ABB OMD200 User guide

—
INSTALLATION AND OPERATING INSTRUCTION
Automatic control units
OMD200 and 300
— Automatic control units 34OOMS200-300 rev. E/ 1SCC390125M0203

AUTOMATIC CONTROL UNITS, OMD200 AND 300

3
AUTOMATIC CONTROL UNITS, OMD200 AND 300 AUTOMATIC CONTROL UNITS, OMD 200-300
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Table of contents
1. Introduction 05
1.1 Use of symbols 05
1.2 Explanations of abbreviations and terms 05
2. Product overview 06
2.1 Typical applications 07−08
3. Description 09
3.1 OMD200 and OMD300 switching sequence 09
3.1.1 Line 1 priority 09
3.1.2 No line priority 10
3.1.3 Manual back switching mode 11
4. Installation 12
4.1 Dimensional drawings 12
4.2 Mounting 13
4.2.1 Door mounting 13−14
4.2.2 DIN-rail mounting 15−16
5. Connecting 17
5.1 Power circuit 17
5.2 Control circuit 18
5.2.1 Control circuit diagram OMD200 with
motorized OTM40...125_CMA_ 18
5.2.2 Control circuit diagram OMD200 with
motorized OTM160...2500_CM_
19
5.2.3 Connectors, OMD200 20
5.2.4 Control circuit diagram OMD300 with
motorized OTM40...125_CMA_ 21
5.2.5 Control circuit diagram OMD300 with
motorized OTM160...2500_CM_
22
5.2.6 Connectors, OMD300 23
5.2.7 OMD200 and OMD300 outputs 24
5.2.8 OMD200 and OMD300 inputs 24

4AUTOMATIC CONTROL UNITS, OMD200 AND 300
6. Operating 25
6.1 Automatic control unit in Manual Mode 25−26
6.2 Automatic control unit in Automatic Mode 27
6.3 Selection of delay time, voltage threshold and
TEST function 27−29
6.4 Operating modes 30
6.4.1 Operating modes in OMD200 and 300 30
6.4.2 Choice of Operating mode in OMD200 and OMD300 31−33
7. Using automatic control units OMD200 and OMD300 34
7.1 Interface 34
7.1.1 Keypad 34
7.1.2 LEDs 35−36
7.2 Configuration 37
7.2.1 Rotary switches 37
7.2.2 DIP switches / parameter set 38−40
7.3 TEST sequence 41
8. Technical data of the automatic control units
OMD200 / OMD300 42
9. Troubleshooting 43
9.1 OMD200, OMD300 43
9.2 Explanations of internal faults OMD200, OMD300 43
9.3 Change-over switch does not respond 44
9.4 Missing of both lines 44
10. Accessories 45
10.1 Fastener 45
10.2 Cover plate 46−47

5
AUTOMATIC CONTROL UNITS, OMD200 AND 300 AUTOMATIC CONTROL UNITS, OMD 200-300
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1 Introduction
This manual describes the installation and the basic operation of the OMD200 and OMD300 automatic
control units. The instructive part is followed by a section on available accessories.
Caution: provides important information or warns about a situation that may have a detri-
mental effect on equipment.
General warning: warns about a situation where something other than electrical
equipment may cause physical injury to a person or damage to equipment.
Hazardous voltage: warns about a situation where a hazardous voltage may cause
physical injury to a person or damage to equipment.
Information: provides important information about the equipment.
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1.2 Explanations of abbreviations and terms
—
1.1 Use of symbols
OMD: The control unit of automatic transfer switching equipment, common type
name for the automatic control unit
OMD200: The automatic control unit, standard version
OMD300: The automatic control unit, standard version with additional power supply
control
DPS: Dual power source
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
TBs: Back switching delay
Gs: Generator stop delay

