUX voltage:
Frequency:
57,7Vac - 240Vac (±20%)
24Vdc - 110Vdc (-10 to +15%)
50Hz - 60Hz (±10%)
Phase setting, see the Chapter 11.
If the main voltage level is between 57,7Vac - 109Vac, the auxiliary power supply (AUX) must be used.
42
1SCC303003M0204, rev. D
6. Connecting
Installation and operating instructions, OTM_C_D_
6.2 Control circuit
Figure 6.2
1.
2.
OTM_ automatic transfer switch terminals
Terminals for motor operator voltage supply, MCB (F2) maximum size 16A.
Terminals (X2) for state information of locking, optional; see the control circuit diagrams.
When relay outputs are used with inductive loads (such as relays, contactors and
motors), they must be protected from voltage peaks using varistors, RC-protectors
(AC current) or DC current diodes (DC current).
43
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
Figure 6.3
Control circuit connections in OMD_
44
1SCC303003M0204, rev. D
6. Connecting
6. Connecting
Figure 6.4
Installation and operating instructions, OTM_C_D_
OTM_ automatic transfer switch with control circuit connections
45
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
6. Connecting
KA00320
6.2.1 Control circuit of the automatic control unit OMD100
Figure 6.5
Control circuit diagram OMD100
46
1SCC303003M0204, rev. D
6. Connecting
Installation and operating instructions, OTM_C_D_
Connectors, OMD100
Figure 6.6
Connectors, OMD100
Connector
Description
X11:1
X11:2
X11:3
X11:4
Supply I: L1
Supply I: L2
Supply I: L3
Supply I: N
X12:1
X12:2
X12:3
X12:4
Supply II: L1
Supply II: L2
Supply II: L3
Supply II: N
X21:1
X21:2
X21:3
X21:4
Voltage supply from motor operator OME_
Output to close switch I or open switch II
Output to close switch II or open switch I
Voltage supply from motor operator OME_
X24:1
X24:2
X24:3
Alarm inactive, close if product is powered
Common
Alarm active, open if product is powered
X31:1
X31:2
X31:3
X31:4
Manual / Alarm input from handle
Position of change-over switch I
Position of change-over switch II
Voltage supply from the automatic control unit OMD_
X61
Equipment earth
Table 6.1
Common
NO
NO
Common
Connectors OMD 100
47
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
6. Connecting
KA00321
6.2.2 Control circuit of the automatic control unit OMD200
Figure 6.7
Control circuit diagram OMD200
48
1SCC303003M0204, rev. D
6. Connecting
Installation and operating instructions, OTM_C_D_
Connectors, OMD200
Figure 6.8
Connectors, OMD200
Connector
Description
X11:1
X11:2
X11:3
X11:4
X13:1
X13:2
X12:1
X12:2
X12:3
X12:4
X14:1
X14:2
X21:1
X21:2
X21:3
X23:1
X23:2
X23:3
X24:1
X24:2
X24:3
X31:1
X31:2
X31:3
X31:4
X61
Supply I: L1
Supply I: L2
Supply I: L3
Supply I: N
Supply I (power supply): L1 (default)
Supply I (power supply): N
Supply II: L1
Supply II: L2
Supply II: L3
Supply II: N
Supply II (power supply): L1 (default)
Supply II (power supply): N
Voltage supply from motor operator OME_ Common
Output to close switch I or open switch II
NO
Output to close switch II or open switch I
NO
Output to control the start of the generator, NO
Common
Output to control the stop of the generator, NC
Alarm inactive, close if product is powered
Common
Alarm active, open if product is powered
Manual / Alarm input from handle
Position of change-over switch I
Position of change-over switch II
Voltage supply from the automatic control unit OMD_
Equipment earth
Table 6.2
Connectors OMD200
49
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
6. Connecting
KA00322
6.2.3 Control circuit of the automatic control unit OMD300
Figure 6.9
Control circuit diagram OMD300
50
1SCC303003M0204, rev. D
6. Connecting
Installation and operating instructions, OTM_C_D_
Connectors, OMD300
Figure 6.10
Connectors, OMD300
Connector
Description
Connector
Description
X11:1
X11:2
X11:3
X11:4
Supply I: L1
Supply I: L2
Supply I: L3
Supply I: N
X24:1
X24:2
X24:3
Alarm inactive, close if product is powered
Common
Alarm active, open if product is powered
X13:1
X13:2
Supply I (power supply): L1 (default)
Supply I (power supply): N
X12:1
X12:2
X12:3
X12:4
Supply II: L1
Supply II: L2
Supply II: L3
Supply II: N
X31:1
X31:2
X31:3
X31:4
Manual / Alarm input from handle
Position of change-over switch I
Position of change-over switch II
Voltage supply from automatic control unit
X26:1
X26:2
Supply I: L1
Supply I: N
X14:1
X14:2
Supply II (power supply): L1 (default)
Supply II (power supply): N
X27:1
X27:2
Motor: L
Motor: N
X21:1
X28:1
X28:2
Supply II: L1
Supply II: N
X21:2
X21:3
Voltage supply from motor operator OME_
Common
Output to close switch I or open switch II NO
Output to close switch II or open switch I NO
X61
Equipment earth
X23:1
X23:2
X23:3
Output to control the start of the generator, NO
Common
Output to control the stop of the generator, NC
Table 6.3
Connectors OMD300
51
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
6.2.4 Control circuit of the automatic control unit OMD800
Figure 6.11
Control circuit diagram OMD800
52
1SCC303003M0204, rev. D
6. Connecting
6. Connecting
Installation and operating instructions, OTM_C_D_
Connectors, OMD800
Figure 6.12
Connectors, OMD800
Connector
Description
Connector
Description
X11:1
X11:2
X11:3
X11:4
X12:1
X12:2
X12:3
X12:4
X41:1
X41:2
X21:1
Supply I: L1
Supply I: L2
Supply I: L3
Supply I: N
Supply II: L1
Supply II: L2
Supply II: L3
Supply II: N
AUX +
AUX Voltage supply from motor operator OME_
Common
Output to close switch I or open switch II NO
Output to close switch II or open switch I NO
Output to control the start of the generator, NO
Common
Output to control the stop of the generator, NC
Command disconnection secondary loads, NO
Common
Command disconnection secondary loads, NC
X29:1
X29.2
X29:3
X29:4
X29.5
X29:6
X29:7
X31:1
X31:2
X31:3
X31:4
X32:1
X32.2
X32:3
X32:4
X32.5
X32:6
X32:7
X32:8
X32.9
X51:1
X51:2
X52:3
X61
Signalling emergency / alarm, NO
Reserved
Reserved
Signalling device alarm, NO
Signalling OMD_ manual mode, NO
Reserved
Common
Manual / Alarm input from handle
Position of change-over switch I
Position of change-over switch II
Voltage supply from the automatic control unit
Bus-tie status
Command to start-up to generator
Command to force commutation
Generator alarm input
Reserved
Reserved
Reserved
Reserved
Supply
Modbus DATA B
Modbus DATA A
Modbus GND
Equipment earth
X21:2
X21:3
X23:1
X23:2
X23:3
X24:1
X24:2
X24:3
Table 6.4
Connectors OMD800
53
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
6. Connecting
6.2.5 OMD_ outputs
6.2.5.1 Opening/closing command to change-over switches, X21 (DO1...DO2)
The output relays command the change-over switches to open and close its releases.
The OMD_ device has been integrated with the automation logic to guarantee the highest-level safety for
commanding the change-over switches.
To do that, the automation logic monitors the correct operation of the change-over switch after a
command has been sent. If the feedback of the Switch status is not received within 5 seconds of the
sending of the command, the device considers it as a failed command and operates as follows:
An alarm is generated: DO6 and DO9 activate.
Alarm LED switches on.
Alarm is set off by pushing the AUTO key. After that the device is always in the Manual Mode to
prevent unwanted operation of the change-over switch.
Exactly the same operations are performed for the protection device on the secondary line
(LN2-Switch II) during the back-switching sequence.
6.2.5.2 Gen-Set start/stop, X23 (DO5)
Gen-Set start and stop is handled by a bistable relay. When the relay is active on DO5 Start X23:1, the
generator is started. When the relay is active on DO5 stop X23:3, the generator is stopped.
