ABB OMD100 User manual

—
INSTALLATION AND OPERATING INSTRUCTION
Automatic control unit
OMD100
— Automatic control unit 34OMD100 rev. C / 1SCC390124M0202

2AUTOMATIC CONTROL UNIT, OMD100
—
Table of contents
1. Introduction 4
1.1 Use of symbols 4
1.2 Explanations of abbreviations and terms 4
2. Product overview 5
2.1 Typical applications 6
3. Description 7
3.1 OMD100 switching sequence 7
3.1.1 Line 1 priority 7
3.1.2 No line priority 8
3.1.3 Manual back switching 9
4. Installation 10
4.1 Dimensional drawings 10
4.2 Mounting 11
4.2.1 Automatic control unit OMD100, door mounting 11
4.2.2 Automatic control unit OMD100, DIN-rail mounting 12
5. Connecting 13
5.1 Power circuit 13
5.2 Control circuit 14
5.2.1 Control circuit diagram OMD100 with motorized
OTM40...125_CMA_ 14
5.2.2 Control circuit diagram OMD100 with motorized
OTM160...2500_CM_ 15
5.2.3 Connectors, OMD100 16
5.2.4 OMD100 outputs 17
5.2.5 OMD100 inputs 17
6. Operating 18
6.1 Automatic control unit in Manual Mode 18 – 20
6.2 Automatic control unit in Automatic Mode 20
6.3 Selection of delay time, voltage threshold and
TEST function 21 – 22
6.4 Operating modes 23
6.4.1 Operating modes in OMD100 23
6.4.2 Choice of Operating mode in OMD100 24 – 26

3
AUTOMATIC CONTROL UNIT, OMD100 AUTOMATIC CONTROL UNIT, OMD100
7. Using automatic control unit OMD100 27
7.1 Interface 27
7.1.1 Keypad 27 – 28
7.1.2 LEDs 28 – 29
7.2 Configuration 30
7.2.1 Rotary switches 30
7.2.2 DIP switches / parameter setting 31 – 32
7.3 TEST sequence 33
8. Technical data of the automatic control unit OMD100 34
9. Troubleshooting 35
9.1 OMD100 35
9.2 Explanations of internal faults, OMD100 36
9.3 Change-over switch does not respond 36 – 37
10. Accessories 38
10.1 Fastener 38

4AUTOMATIC CONTROL UNIT, OMD100
—
1. Introduction
This manual describes the installation and the basic operation of the OMD100 automatic control
unit. The instructive part is followed by a section on available accessories.
—
1.1 Use of symbols
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
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
Caution: provides important information or warns about a situation that may have a
detrimental 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.
—
1.2 Explanations of abbreviations and terms

5
AUTOMATIC CONTROL UNIT, OMD100 AUTOMATIC CONTROL UNIT, OMD100
—
2. Product overview
The automatic transfer switch concept is applied to any application requiring switching from the
primary power line to secondary power line to ensure the supply of loads.
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
can measure voltage, frequency and the phase balance of the primary and secondary power line.
OMD100 is able to command a single motorized change-over switch. The neutral has to be always
connected.
Figure 2.1 Automatic control unit OMD100
1User interface consists of LEDs, keypad and rotary switches
2Connectors to connect automatic control unit with application and motorized change-over
switch
3DIP switches for parameter setting
4Places for fasteners, used when OMD100 is mounted on the door
5Place for DIN rail
A07254
II
II II
OMD
OFF
ON ON
20
5
10
15
+
-%
0s 510
30
0s
5
10
30
Ts Tbs=300s
Tbs=Ts
Lim
SETUP
TEST
LN 1 LN 2
Power Auto Alarm
5
3
2
1
4