6AUTOMATIC CONTROL UNITS, OMD200 AND 300
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2 Product overview
The automatic transfer switch concept is applied to any application requiring switching from the pri-
mary power line to secondary power line to ensure the supply of loads.
OMD200:
Analysing the voltage, frequency and the phase balance. Includes the generator START / STOP com-
mand.
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 has to be always connected.
Figure 2.1 Automatic control units, OMD200 and OMD300
I
I
II
II
OMD
OFF
ON ON
20
5
10
15
+
-%
0s 5
10
30
0s
5
10
30
Ts
Tbs=300s
Tbs=Ts
Lim
SETUP
TEST
25
30
Power Auto Alarm
LN1 LN2
AUTO
I
I
II
II
OMD
OFF
ON ON
20
5
10
15
+
-%
0s 5
10
30
0s
5
10
30
Ts
Tbs=300s
Tbs=Ts
Lim
SETUP
TEST
25
30
Power Auto Alarm
LN1 LN2
AUTO
A07266
2
1
5
4
3
1 User interface consists of LEDs, keypad and rotary switches
2 Connectors to connect automatic control unit with application and motorized change-over switch
3 DIP switches for parameter setting
4 Places for fasterner, used when OMD200 or OMD300 is mounted on the door
5 Place for DIN rail

7
AUTOMATIC CONTROL UNITS, OMD200 AND 300 AUTOMATIC CONTROL UNITS, OMD 200-300
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2.1 Typical applications
A. Mains - Generator line
In case of loss of the primary power line, the OMD_ device manages the switching to the emergency
power line equipped with a genset system.
Figure 2.2 Mains - Generator line
B. Mains a – Mains b
In case of loss of the primary power line, the OMD_ device manages the switching to a secondary power
line used as an emergency source.
Figure 2.3 Mains a – Mains b
Automatic control unit type OMD_ is designed for single and three-phase distribution systems in
diverse applications. OMD_ is supplied from Line 1 and Line 2 and can be used without external power
supply.
A07253
III
A07258
III
G

8AUTOMATIC CONTROL UNITS, OMD200 AND 300
Figure 2.4 Automatic control units OMD_ have the capability to monitor two three-phase power
lines, both able to also work with single phase.
KA00462
1
4
3
2LN1
L1
L2
L3
X11
L1 L2 L3
N
L
2
1X13
LINE 1
1
4
3
2LN2
L1
L2
L3
X12
L1 L2 L3
N
L
2
1X14
LINE 2
1
4
3
2
LN1
L1
X11
N
L
2
1X13
1
4
3
2
LN2
L1
X12
N
L
2
1X14
N
N
LINE 1
L1 N
LINE 2
L1 N
N
NN
N
KA00437
LN1
L1
L2
L3
L1 L2 L3
N
L
LINE 1
LN2
L1
L2
L3
L1 L2 L3
N
L
LINE 2
1
4
3
2X12
2
1X14
1
4
3
2X11
2
1X13
With DIP switches, it can be chosen whether or not the N-line is connected. If OMD_ is used without the
N-line, the external transformer must be used.
Figure 2.5 If OMD_ is used without the N-line, the external transformer must be used.

9
AUTOMATIC CONTROL UNITS, OMD200 AND 300 AUTOMATIC CONTROL UNITS, OMD 200-300
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3 Description
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3.1 OMD200 and OMD300 switching sequence
3.1.1 Line 1 priority
The switching sequence can be summarized in following steps:
An anomaly occurs on the Line 1
Switching delay
Generator start
Change-over switch (Switch I) to the position O
Change-over switch (Switch II) to the position II
And 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
Change-over switch (Switch I) to the position I
Generator stop delay
Generator stop
Ts: Switching delay, Tbs: Back switching delay, Gs: Generator stop delay
Figure 3.1 Automatic Switching Sequence, Line 1 priority
LINE 2
LINE 1
Switch I status
Switch I status
Gen. START
A07243
TbsTs Gs

10 AUTOMATIC CONTROL UNITS, OMD200 AND 300
Ts: Switching delay, Tbs: Back switching delay, Gs: Generator stop delay
Figure 3.2 Automatic Switching Sequence, no line priority
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3.1.2 No line priority
The switching sequence can be summarized in following steps:
An anomaly occurs on the Line 1
Switching delay
Generator start
Change-over switch (Switch I) to the position O
Change-over switch (Switch II) to the position II
And the back switching sequence can be summarized in the following steps:
The Line 1 will start the normal functioning
Change-over switch stays in position II
An anomaly occurs on the Line 2
Back switching delay
Change-over switch (Switch II) to the position O
Change-over switch (Switch I) to the position I
Generator stop delay
Generator stop
LINE 1
LINE 2
Switch I status
Switch II status
Gen. start
Ts Tbs Gs
A07261