6.2.5.3 Alarm signaling
OMD100, OMD200 and OMD300: X24 (DO6)
OMD800: X29:1 (DO6)
This contact is closed when the automatic transfer switch logic is active. If the contact is closed, it
means the logic is disabled and an alarm is generated.
6.2.5.4 Device alarm signaling, X29:4 (DO9)
This contact is closed when opening or closing of the switch fails.
6.2.5.5 Auto/Manual signaling, X29:5 (DO10)
This contact is closed when the operating mode is Manual.
6.2.5.6 Disconnection secondary loads, OMD800/X24 (DO11)
See section 11, page 76.
6.2.6 OMD_ inputs
6.2.6.1 Switch status input, X31:2 (DI1) X31:3 (DI2)
Two inputs are connected to primary (LN1-Switch I) and secondary (LN2-Switch II) change-over switches
auxiliary contacts (Switch open = open contact).
6.2.6.2 Force manual, X31:1 (DI3)
When this input is closed, the handle is attached and OMD_ is forced to Manual Mode.
To set the OMD_ in the Automatic Mode the AUTO key must be pushed (Auto LED is ON).
6.2.6.3 Gen-Set alarm, X32:4 (DI8)
A Gen-Set alarm prevents switching to the secondary line (LN2 – Switch II). If the alarm occurs when the
device is using secondary line and generator is running, device keeps the load on secondary line and
the control logic is locked. The automatic operation and electrical operation are prevented as long as the
alarm is active.
This input can be used to wire several alarms coming from the Gen-Set in parallel: oil pressure loss, over
temperature etc.
54
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
6. Connecting
An alarm is signaled by the Alarm LED on the front of the device and the relative electrical contact is
closed.
NOTE: In the case of Gen-Set alarm the switch can be operated to position O by pressing O key.
NOTE: The generator can be stopped by using normal generator stop –command. See page 86:
Generator Control
6.2.6.4 Forced switching to the LN2-Switch II supply line, X32:3 (DI9)
Some short-period industrial processes require power supplied from a Gen-Set (secondary line) rather
than primary (LN1-Switch I) line power, to avoid any possible supply anomalies and to guarantee a
higher level of reliability.
Forced switching to the secondary (LN2-Switch II) line can be easily carried out keeping this input
closed (only in the Automatic Mode).
This operation starts the complete transfer to the secondary line switching procedure:
Gen-Set start
Primary line (LN1-Switch I) change-over switch opening
Secondary line (LN2-Switch II) change-over switch closing
The power supply from the secondary line remains as long as this command is active. When the
command is disarmed, the reverse transfer to the primary supply line switching procedure is started.
Generator is stopped as in normal back-switching procedure.
6.2.6.5 The command to startup the generator, X32:2 (DI10)
When this input is activated the generator is started. The generator will not stop when this input is
inactivated. It has to be done by using normal generator stop command. See page 86: Generator
Control.
6.2.6.6 Voltage sensors input
Voltage sensors are the same on the primary (LN1-Switch I) and secondary (LN2-Switch II) lines.
The net sensor is able to detect the following anomalies:
Undervoltage and overvoltage
Phase loss
Voltage unbalance
Invalid frequency
The net sensor monitors the primary supply line in order to start the switching procedure from the
primary to the secondary line in the case of network anomalies. Equally, the net sensor enables the
reverse switching procedure when the primary supply line returns.
6.2.6.7 Measurements
Voltage:
Frequency:
1%
1%
55
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
7. Operating
7. Operating
Never open any covers on the product. There may be dangerous external control
voltages inside the OTM_ automatic transfer switch even if the voltage is turned off.
Never handle control cables when the voltage of the OTM_ automatic transfer switch or
external control circuits are connected.
Exercise sufficient caution when handling the unit.
7.1 Electrical operation
You can operate the OTM_ automatic transfer switch electrically by using the keypad of the automatic
control unit OMD_ in Manual Mode or automatically in Auto Mode.
To operate the switch electrically:
1.
Release the handle from the switch panel by pushing down the locking latch under the switch
panel and pulling the handle off, see Figure 7.1.
Figure 7.1
Releasing the handle
Electrical control is disabled if the handle is attached to the switch panel.
56
1SCC303003M0204, rev. D
7. Operating
2.
Turn the Motor/Manual selection switch to the Motor (M) position, see Figure 7.2.
Figure 7.2
3.
Installation and operating instructions, OTM_C_D_
Motor/Manual selection switch in the Motor (M) position
Operate the OTM_ automatic transfer switch with the keypad of the automatic control unit OMD_ in
Manual Mode or automatically in Auto Mode.
In automatic mode OMD200 and OMD300 are always operated from position I to position II (or from II to
I) without stopping it in position O. OMD800 can be stopped in position O by setting delay time on Dead
Band I to II. For details, see pages 82-83. For example, if switch I is closed and you push key II, the
automatic control unit OMD_ first runs switch I in the open position and then the control unit runs switch
II from the open to the closed position.
The motor operator is protected from overloading by a fuse (F1) under the motor
operator. Only use the same type of fuse that is described on the label close to the fuse.
57
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
7. Operating
7.1.1 Operating the switch electrically / Manual Mode
Selecting the automatic control unit OMD_ to the Manual Mode:
a.
b.
c.
Make sure that the power LED is ON, see the Figure 7.3/ .
If the Auto LED is OFF / , the automatic control unit is in Manual Mode.
If the Auto LED is ON, push the Auto key once / . The Auto LED switches to OFF and the
automatic control unit OMD_ is in Manual Mode / .
Figure 7.3
Selecting the automatic control unit OMD_ to Manual Mode
To select the switch to operate by the automatic control unit OMD_ in Manual Mode:
a.
b.
c.
d.
e.
Push the appropriate I, O or II key.
When pushing the I-key (see the Figure 7.4/ or Figure 7.5/ ), the I-switch (lower) will be in the
ON position (the status and the line indication, see the Figure 7.4/ or the Figure 7.5/ ) and the
II-switch (upper) will be in the OFF position. If the I-switch is already in the ON position, pushing
the I-key does not have any influence.
When pushing the O-key, the I-switch will be in the OFF position. The II-switch remains in the
OFF position.
When pushing the II-key, the II-switch will be in the ON position and the I-switch will be in the
OFF position.
If you push the I-key while the II-switch is in the ON position, first the II-switch opens (OFF position)
and then the I-switch closes its contacts (ON position).
When the automatic control unit is in Manual Mode, the generator can’t be operated.
58
1SCC303003M0204, rev. D
7. Operating
Installation and operating instructions, OTM_C_D_
Figure 7.4
Selecting the switch to operate, the switch status and the chosen line indication with
LEDs in OMD100, OMD200 or OMD300
Figure 7.5
Selecting the switch to operate, the switch status and the chosen line indication in display
terminal in OMD800
59
1SCC303003M0204, rev. D
7. Operating
Installation and operating instructions, OTM_C_D_
If a new command is given before the switch has reached the position of the
previous command, the fuse (F1) may operate.
Figure 7.6
Manual Mode control
Pushing of the O-key (= O-command) will override the commands of the other keys. For example, if you
simultaneously give an O-command and another command (I or II), the automatic transfer switch OTM_
is driven to the OFF position.
7.1.2 Operating the switch electrically / Automatic Mode
Selecting the automatic control unit OMD_ to the Automatic Mode:
a.
b.
c.
d.
Make sure that power LED is ON, see the Figure 7.7/ .
Push the Auto key once / .
If Auto LED is ON, the automatic control unit is in Automatic Mode / .
If the Auto LED is OFF, push the Auto key again / , the Auto LED switches to ON /
automatic control unit is in Automatic Mode.
Figure 7.7
Selecting the automatic control unit OMD_ to Automatic Mode
See the OMD_ Automatic Mode operation in Sections 9-13.
60
1SCC303003M0204, rev. D
and the
Installation and operating instructions, OTM_C_D_
7. Operating
7.1.3 Selection of delay time, voltage threshold and TEST function
The delay time and the voltage threshold are set by the rotary switches in automatic control units
OMD100, OMD200 and OMD300. The settings in OMD800, see the Section 11.
Ts = Delay time for automatic switching
The delay time is the time before activating the switching sequence and the back-switching sequence.
