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AUTOM ATIC CONTROL U N IT, OM D8 0 0
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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.
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. Monitor-
ing, configuration and control are possible via 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.
Analysing the voltage, frequency and the phase balance. Includes the generator START / STOP
command. Communication via Modbus.
DI/DO.
Figure 2.1
Automatic control unit OMD800
1
User interface consists of display, LEDs and keypad
2
Connectors to connect automatic control unit with application and motorized change-over switch
3
Places for fasteners, used when OMD800 is mounted on the door
4
Place for DIN rail
I
II
OMD
OFF
ON
ON
2
1
4
3
