mcr OMEGA pro
Power and Control Panel
„MERCOR” S.A. –
The company reserves the right to modify and amend this document without notice.
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3.6.2.
OPTIONAL MONITORING AND CONTROL MODULES
mcr MMS 63
The mcr MMS 63 module has 6 digital inputs and 3 relay outputs. Each of them can feature one of the
available extension modules by linking them together via dedicated communication tapes connected to
the slots MASTER / SLAVE
The available extension card types include:
mcr MZK2001 enabling communication with external systems (BMS,
frequency converters, controllers (e.g. mcr ICR)) via RS485 Modbus
RTU or control of the output transistor of any polarity
1×relay output
mcr MMS 2082 equipped with 8 digital inputs and 2 relay outputs
The mcr MMS 63 modules are powered by 24 VDC connected to the 24
V + and - terminals. Correct power supply of the module is indicated by
the PWR LED on.
The module works according to the specified program. Individual
elements (modules) of the system have the ability to communicate with
other modules connected in one set. Communication is carried out
through the serial port of microprocessors that control the operation of
individual modules. Data exchange is initiated by a module with MASTER
authorization. SLAVE modules respond to its inquiry. SLAVE modules have unique addresses set with
a microswitch. The data exchange protocol between MASTER and SLAVEs is similar to the MODBUS
protocol. The modules are interconnected with the HBUS rail at the bottom of the housing.
Digital inputs (IN)
are optically isolated and enable signaling of the following states: interruption, short
circuit, line control. The module input signals are powered from a special output of the same module
(COM). The status of each input is signaled on the mcr MMS 63 module by LED:
- RED - solid line, closed contact
- GREEN -
input contact open (circuit closed with a 10kΩ resistor)
- NO LIGHT
– line interrupted
The line control terminator is a 10kΩ resistor. In order to eliminate interference caused by contact vibration,
the input signals are subject to digital filtration.
Relay outputs (OUT
) have a status signaling via yellow LEDs. Active output is presented by lighting LED.
The output operation logic can be customized by wiring the output terminals because each output has
three changeover contact terminals. The load capacity of a single output is a maximum 6A at a maximum
voltage of 250V AC. The output signals are also separated from the microprocessor potential.