Available selections for the delay time are: 0, 5, 10, 15, 20, 25, 30 s.
Lim = Voltage threshold with TEST function
The available selections for voltage threshold in OMD100 are: ± 5, ± 10, ± 15, ± 20 %. In OMD200 and
OMD300 the available selections for voltage threshold are: ± 5, ± 10, ± 15, ± 20, ± 25, ± 30 %, see the
available settings / voltage in the Figure 7.9. By setting the voltage threshold, the unbalance is also set to
the same level.
When the device is in Manual mode and the Lim rotary switch is set to the TEST position, the automatic
control unit (OMD100, OMD200 or OMD300) enters the test sequence. In test sequence it is possible to
simulate switching and back-switching sequences step by step by pushing the AUTO key. If device is in
AUTO mode and the Lim rotary switch is set to the TEST position, nothing will happen. In this case the
voltage threshold is always set to the maximum.
Figure 7.8
Selection of delay time and voltage threshold in OMD100
Figure 7.9
Selection of delay time and voltage threshold in OMD200 and OMD300
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1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
7. Operating
Steps in the TEST sequence are:
1.
2.
3.
4.
Push AUTO; generator starts (skipped if the generator is not in use)
Push AUTO; switch to II
Push AUTO;switch to I
Push AUTO; stop generator (skipped if the generator is not in use)
Pushing AUTO after that; sequence restarts. The user can stop the TEST sequence by turning the Lim
rotary switch back to the voltage threshold wanted. After stopping the TEST sequence the device returns
to the normal functionality in MANUAL mode and the settings are exactly the same as they were before
starting the TEST sequence. By pushing AUTO key once after stopping test sequence the device is set
to the AUTO mode.
Figure 7.10
Lim rotary switch is set to the TEST function in OMD100 (left) and in OMD200 and
OMD300 (right)
7.2 Manual operation using the handle
You can operate the switch manually by using the handle that is included in the delivery.
To control the switch manually:
1.
Turn the Motor/Manual selector to the Manual (Man) position, see Figure 7.11. The motor operator is
switched off and electrical control is prevented.
Figure 7.11
Motor/Manual selection in the Man position
62
1SCC303003M0204, rev. D
7. Operating
2.
Installation and operating instructions, OTM_C_D_
Attach the handle by pressing it to the switch panel until it clicks into place. You can attach the
handle in all positions; see Figure 7.12.
Figure 7.12
Attaching the handle
Electrical control is prevented when the handle is attached to the switch panel.
3.
Operate the OTM_ automatic transfer switch by turning the handle to the required position (I, O, II).
When the handle is attached, the automatic control unit OMD_ will automatically be in Manual Mode.
The Alarm LED on the automatic control unit will light with the Power LED. The Auto LED will be OFF, see
Figure 7.13. When the handle is removed, the automatic control unit will stay in Manual Mode and the
Alarm LED will be OFF.
Figure 7.13
Alarm LED is ON while the handle is attached and the automatic control unit will
automatically be in Manual Mode
When the automatic control unit is in Manual Mode, the generator can’t be operated.
63
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
7. Operating
7.3 Locking
You can lock the OTM_ automatic transfer switch to a specific position.
7.3.1 Locking the electrical operation
To disable electrical operation, lock the locking latch with a padlock. After the locking latch has been
locked, the switch cannot be operated electrically. You can lock the electrical operation to any position
(I, O, II).
To lock electrical operation:
1.
2.
Pull up the locking latch under the switch panel.
Place the padlock under the latch, see Figure 7.14.
Figure 7.14
Locking the electrical operation
You cannot attach the handle when electrical control is locked.
7.3.2 Locking the manual operation
By default, manual operation can only be locked to position O. Locking to positions I and II is optional
and possible only with modifications to the switch panel.
To lock manual operation:
1.
2.
Turn the handle to the required position.
Pull out the clip from the handle and place the padlock on the handle; see Figure 7.15.
64
1SCC303003M0204, rev. D
7. Operating
Figure 7.15
Installation and operating instructions, OTM_C_D_
Locking the manual operation
The handle cannot be removed when padlocked to position O.
The following chart shows the locking state information (the voltage on motor operator supply needed).
Optional; see X2 in the control circuit diagrams, pages 46-53.
Figure 7.16
Locking state information
65
1SCC303003M0204, rev. D
8. Technical data
Installation and operating instructions, OTM_C_D_
8. Technical data
8.1 Automatic transfer switch OTM_C_D, power circuits
Automatic transfer switch, power circuit
Value
OTM_C1D_ (OMD 100)
Rated operational voltage Ue
Phase - neutral
380 Vac ±20% + N
220 Vac ±20%
Rated frequency
50 Hz ±10%
Rated impulse withstand voltage Uimp
4 kV
OTM_C2D_/OTM_C3D_ (OMD 200/300)
Rated operational voltage Ue
Phase - neutral
208 - 415 Vac ±20% + N
120 - 240 Vac ±20%
Rated frequency
50 – 60 Hz ±10%
Rated impulse withstand voltage Uimp
6 kV
OTM_C8D_ (OMD 800)
Rated operational voltage Ue
Phase - neutral
100 - 415 Vac ±20%
57,7 - 240 Vac ±20%
Rated frequency
50 – 60 Hz ±10%
Rated impulse withstand voltage Uimp
6 kV
1 phase system:
Rated operational voltage Ue
Phase - neutral
57,7 - 240 Vac ±20%
AUX voltage, if voltage 57,7 - 109 Vac
24 Vdc – 110 Vdc (-10 to +15%)
Operating temperature, without derating
-5... +40 °C
Transportation and storage temperature
-40... +70 °C
Altitude
Max. 2000 m
Table 8.1
General technical data of automatic transfer switches
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1SCC303003M0204, rev. D
8. Technical data
Installation and operating instructions, OTM_C_D_
8.2 Motor operator OME_, control circuits
Motor operator, control circuit
Value
Rated operational voltage U [V]
220 - 240 Vac 50-60 Hz
Cabling
Operating voltage range
0.8... 1.2 x U
Operating angle
90° 0-I, I-0, 0-II, II-0; 180° I-0-II
Operating time
See the Table 8.3
Protection degree
IP 20, front panel
Voltage supply
PE N L
F2
1,5 -2,5 mm2
Max. MCB 16 A
State information of locking X2 (no SELV): optional
Handle attached or motor operator locked
11-12-14 (C/O)
1,5 -2,5 mm2
Locking motor operator
23-24 (NO)
1,5 -2,5 mm2
Rated impulse withstand voltage Uimp
4 kV
Operating temperature
-25... +55 °C
Transportation and storage temperature
-40... +70 °C
Altitude
Max. 2000 m
Table 8.2
General technical data of motor operators
Type
Voltage
U
220-240
VAC
[V]
Nominal
current a)
In
[A]
OTM160...250_C_1D220C
220 Vac
0,2
OTM160...250_C_2/3D230C
230 Vac
OTM160...250_C_8D230C
Current
Inrush a)
[A]
Operating
transfer
time a)
I-II, II-I
[s]
Total
transfer
time a) b)
I-II, II-I
[s]
OFF-time
when
operating a)
I-II or II-I
[s]
1,3
2,5 – 5,0
2,5 – 35,0
0,4 – 1,0
0,2
1,3
2,0 – 4,0
2,0 – 35,0
0,4 – 1,0
230 Vac
0,2
1,3
1,5 – 3,0
1,5 – 35,0
0,4 – 1,0
OTM315...400_C_1D220C
220 Vac
0,5
2,1
2,0 – 5,0
2,0 – 35,0
0,4 – 1,0
OTM315...400_C_2/3D230C
230 Vac
0,5
2,1
2,0 – 5,0
2,0 – 35,0
0,4 – 1,0
OTM315...400_C_8D230C
230 Vac
0,5
2,1
1,5 – 3,0
1,5 – 35,0
0,4 – 1,0
OTM630...800_C_1D220C
220 Vac
0,7
2,8
2,0 – 5,0
2,0 – 35,0
0,4 – 1,0
OTM630...800_C_2/3D230C
230 Vac
0,7
2,8
2,0 – 5,0
2,0 – 35,0
0,4 – 1,0
OTM630...800_C_8D230C
230 Vac
0,7
2,8
1,5 – 3,0
1,5 – 35,0
0,4 – 1,0
OTM1000...1600_C_1D220C
220 Vac
1,8
7,7
3,0 – 6,0
3,0 – 36,0
0,6 – 1,5
OTM1000...1600_C_2/3D230C
230 Vac
1,8
7,7
3,0 – 6,0
3,0 – 36,0
0,6 – 1,5
OTM1000...1600_C_8D230C
230 Vac
1,8
7,7
2,5 – 4,0
2,5 – 35,0
0,6 – 1,5
Under nominal conditions
b)
Ts 0s (Min.) - Ts 30s (Max.)