6AUTOMATIC CONTROL UNIT, OMD100
Figure 2.2 Network line a - Network line b
Automatic control unit type OMD100 is designed for single and three-phase distribution systems in
diverse applications. OMD100 is supplied from Line 1 and Line 2 and can be used without external
power supply.
Figure 2.3 OMD100 has two sensors to monitor two three-phase power lines, both able to work
with single phase, too. Neutral has to be always connected.
A07253
III
LINE 1
L1 L2 NL3
1
4
3
2
LN1
L1
L2
N
L3
X11
KA00435
LINE 2
L1 L2 NL3
1
4
3
2
LN2
L1
L2
N
L3
X12
LINE 1
NL1
1
4
3
2
L1
N
X11
LINE 2
NL1
1
4
3
2
L1
N
X12
LN1
LN2
—
2.1 Typical applications
Network line a – Network line b
In case of loss of the primary power line, the OMD100 device manages the switching to a secondary
power line used as an emergency source.

7
AUTOMATIC CONTROL UNIT, OMD100 AUTOMATIC CONTROL UNIT, OMD100
—
3. Description
—
3.1 OMD100 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
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
Figure 3.1 Automatic Switching Sequence, Line 1 priority
Ts: Switching delay, Tbs:Back switching delay
LINE 1
LINE 2
Switch I status
A07242
Switch II status
Ts Tbs

8AUTOMATIC CONTROL UNIT, OMD100
Figure 3.2 Automatic Switching Sequence, no line priority
Ts: Switching delay, Tbs:Back switching delay
3.1.2 No line priority
The switching sequence can be summarized in following steps:
An anomaly occurs on the Line 1
Switching delay
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
LINE 1
LINE 2
Switch I status
A07251
Switch II status
Ts Tbs

9
AUTOMATIC CONTROL UNIT, OMD100 AUTOMATIC CONTROL UNIT, OMD100
Figure 3.3 Automatic Switching Sequence, manual back switching
Ts: Switching delay, Tbs:Back switching delay
3.1.3 Manual back switching
The switching sequence can be summarized in following steps:
An anomaly occurs on the Line 1
Switching delay
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
The Line 2 will start the normal functioning
Switching delay
Change-over switch (Switch II) to the position II
LINE 1
LINE 2
Switch I status
A07252
Switch II status
Ts Tbs Ts

10 AUTOMATIC CONTROL UNIT, OMD100
—
4. Installation
—
4.1 Dimensional drawings
Figure 4.1 OMD100, dimensions of the device
170
OMD
96
102
96
90
90
A07255

11
AUTOMATIC CONTROL UNIT, OMD100 AUTOMATIC CONTROL UNIT, OMD100
—
4.2 Mounting
4.2.1 Automatic control unit OMD100, door mounting
The automatic control unit OMD100 can be mounted on the door with the fastener OMZD1,
see Accessories, Section 10. Door drilling according to Figure 4.2.
Figure 4.2 Automatic control unit OMD100, door mounting, door drilling
160
KA00446
91
91
2
OMZD1
×2
1
2a 2b

12 AUTOMATIC CONTROL UNIT, OMD100
4.2.2 Automatic control unit OMD100, DIN-rail mounting
The automatic control unit OMD100 can be mounted on the 35 mm DIN-rail and the door drilling, if
needed, according to Figure 4.3.
Figure 4.3 Automatic control unit OMD100, DIN-rail mounting
KA00457
34
1
35mm
EN 50022
3
2
97
97
KA00458
34
Remove
KA00456
34
12
3

13
AUTOMATIC CONTROL UNIT, OMD100 AUTOMATIC CONTROL UNIT, OMD100
—
5. Connecting
—
5.1 Power circuit
Operating voltage:
Main voltage: 380 Vac (±20 %)
Phase voltage: 220 Vac (±20 %)
Frequency: 50 Hz (±10 %)
Neutral must always be connected.
Phase setting with DIP switch: Single phase or Three-phase (default).