a)
Table 8.3
Specified technical data of automatic transfer switches
Measurement
Value
Handle attached or motor operator locked
11-12-14 (C/O): 5 A AC-1 / 250 V
Locking motor operator
23-24 (NO): 5 A AC-1 / 250 V
SCPD
Table 8.4
Max. MCB C2A
Terminals (X2) for state information of locking, optional
67
1SCC303003M0204, rev. D
Installation and operating instructions, OTM_C_D_
9. Using automatic control unit OMD100
9. Using automatic control unit OMD100
9.1 Interface
Figure 9.1
Interface of OMD100
9.2 Configuration
9.2.1 Rotary Switches
Figure 9.2
Selection of delay time and voltage threshold, the factory settings are shown in the figure
Delay time (Ts)
Delay time for the automatic switching is set by a rotary switch (Ts). Delay time is the time before
activating the switching sequence and the back-switching sequence, when an anomaly has occurred.
Available selections for delay time are: 0, 5, 10, 15, 20, 25, 30 s.
Voltage threshold (Lim) with TEST function
Voltage threshold is set by a rotary switch (Lim). Available selections for voltage threshold are: ± 5, ± 10,
± 15, ± 20 %. Setting the voltage threshold also sets the unbalance to the same level.
The TEST position enables simulation of switching sequences step-by-step, see chapter 9.3 TEST
sequence, page 71.
68
1SCC303003M0204, rev. D
9. Using automatic control unit OMD100
Installation and operating instructions, OTM_C_D_
9.2.2 Keypad
Figure 9.3
Keypad on OMD100
AUTO key
Selecting the automatic control unit OMD100 to the manual or automatic mode. An active alarm can
reset by the AUTO key.
O key
Setting the automatic transfer switch OTM_C_D to the OFF position in manual and auto mode; both
switches (I and II) are in the OFF position. After pressing the O-key the automatic control unit ODM is
always in manual mode.
I key
Setting in manual mode the automatic transfer switch OTM_C_D to position I, when the I-switch will be
in the ON position and the II-switch will be in the OFF position.
II key
Setting in manual mode the automatic transfer switch OTM_C_D to position II, when the II-switch will be
in the ON position and the I-switch will be in the OFF position.
69
1SCC303003M0204 rev. D
Installation and operating instructions, OTM_C_D_
9. Using automatic control unit OMD100
9.2.3 LEDs
Figure 9.4
LEDs on OMD100
LN 1 - Switch I
A red LN 1 LED signals the status of the line LN 1, when the switch I is ON. Line status is explained in
the table below.
LN 2 - Switch II
A red LN 2 LED signals the status of the line LN 2, when the switch II is ON. Line status is explained in
the table below.
Line Status
LED Indication
Voltage OK
ON
No voltage
OFF
Overvoltage
Fast blinking (5 Hz)
Undervoltage
Blinking (1 Hz, 50% ON / 50% OFF)
Invalid frequency
Blinking (1 Hz, 90% ON / 10% OFF)
Unbalance
Blinking (1Hz, 10% ON / 90% OFF)
Table 9.1
Line status indication
Switch in position I (I)
A red I LED is ON, when the automatic transfer switch OTM_C_D is in the I position (the I-switch is ON
and the II-switch is OFF), the LED is OFF otherwise. If transition from the O position to the I position fails,
the I LED will blink.
Switch in position II (II)
A red II LED is ON, when the automatic transfer switch OTM_C_D is in the II position (the II-switch is ON
and the I-switch is OFF), the LED is OFF otherwise. If transition from the O position to the II position fails,
the II LED will blink.
70
1SCC303003M0204, rev. D
9. Using automatic control unit OMD100
Installation and operating instructions, OTM_C_D_
Alarm
A red Alarm LED signals an external alarm. Alarm status is explained in the table below. An active alarm
is set off by pushing the AUTO key.
Alarm Status
LED Indication
External alarm (logic locked) or handle is on
ON
Switching logic alarm
Blinking
No alarm
OFF
Table 9.2
Alarm status indication
NOTE: When the handle is removed, the automatic control unit will stay in manual mode and the Alarm
LED will be OFF.
When the Alarm LED is ON or blinking, check the state of the automatic transfer
switch and repair the possible fault situation. An active alarm is set off by pushing the
AUTO key.
Auto
A green Auto LED signals the automatic or the manual mode. When the OMD100 is in automatic mode,
the Auto LED is ON. When the device is in manual mode, the Auto LED is OFF. In test sequence the Auto
LED is blinking.
Power
A green Power LED signals the power status. When power is ON, the Power LED is ON. The OMD100
will remain in a standby state at least one minute after power failure. A blinking Power LED indicates
standby mode.
9.3 TEST sequence
Figure 9.5
Lim rotary switch is set to the TEST position
When the Lim rotary switch is set to the TEST position, automatic control unit OMD100 enters the
test sequence. All the LEDs are first blinking a couple of times to give the information that the LED is
functioning.
In the TEST position it is possible to simulate switching and back-switching sequences step-by-step by
pressing the AUTO key. The user can interrupt the simulation at any place and return to normal use of
the device. More information, see page 62.
NOTE: In the TEST sequence the power circuit is switched on!
NOTE: After testing the user must ensure that the device is not left in the TEST position by accident.
71
1SCC303003M0204 rev. D
Installation and operating instructions, OTM_C_D_
10. Using automatic control units OMD200 and OMD300
10. Using automatic control units OMD200 and OMD300
10.1 Interface
Figure 10.1
Interface of OMD200 and OMD300
10.2 Configuration
10.2.1 Rotary Switches
Figure 10.2
Selection of delay time and voltage threshold, the factory settings are shown in the figure,
the available voltage threshold settings / voltage in the table
Delay time (Ts)
Delay time for the automatic switching is set by a rotary switch (Ts). Delay time is the time before
activating the switching sequence and the back-switching sequence, when an anomaly has occurred.
Available selections for delay time are: 0, 5, 10, 15, 20, 25, 30 s.
Normally with this rotary switch is also set the Generator stop delay Gs to the same value as Delay time
Ts. The DIP-switch 24-4 has to be in OFF-position (default). If the DIP-switch 24-4 is in ON-position, the
Generator stop delay Gs will always be 5 minutes. See page 36.
Voltage threshold (Lim) with TEST function
Voltage threshold is set by a rotary switch (Lim). Available selections for voltage threshold are: ± 5, ± 10,
± 15, ± 20, ± 25, ± 30 %, see the available settings / voltage in Figure 10.2. Setting the voltage threshold
also sets the unbalance to the same level.
72
1SCC303003M0204, rev. D
10. Using automatic control units OMD200 and OMD300
Installation and operating instructions, OTM_C_D_
The TEST position enables simulation of switching sequences step-by-step, see chapter 10.3 TEST
sequence, page 75.
10.2.2 Keypad
Figure 10.3
Keypad on OMD200 and OMD300
AUTO key
Selecting the automatic control unit OMD200 or OMD300 to the manual or automatic mode. An active
alarm can reset by the AUTO key.
O key
Setting the automatic transfer switch OTM_C_D to the OFF position in manual and auto mode; both
switches (I and II) are in the OFF position. After pressing the O-key the automatic control unit OMD_ is
always in manual mode.
I key
Setting in manual mode the automatic transfer switch OTM_C_D to position I, when the I-switch will be
in the ON position and the II-switch will be in the OFF position.
II key
Setting in manual mode the automatic transfer switch OTM_C_D to position II, when the II-switch will be
in the ON position and the I-switch will be in the OFF position.
73
1SCC303003M0204 rev. D
Installation and operating instructions, OTM_C_D_
10. Using automatic control units OMD200 and OMD300
10.2.3 LEDs
Figure 10.4
LEDs on OMD200 and OMD300
LN 1 - Switch I
A red LN 1 LED signals the status of the line LN 1, when the switch I is ON. Line status is explained in
the table below.
LN 2 - Switch II
A red LN 2 LED signals the status of the line LN 2, when the switch II is ON. Line status is explained in
the table below.
Line Status
LED Indication
Voltage OK
ON
No voltage
OFF
Overvoltage
Fast blinking (5 Hz)
Undervoltage
Blinking (1 Hz, 50% ON / 50% OFF)
Invalid frequency
Blinking (1 Hz, 90% ON / 10% OFF)
Unbalance
Blinking (1Hz, 10% ON / 90% OFF)
Table 10.1
Line status indication
Switch in position I (I)
A red I LED is ON, when the automatic transfer switch OTM_C_D is in the I position (the I-switch is ON
and the II-switch is OFF), the LED is OFF otherwise. If transition from the O position to the I position fails,
the I LED will blink.
Switch in position II (II)
A red II LED is ON, when the automatic transfer switch OTM_C_D is in the II position (the II-switch is ON
and the I-switch is OFF), the LED is OFF otherwise. If transition from the O position to the II position fails,
the II LED will blink.
Alarm
A red Alarm LED signals an external alarm. Alarm status is explained in the table on next page. An active
alarm is set off by pushing the AUTO key.
74
1SCC303003M0204, rev. D
10. Using automatic control units OMD200 and OMD300
Alarm Status
LED Indication
External alarm (logic locked) or handle is on
ON
Switching logic alarm
Blinking
No alarm
OFF
Table 10.2
Installation and operating instructions, OTM_C_D_
Alarm status indication
NOTE: When the handle is removed, the automatic control unit will stay in Manual Mode and the Alarm
LED will be OFF.
When the Alarm LED is ON or blinking, check the state of the automatic transfer
switch and repair the possible fault situation. An active alarm is set off by pushing the
AUTO key.
Auto
A green Auto LED signals the automatic or the manual mode. When the OMD200 or OMD300 is in
automatic mode, the Auto LED is ON. When the device is in manual mode, the Auto LED is OFF. In the
test sequence, the Auto LED is blinking.
Power
A green Power LED signals the power status. When power is ON, the Power LED is ON. The OMD200
or OMD300 will remain in standby state at least one minute after power failure. A blinking Power LED
indicates standby mode.
10.2.4 External transformer
When OMD200 is used in network, where N is not connected, the external voltage transformer must be
used to drop voltage level. The transformer has to fulfil the following requirements:
It has to be Main to Phase Voltage Transformer
It has to be isolative
Effective value has to be 40 VA (see figure 6.7: Control circuit diagram OMD200, page 48)
10.3 TEST sequence
Figure 10.5
Lim -rotary switch is set to the TEST position
When the Lim rotary switch is set to the TEST position, automatic control unit OMD200 or OMD300
enters the test sequence. All the LEDs are first blinking a couple of times to give the information that the
LED is functioning.
In the TEST position it is possible to simulate switching and back-switching sequences step-by-step by
pressing the AUTO key. The user can interrupt the simulation at any place and return to normal use of
the device. More information, see page 62.
NOTE: In the TEST sequence the power circuit is switched on!
NOTE: After testing the user must ensure that the device is not left in the TEST position by accident.
75
1SCC303003M0204 rev. D
Installation and operating instructions, OTM_C_D_
11. Using automatic control unit OMD800
11. Using automatic control unit OMD800
11.1 Interface
Figure 11.1
Interface of OMD800
Figure 11.2
Keypad of OMD800
11.2 Configuration
11.2.1 Keypad
AUTO
Selecting the automatic control unit OMD800 to the manual or automatic mode. An active alarm is set off
by pushing the AUTO key.
O key
Setting the automatic transfer switch OTM_C_D to the OFF position in manual and auto mode; both
switches (I and II) are in the OFF position. After pressing the O-key the automatic control unit OMD is
always in manual mode.
I key
Setting in manual mode the automatic transfer switch OTM_C_D to position I, when the I-switch will be
in the ON position and the II-switch will be in the OFF position.
II key
Setting in manual mode the automatic transfer switch OTM_C_D to position II, when the II-switch will be
in the ON position and the I-switch will be in the OFF position.
Browsing keys (Enter, ESC, Up, Down)
There are four browsing keys to operate the automatic control unit OMD800 from the display.
Enter
is used to accept function
ESC
is used to return one step backwards
UP
is used to move one step up on the menu
DOWN
is used to move one step down on the menu
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11. Using automatic control unit OMD800
Installation and operating instructions, OTM_C_D_
11.2.2 LEDs
Figure 11.3
LEDs on OMD800
Alarm
A red LED (Alarm) signals an external alarm (switching logic disabled or both automatic transfer switch
positions I and II active). Alarm status is explained in the table below. An active alarm is set off by
pushing the AUTO key.
Alarm Status
LED Indication
External alarm (logic locked) or handle is on
ON
Switching logic alarm
Blinking
No alarm
OFF
Table 11.1
Alarm status indication
NOTE: When the handle is removed, the automatic control unit will stay in Manual Mode and the Alarm
LED will be OFF.
When the Alarm LED is ON or blinking, check the state of the automatic transfer
switch and repair the possible fault situation. An active alarm is set off by pushing the
AUTO key.
Auto
A green Auto LED signals the automatic or the manual mode. When the automatic control unit OMD800
is in automatic mode, the Auto LED is ON. When the device is in manual mode,the Auto LED is OFF. In
test sequence the Auto LED is blinking.
Power
A green Power LED signals the power status. When power is ON, the Power -LED is ON. The automatic
control unit OMD800 will remain in standby state at least one minute after power failure. A blinking
Power LED indicates standby mode.
Tx/Rx
A green Tx/Rx LED signals the state of communication bus. When the LED is on, the automatic control
unit OMD800 is sending data to the bus.
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Installation and operating instructions, OTM_C_D_
11. Using automatic control unit OMD800
11.2.3 Display
The display is a graphic display with following menu pages:
11.2.3.1 Default page
Default page shows the status of the protection devices and the status of two monitored lines and
eventually of the generator. Status is shown as a graphic picture, where graphic LEDs and a specific line
status code indicates the status of LN1 and LN2. When the LED is OFF, there is no voltage in the line and
the status code for the line is 1. When the LED is ON, there is voltage in the line and the status code is
missing. In the case of an anomaly, the LED is OFF and the status code indicates what is at fault. Below
the line status code the measured values of voltage and frequency are shown. Status codes are defined
in the table below:
Code
Status of the line
Explanation
1
No voltage
There is no voltage on line1/line2
2
Undervoltage
Value of voltage is under defined settings
3
Overvoltage
Value of voltage is over defined settings
4
Phase missing
There is one or more phases missing
5
Voltage unbalance
Difference between lowest and highest voltage is too big
6
Incorrect phase sequence
Phases have been swapped (line2 is connected to line3 etc.)
7
Invalid frequency
Value of frequency is out of defined settings
Table 11.2
Line status codes
Figure 11.4
The Default pages show the status of the device and the monitored lines
When the generator is started, the letter G and the “arrow up” symbol on the right side of line 2 (LN2)
status are in the default page. When the generator is stopped, the letter G and the “arrow down” symbol
on the right side of line 2 (LN2) status are in the default page. When the generator is not used, there is no
sign in the default page (see the page 81, Generator Usage).
Figure 11.5
The Default pages show the status of the generator; started or stopped, when in System
Configuration/Generator Usage “Generator in Use” is defined, see page 81
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11. Using automatic control unit OMD800
Installation and operating instructions, OTM_C_D_
11.2.3.2 Main Menu page
From Default page is entered to Main Menu page by pushing the ENTER key. Main Menu page is the
main page that allows entering in all the configuration subpages:
Figure 11.6
The Main Menu page allows the entering in all the configuration subpages
11.2.3.3 System Configuration
The System Configuration subpage can be configured with the attributes of the monitored lines; see
Table 11.3. The attribute selection and its value changes are made by using UP, DOWN and ENTER keys.