14 AUTOMATIC CONTROL UNIT, OMD100
—
5.2 Control circuit
Figure 5.1 Control circuit diagram OMD100 with motorized OTM40…125_CMA_
Equipment earth must always be connected.
5.2.1 Control circuit diagram OMD100 with motorized
OTM40...125_CMA_
A07281
Signaling OK/Equipment Alarm
Equipment earth
Supply
Equipment earth from DIN-rail
OMD100
Motorized
OTM40-125F_CMA
L1 L2 L3 N L1 L2 L3 N
COM
D01
D02
COM
COM
D03
DI3
DI1
DI2
DI
L1
L2
L3
N
L1
L2
L3
N
D06
COM
D06
OK
COM
Alarm
X5 X4
X1 X2
LN1 LN2
Measurement
Measurement

15
AUTOMATIC CONTROL UNIT, OMD100 AUTOMATIC CONTROL UNIT, OMD100
Figure 5.2 Control circuit diagram OMD100 with motorized OTM160…2500_CM_
Equipment earth must always be connected.
5.2.2 Control circuit diagram OMD100 with motorized
OTM160...2500_CM_
A07256
OMD100
Motorized
OTM160-2500_CM
OA1G10
Switch I auxiliary contact Switch II auxiliary contact
Signaling OK/Equipment Alarm
Equipment earth
Supply
Equipment earth from DIN-rail
L1 L2 L3 N L1 L2 L3 N
COM
D01
D02
COM
COM
D03
DI3
DI1
DI2
DI
D06
COM
D06
X2
X1
J1
OA1G10
Measurement Measurement
L1
L2
L3
N
L1
L2
L3
N
LN1 LN2
OK
COM
Alarm

16 AUTOMATIC CONTROL UNIT, OMD100
5.2.3 Connectors, OMD100
Table 5.1 Connectors OMD 100
Figure 5.3 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_ Common
Output to close switch I NO
Output to close switch II NO
Voltage supply from motor operator OME_ Common
X22:1
X22:2
X22:3
X22:4
Voltage supply from motor operator OME_ Common
Output to open switch I and switch II NO
Reserved
Reserved
X24:1
X24:2
X24:3
Output to signal OK (no alarm)
Common
Output to signal Alarm
X31:1
X31:2
X31:3
X31:4
Manual / Alarm input from handle
Status of switch I auxiliary contact
Status of switch II auxiliary contact
Voltage supply from the automatic control unit OMD100
X61 Equipment earth
KA00287
2 1 2 1 2 1
1 2 3 4
1 2 3 4 1 2 3 4
1 2 3 4 1 2 3 4
1 2 3
X26 X27 X28
X31 X21 X22
X11
X24
X12
X61

17
AUTOMATIC CONTROL UNIT, OMD100 AUTOMATIC CONTROL UNIT, OMD100
5.2.4 OMD100 outputs
5.2.4.1 Opening/closing command to change-over switches, X21 (DO1-DO3)
These outputs command the change-over switch to open and close Switch I or Switch II.
To guarantee the highest-level safety OMD100 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 3
seconds of the sending of the command, the device considers it as a failed command and operates
as follows:
An alarm is generated: DO6 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 on the secondary line (LN2-Switch II) during the back
switching sequence.
5.2.4.2 Alarm signaling, X24 (DO6)
When the relay contact Alarm (X24:3) is open and contact OK (X24:1) is closed, the automatic
transfer logic is enabled. If the relay contact Alarm (X24:3) is closed and the contact OK (X24:1) is
open the automatic transfer logic is disabled and an alarm is active.
5.2.5 OMD100 inputs
5.2.5.1 Switch status input, X31:2 (DI1), X31:3 (DI2)
These two inputs are connected to change-over switch auxiliary contacts. Input X31:2 (DI1) is
connected to LN1-Switch I and input X31:3 (DI2) is connected to LN2-Switch II (Switch I / II open
= input inactive, Switch I / II closed = input active). Auxiliary contacts are in-built in motorized
OTM40…125_CMA_. If OMD100 is used with motorized OTM160…2500_CM_, use always type
OA1G10 auxiliary contacts with DI1 and DI2. See the wiring diagrams on Figure 5.1 and Figure 5.2.
5.2.5.2 Force manual, X31:1 (DI3)
When the handle is attached this input is closed and OMD100 is forced to Manual Mode. To set the
OMD100 back to the Automatic Mode the handle must be removed and the AUTO key pushed (Auto
LED is ON).