The system configuration requires a password. Password consists of 4 numbers, it is given by UP,
DOWN and ENTER keys. The password for the first entering to the system is 0001. Please, change the
password to your own according the guidelines under the subpage Device Configuration; see pages 84
and 85. The password is valid one minute after leaving System Configuration; for example, back to the
Main Menu page. After that time the user have to give the password again when returning to the System
Configuration pages. If the password is forgotten/lost, please, contact product support.
Figure 11.7
System Configuration requires a password
Attribute
Values
Rated operational voltage Ue
100V/57V– 115V/66V - 120V/70V - 208V/120V - 220V/127V - 230V/132V
- 240V/138V - 277V/160V - 347V/200V - 380V/220V - 400V230V - 415V/240V
- 480V/277V
Rated frequency
50Hz and 60 Hz
Number of phases
1-phase / 3-phase with N / 3-phase without N
Secondary load
Not used / Opening only / Opening and Closing
Generator usage
No Generator / Generator in use
Line Priority
No Line Priority / Line 1 (LN 1) - Switch I
Table 11.3
Attributes and values of the System Configuration
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Installation and operating instructions, OTM_C_D_
11. Using automatic control unit OMD800
Rated Operational Voltage Ue
Rated Operational Voltage Ue is the rated voltage of the system. Value is announced as main voltage/
phase voltage, Volts. Factory setting is 400 V.
Figure 11.8
Rated Operational Voltage Ue, factory setting is 400 V
Rated Frequency
Rated Frequency means assigned frequency of the system. Value is announced as Hertz. Factory setting
is 50 Hz.
Figure 11.9
Rated Frequency, factory setting is 50 Hz
Number of Phases
User can choose between a one-phase and a three-phase system with or without N. Three-phase
system with N is the default.
Figure 11.10
Number of phases, three phases with N is the default
Secondary Load
User can choose whether secondary load is Not Used or Opening Only or Opening And Closing. Not
Used is the default.
X24:3 (see control circuit diagram, page 52) is closed in two cases:
1.
2.
‘Secondary Load’ parameter value is changed from ‘Opening Only’ to ‘Not used’
‘Secondary Load’ parameter value is changed from ‘Opening Only’ to ‘Opening and Closing’ and the
changeover switch is in position I
80
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11. Using automatic control unit OMD800
Figure 11.11
Installation and operating instructions, OTM_C_D_
Secondary Load, Not Used is the default
Generator Usage
User can choose No Generator, when generator is not used or Generator in Use, when it is used in the
Line 2 (LN 2) - Switch II. No Generator is the default.
NOTE: Generator should always be connected to the Line 2 (LN 2) - Switch II.
Figure 11.12
Generator Usage, No Generator is the default
Line Priority
User can select the line priority to the Line 1 (LN 1) - Switch I (default) or No Line Priority.
NOTE: Line 2 (LN 2) - Switch II can never have higher priority.
Figure 11.13
Line Priority, Line 1 - Switch I is the default.
11.2.3.4 Device configuration
In this subpage user can set the threshold of all monitored parameters, the delay times and the
communication protocol MODBUS values, see the Table 11.4. User can also select the language and
change the password in this subpage. The password consists of four numbers, and is chosen with the
arrow and enter keys. For all other attributes user can select and change the value by using the UP,
DOWN and ENTER keys.
Figure 11.14
OMD800 configuration, requires a password
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Installation and operating instructions, OTM_C_D_
11. Using automatic control unit OMD800
Attribute
Values
Voltage Thresholds
-30% …-5%, +5% … +30%, step ± 1%, see the Table 11.5
(unbalance is set to same level)
Frequency Thresholds
-10% … -1%,+1% … +10%, step ± 1%
Delay Times
Switching, 0…60s
Dead Band I to II, 0…60s
Back Switching, 0s, 1s, …59s, 1min, 2min, …, 30min
Dead Band II to I, 0…60s
Generator Stop, 0s, 1s, …59s, 1min, 2min, …, 30min
Modbus
Modbus Address
Modbus Baud Rate
Modbus Stop Bits
Modbus Parity
Language Selection
English
Francais
Italiano
Espanol
Suomi
Deutsch
Change password
Four numbers
Retype new password
Four numbers
Table 11.4
Attributes and values for the Device Configuration
Voltage Thresholds
User can set voltage thresholds both minimum and maximum values. Factory settings are min -20% and
max +20%. On the table 11.5 are shown values which are valid when auxiliary power supply (AUX) is not
used. Value of the Voltage threshold Max is also used as the voltage unbalance level.
3 phases
1 phases
Voltage / V
Voltage threshold
Min
Max
100/57
115/66
120/70
-20%
-30%
-30%
+30%
+30%
+30%
208/120
220/127
230/132
-30%
-30%
-30%
240/138
277/160
347/200
Voltage / V
Voltage threshold
Min
Max
208/120
220/127
230/132
-20%
-20%
-25%
+30%
+30%
+30%
+30%
+30%
+30%
240/138
277/160
347/200
-30%
-30%
-30%
+30%
+30%
+30%
-30%
-30%
-30%
+30%
+30%
+30%
380/220
400/230
415/240
-30%
-30%
-30%
+30%
+30%
+30%
380/220
400/230
415/240
-30%
-30%
-30%
+30%
+30%
+30%
480/277
-30%
+20%
480/277
-30%
+20%
Table 11.5
Values for Voltage Thresholds suitable for different Main Voltages in 3 phases and 1 phase
system. These values are valid, when auxiliary power supply (AUX) is not used. If the AUX
is used, Min is -30% for all voltages and Max is according to this table.
If the AUX is used, Min is -30% and Max is according to this table.
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11. Using automatic control unit OMD800
Figure 11.15
Installation and operating instructions, OTM_C_D_
Voltage Threshold, factory settings: min -20%, max 20%
Frequency Thresholds
User can set frequency thresholds both minimum and maximum values. Factory settings are min -1%
and max 1%.
Figure 11.16
Frequency Threshold, factory settings: min -1%, max 1%
Delay Times
User can set delay times for switching delay (Ts), back switching delay (TBs), dead band delays in
O-position while changing from I to II or from II to I and generator stop delay (Gs). Values for delays are in
the Table 11.4. Factory settings for delay times: Switching 0s, Dead band from I to II 0s, Back switching
0s, Dead band from II to I 0s, Generator stop 0s
Figure 11.17
Factory settings for delay times: Switching 0s, Dead band from I to II 0s, Back switching
0s, Dead band from II to I 0s, Generator stop 0s
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Installation and operating instructions, OTM_C_D_
11. Using automatic control unit OMD800
Modbus
Communication protocol. User can set Address, Baud Rate, Stop Bits and Parity for the Modbus.
Address means the Modbus address of the device. The address can be chosen between 1 … 247. The
Baud Rate can be 9600 –19200 – 38400 kbps. Stop bit can be set 0 or 1 and the parity can be set even,
odd or none. Factory settings are Modbus address 1, Modbus Baud Rate 9600, Modbus Stop Bit 1 and
Modbus Parity None.
Tx/Rx LED indicates data transmission: LED is ON only when data is transmitted from the OMD800.
Figure 11.18
Modbus
Language Selection
In this page it is possible to choose the language. The choices are English, French, Italian, Spanish,
Finnish and German. Factory setting is English.
Figure 11.19
Language selection, English as default
Change Password
In this page it is possible to change password. The password consists of four numbers. In this page it is
always shown as 0000. New password is set by using UP, DOWN and ENTER keys.
Figure 11.20 Change the password
84
1SCC303003M0204, rev. D
11. Using automatic control unit OMD800
Installation and operating instructions, OTM_C_D_
Retype New Password
The new password has to be confirmed by retyping it. After confirmation, the user is returned to the
Device Configuration menu and on the bottom of the display the message PASSWORD CHANGED is
shown. If password confirmation does not succeed, on the bottom of the display is shown the message
INVALID PASSWORD and the old password is still valid. If the password is forgotten/lost, please, contact
product support.
Figure 11.21
Confirmation of the new password
11.2.3.5 Diagnostics
Under Diagnostics are submenus: Measured Values, Alarm Log, Counters, Generator Control and Test
Sequence.
Figure 11.22
Diagnostics
Measured Values
On the display the measurements of Main Voltages and Phase Voltages are shown. Also shown on both
pages is the frequency.
Figure 11.23
Measured Values: Main Voltages with frequency and Phase Voltages with frequency
85
1SCC303003M0204 rev. D
Installation and operating instructions, OTM_C_D_
11. Using automatic control unit OMD800
Alarm log
Under Alarm Log are submenus: View Log and Clear Log.
View Log
On this page the latest alarms are shown. The number of alarms is shown at the top of the page. The log
can contain a maximum of the 20 latest alarms. The latest alarm is always at the top of the list.
Clear Log does not have its own page. The log is cleared when Clear Log is chosen and the Enter key is
pressed. Alarms must be reseetd when cleaning Alarms.
Figure 11.24
Alarm Log: 20 latest alarms, Clear Log will empty the log.
Counters
On this page are shown the summary of operations. One operation is from I to O or from II to O or from
O to I or from O to II, eg. the total summary of the operations from I to II is two operations. Return back
to Diagnostics menu by pushing the ESC key.
Figure 11.25 Counters page will show the summary of operations
Generator Control
User can start or stop the generator if generator is in use (see the selection of “Generator Usage” on
page 81). Return back to Diagnostics menu by pushing the ESC key.
Figure 11.26 Generator control if generator is in use
TEST sequence
TEST sequence carries out the automatic switching sequence with delay times and generator control.
The OMD800 has to be in manual mode. If the changeover switch is in position I, normal switching
sequence with generator start is executed. If in position O or II, back switching sequence is executed
and generator stopped. Normal operation (Manual mode) is returned by pressing the AUTO key. LEDs
(Power, Auto, Alarm) are blinked twice when entering test sequence. Tx/Rx LED is linked directly to
Modbus communication and is not blinked.
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Installation and operating instructions, OTM_C_D_
11. Using automatic control unit OMD800
Figure 11.27
TEST sequence carries out the automatic switching sequence, the Auto LED is blinking
during TEST sequence
11.2.4 Dialogue functions required for OMD800 status information via Modbus
For monitoring via Modbus the OMD800 status information the dialogue functions are required. The
configuration of OMD800 can be done only via the OMD800 display and keypad, but the status
information of the monitored lines and of the controlled automatic transfer switch can be monitored via
Modbus in the control room. In detail, the following information is available:
Description
Address
Values
LN1 - Switch I -line status
2000
0 = Voltage OK
1 = No voltage
2 = Undervoltage
3 = Overvoltage
4 = Phase missing
5 = Voltage unbalance
6 = Incorrect phase sequence
7 = Invalid frequency
LN2 - Switch II -line status
2001
0 = Voltage OK
1 = No voltage
2 = Undervoltage
3 = Overvoltage
4 = Phase missing
5 = Voltage unbalance
6 = Incorrect phase sequence
7 = Invalid frequency
Switching status
2002
0 = Sequence not required (line used = primary)
1 = Sequence in progress (primary secondary)
2 = Sequence completed (line used = secondary)
3 = Sequence rev in progress (secondary primary)
4 = Sequence failed
Change-over switch status
2005
1=I
2=O
3 = II
Generator status
2006
1 = Started
2 = Stopped
3 = ALARM
Alarms (bit mask)
2007
0x000 = No Alarms
0x0001 = Open 1 Failure
0x0002 = Open 2 Failure
0x0008 = Close 1 Failure
0x0010 = Close 2 Failure
0x0100 = Force manual (handle attached)
0x0200 = External fault
0x1000 = Generator alarm
Table 11.5
Dialogue functions of OMD800
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Installation and operating instructions, OTM_C_D_
12. Technical data
12. Technical data of the automatic control units OMD_
12.1 OMD100
Operating voltage
Main voltage
380Vac (±20%) + N
Phase voltage
220Vac (±20%)
Frequency
50 Hz (±10%)
Voltage and frequency sensing precision
Voltage
5%
Frequency
1%
Relay utilization category
8 A, AC1, 250 V
Over voltage category
III, Uimp 4 kV
IP rating
IP20 for the front panel
Temperature area
– 20 to + 60 °C
Transportation and storage temperature
– 40 to + 90 °C
Humidity
with condensation
5 % - 98 %
without condensation
5 % - 90 %
Table 12.1
Technical data of OMD100
12.2 OMD200 / OMD300
Operating voltage
Main voltage
208Vac - 480 Vac (±20%) + N
Phase voltage
120Vac - 277 Vac (±20%)
Frequency
50 Hz, 60 Hz (±10%)
Voltage and frequency sensing precision
Voltage
5%
Frequency
1%
Relay utilization category
8 A, AC1, 250 V
1/3 phase
Over voltage category
III, Uimp 6 kV
IP rating
IP20 for the front panel
Temperature area
– 20 to + 60 °C
Transportation and storage temperature
– 40 to + 90 °C
Humidity
with condensation
5 % - 98 %
without condensation
5 % - 90 %
Table 12.2
Technical data of OMD200 and OMD300
88
1SCC303003M0204, rev. D
12. Technical data
Installation and operating instructions, OTM_C_D_
12.3 OMD800
Operating and measuring voltage area on 3 phase system:
Main voltage
100Vac - 480Vac (±20%)
Phase voltage
57,7Vac - 277Vac (±20%)
AUX voltage
24Vdc - 110Vdc (-10% to +15%)
Frequency
50Hz and 60Hz (±10%)
Operating and measuring voltage area on 1 phase system:
Phase voltage
57,7Vac - 277Vac(1 (±20%)
AUX voltage
24Vdc - 110Vdc(2 (-10% to +15%)
Frequency
50Hz and 60Hz (±10%)
Voltage and frequency sensing precision
Voltage
1%
Frequency
1%
Relay utilization category
8 A, AC1, 250 V
Relay utilization category for connector X26:
6A, AC1, 250V
Over voltage category
III, Uimp 6 kV
IP rating
IP20 for the front panel
Temperature area
– 20 to + 60 °C
Transportation and storage temperature
– 40 to + 90 °C
Humidity
(1
with condensation
5 % - 98 %
without condensation
5 % - 90 %
If voltage level is between 57,7 – 109 Vac, AUX power supply must be used.
Table 12.3
Technical Data of OMD800
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Installation and operating instructions, OTM_C_D_
13. Troubleshooting
13. Troubleshooting
13.1 OMD100, OMD200 or OMD300
State
Action
Automatic transfer switch is stuck in position I and does
not open. After 3 seconds the Alarm LED blinks and the I
LED is ON.
The alarm can be reset by the AUTO key. If the alarm does
not disappear, there is some malfunction in the changeover switch and it has to be changed.
Automatic transfer switch in position II does not open.
After 3 seconds the Alarm LED is blinking and the II LED
is ON.
The alarm can be reset by the AUTO key. If the alarm does
not disappear, there is some malfunction in the changeover switch and it has to be changed.
Automatic transfer switch does not change to position I.
After 3 seconds the Alarm LED and the I LED are blinking.
The alarm can be reset by the AUTO key. If the alarm does
not disappear, there is some malfunction in the changeover switch and it has to be changed.
Automatic transfer switch does not change to position II.
After 3 seconds the Alarm LED and the II LED are blinking.
The alarm can be reset by the AUTO key. If the alarm does
not disappear, there is some malfunction in the changeover switch and it has to be changed.
Table 13.1
Fault situations in OMD100, OMD200 or OMD300
90
1SCC303003M0204, rev. D
13. Troubleshooting
Installation and operating instructions, OTM_C_D_
13.2 OMD800
Alarms are showed with a dedicate message on the display of OMD800. Alarm messages are explained
in the table below.
Message
Fault
Action
Open 1 Failure
Automatic transfer switch is stuck in
position I and does not open. After 3
seconds the Alarm LED turns ON.
The alarm can be reset by the AUTO key. If
the alarm does not disappear, there is some
malfunction in the change-over switch and it has
to be changed.
Open 2 Failure
Automatic transfer switch in position
II does not open. After 3 seconds the
Alarm LED turns ON.
The alarm can be reset by the AUTO key. If
the alarm does not disappear, there is some
malfunction in the change-over switch and it has
to be changed.
Open 3 Failure
Device controlling of the secondary
loads fails. After 3 seconds the Alarm
LED turns ON.
The alarm can be reset by the AUTO key. If
the alarm does not disappear, there is some
malfunction in the automatic control unit OMD800
and it has to be changed.