18 AUTOMATIC CONTROL UNIT, OMD100
—
6. Operating
Never open any covers on the product. There may be dangerous external control voltages
inside the automatic transfer switch even if the voltage is turned off.
Never handle control cables when the voltage of the automatic transfer switch or external
control circuits are connected.
Exercise sufficient caution when handling the unit.
—
6.1 Automatic control unit in Manual Mode
Selecting the automatic control unit OMD100 to the Manual Mode:
a. Make sure that the power LED is ON, see the Figure 6.1/ .
b. If the Auto LED is OFF / , the automatic control unit is in Manual Mode.
c. If the Auto LED is ON, push the Auto key once / . The Auto LED switches to OFF and the
automatic control unit OMD100 is in Manual Mode / .
Figure 6.1 Selecting the automatic control unit OMD100 to Manual Mode
!
OR
!
KA00199
Manual mode
Manual mode
1
4
2
2
3

19
AUTOMATIC CONTROL UNIT, OMD100 AUTOMATIC CONTROL UNIT, OMD100
To select the switch to operate by the automatic control unit OMD100 in Manual Mode:
a. Push the appropriate I, O or II key.
b. When pushing the I-key (see the Figure 6.2/ , the I-switch will be in the
ON position (the status and the line indication, see the Figure 6.2/ and the II-switch 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.
c. When pushing the O-key, the I-switch will be in the OFF position. The II-switch remains in the
OFF position.
d. When pushing the II-key, the II-switch will be in the ON position and the I-switch will be in the
OFF position.
e. 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 6.2 Selecting the switch to operate, the switch status and the chosen line indication with
LEDs in OMD100
If a new command is given before the switch has reached the position of the previous
command, the fuse (F1) of the motor operator may operate.
II
II II
OFF
ON ON
20
5
10
15
+
-%
0s510
30
0s
5
10
30
Ts
Tbs=300s
Tbs=Ts
Lim
SETUP
TEST
LN1 LN2
Power Auto Alarm
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
LN 1 LN 2
Power Auto Alarm
I
ON
A07257
2
1

20 AUTOMATIC CONTROL UNIT, OMD100
Figure 6.4 Selecting the automatic control unit OMD100 to Automatic Mode
See the OMD100 Automatic Mode operation in Section 7.
Figure 6.3 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 motorized change-over
switch OTM_C is driven to the position O.
—
6.2 Automatic control unit in Automatic Mode
Selecting the automatic control unit OMD100 to the Automatic Mode:
a. Make sure that power LED is ON. If Auto LED is ON/ , the automatic control unit is in Automatic Mode.
b. If Auto LED is OFF/ , check that the Lim rotary switch is not in the TEST or SETUP position/ .
c. Push the Auto key once/ . The Auto LED switches ON and the automatic control unit OMD_ is in Automatic
Mode/
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
LN1 LN 2
Power Auto Alarm
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
LN1 LN 2
Power Auto Alarm
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
LN1 LN 2
Power Auto Alarm
0
III
I - position
0 - position
II - position
A07259
I - command II - command 0 - command
I
ON
II
ON
O
OFF
KA00200
120
5
10
15
+
-%
0s 510
30
0s
5
10
30
Ts Tbs=300s
Tbs=Ts
Lim
SETUP
TEST
!
2
20
5
10
15
+
-%
0s 510
30
0s
5
10
30
Ts Tbs=300s
Tbs=Ts
Lim
SETUP
TEST
Automatic
mode
OR
4
3
I
II II
OFF
ON ON
I
1
Automatic
mode