Close 1 Failure
Switching to position I fails.
Alarm can be reset by AUTO-key. If alarm does
not disappear, there is some malfunctioning the
change-over switch and it has to be changed.
Close 2 Failure
Switching to position II fails.
The alarm can be reset by the AUTO key. If
the alarm does not disappear, there is some
malfunction in the change-over switch and it has
to be changed.
Close 3 Failure
Connection to the secondary load
fails.
The alarm can be reset by the AUTO key. If
the alarm does not disappear, there is some
malfunction in the automatic control unit OMD800
and it has to be changed.
Gen Start Failure
Generator does not start.
Check generator.
Generator Stopped
Generator stops without stop
command.
Check generator.
Force Manual
Handle mounted.
The alarm is active as long as handle is mounted.
External Fault
Both automatic transfer switch
position status inputs are active.
Check connections between OMD and the
change-over switch
Generator Alarm
Generator malfunctioning.
Check generator.
Powersave
Missing both lines.
The alarm is cancelled when power returns.
Table 13.2
Alarms in OMD800
13.3 Explanations of internal faults OMD100, OMD200,
OMD300, OMD800
When digital Input 1 and 2 are both active, logic is locked and the Alarm LED is ON.
When digital Input 3 is active, logic is locked and the Alarm LED is ON.
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Installation and operating instructions, OTM_C_D_
13. Troubleshooting
13.4 Change-over switch does not respond
During the switching sequence, the OMD_ operates the change-over switch (Switch I) first to the position
O from position I. If this transition is not completed in three seconds, the Open 1 Failure is activated.
If switching to the position O is completed, but the transition (Switch II) from O to II fails, the Close 2
Failure is activated. These alarms will lock the switching logic and can only be reset by pushing the
AUTO key.
During the back-switching sequence, similiar transitions will be perfomed from II to O and from O to I,
possibly activating Open 2 Failure or Close 1 Failure.
Figure 13.1
Figure 13.2
Unsuccesful switching sequence
Close Switch II
Close the switch II on LN2
(max. operating duration 3 s)
Switch I status
The switch I in position I -status
Switch II status
The switch II in position II -status
Succesful switching sequence
13.5 Missing of both lines
The missing of both lines is indicated by a blinking Power LED. In this case, the OMD_ will be in a power
saving state. If both lines are missing more than one minute, the OMD_ will shut down.
If the Line 1 or the Line 2 comes back supplying the OMD_ in Auto Mode, it will analyze the conditions
of the monitored lines and the status of the change-over switch and it will switch on the line that is OK
giving priority to the Line 1.
92
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Installation and operating instruction, OTM_C_D_
14. Accessories
14. Accessories
14.1 Terminal clamp sets
Figure 14.1
Mounting of the terminal clamp sets, types OZXB_ and OZXA_
93
1SCC303003M0203, rev. D
Installation and operating instruction, OTM_C_D_
14. Accessories
14.2 Bridging bars
Figure 14.2
Mounting of the bridging bars (type OTZC_) to the automatic transfer switches
OTM160_C_D_...800E_C_D_
94
1SCC303003M0203, rev. D
14. Accessories
Figure 14.3
Installation and operating instruction, OTM_C_D_
Mounting of the bridging bars (type OTZC_) to the automatic transfer switches
OTM1000...1600_C_D_ and OTM800...1200U_C_D_
95
1SCC303003M0203, rev. D
Installation and operating instruction, OTM_C_D_
14.3 Auxiliary contact blocks
Figure 14.4
Mounting of the auxiliary contact blocks, type OA_
96
1SCC303003M0203, rev. D
14. Accessories
14. Accessories
Installation and operating instruction, OTM_C_D_
14.4 Terminal shrouds
Figure 14.5
Mounting of the terminal shrouds (type OTS_) to the automatic transfer switches
OTM160_C_D_...800E_C_D_
97
1SCC303003M0203, rev. D
Installation and operating instruction, OTM_C_D_
Figure 14.6
14. Accessories
Mounting of the terminal shrouds (type OTS_) to the automatic transfer switches
OTM1000...1600E_C_D_ and OTM800...1200U_C_D_
98
1SCC303003M0203, rev. D
14. Accessories
Installation and operating instruction, OTM_C_D_
14.5 Handle and spare fuse storage
Figure 14.7
Handle and spare fuses can be stored on the automatic transfer switch by mounting the
accessory OTVS_ .
14.6 Fastener
Figure 14.8
Fastener OMZD1, used when the automatic control unit OMD_ is mounted on the door
99
1SCC303003M0203, rev. D
Installation and operating instruction, OTM_C_D_
14. Accessories
14.7 Cover plate
Figure 14.9
Door drilling and mounting of the cover plate OMZC_ , when the automatic control unit
OMD_ is mounted on the change-over switch or on the DIN-rail
Figure 14.10
Door drilling and mounting of the cover plate OMZC_ , when the automatic control unit
OMD_ is mounted on the door
100
1SCC303003M0203, rev. D
Installation and operating instruction, OTM_C_D_
15. UL standard switches
15. UL standard switches
OTM200U_C_D_
OTM400U_C_D_
OTM600U_C_D_
OTM200U_C_D_
OTM400U_C_D_
OTM600U_C_D_
Current
200 A
400 A
600 A
Height
406 mm/16 in
610 mm/24 in
600 mm/24 in
Width
305 mm/12 in
356 mm/14 in
700 mm/28 in
Depth
203 mm/8 in
254 mm/10 in
400 mm/16 in
A
0
0
B
13 mm/0,5 in
13 mm/0,5 in
E
13 mm/0,5 in
13 mm/0,5 in
0
13 mm/0,5 in
D
70 mm/2,8 in
70 mm/2,8 in
70 mm/2,8 in
OTM200U_C_D_
Cable size
Cable size
AWG
C
MCM
C
4-3
100 mm/4 in
250
200 mm/8 in
2
100 mm/4 in
300
250 mm/10 in
1
100 mm/4 in
1/0
125 mm/5 in
2/0
150 mm/6 in
3/0-4/0
175 mm/7 in
13 mm/0,5 in
OTM400U_C_D_
Cable size
Cable size
AWG
C
MCM
C
2
100 mm/4 in
250
200 mm/8 in
1
100 mm/4 in
300
250 mm/10 in
1/0
125 mm/5 in
350
300 mm/12 in
2/0
150 mm/6 in
3/0-4/0
175 mm/7 in
OTM600...1200U_C_D_
Cable size
Cable size
AWG
C
MCM
C
2
100 mm/4 in
250
200 mm/8 in
1
100 mm/4 in
300
250 mm/10 in
1/0
125 mm/5 in
350
300 mm/12 in
2/0
150 mm/6 in
400
330 mm/13 in
3/0-4/0
175 mm/7 in
500
356 mm/14 in
600
381 mm/15 in
Figure 15.1
UL standard switches, OTM200U_C_D_, OTM400U_C_D_, OTM600U_C_D_,
OTM800U_C_D_ and OTM1200U_C_D_
101
1SCC303003M0203, rev. D
Installation and operating instruction, OTM_C_D_
15. UL standard switches
15.1 Phase barriers
Phase barriers or shrouds (see section 14.4) must be used to maintain a clearance of 1 inch on the
automatic transfer switch types: OTM600U_C_D_, if the conductors are wider than 39 mm /1,54 in
(phase barrier 68838) and on OTM800...1200U_C_D_, if the lugs are wider than 54 mm /2,13 in (phase
barrier 68912).
Phase barriers 68912 must be used on automatic transfer switches types OTM1000-2500_C_D_ if the
voltage is > 415 V.
The types for the package of 6 barriers are: 68838 = OTB800/6C and 68912 = OTB1600/6C .
Figure 15.2
OTM600...1200U_C_D_ and OTM1000...1600E_C_D_, mounting of phase barriers
102
1SCC303003M0203, rev. D
Printed by: Waasa Graphics Oy, Vaasa Finland
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ABB Oy
Low Voltage Products
P.O Box 622
FI-65101 VAASA, Finland
Telephone +358 10 22 11
Telefax +358 10 22 45708
www.abb.com
The technical data and dimensions are valid
at the time of printing. We reserve the right to
subsequent alterations.