5.2 Connect the unit
1. Connect the relay outputs.
Terminal Description
3 Output relay 1: 5 A, 250 VAC
4
1 Output relay 2: 5 A, 250 VAC
2
9 Output relay 3: 5 A, 250 VAC
10
7 Output relay 4: 5 A, 250 VAC
8
2. Connect the Modbus communication.
Terminal Description
11 Modbus/ RS-485 (B) to MAS terminal 38
12 Modbus/ RS-485 (A) to MAS terminal 37
3. Connect the power supply.
Terminal Description
5 Power supply: 24 VAC or 24 VDC
6 Ground
5.3 Replace CAS with MRM and MAS
1. Install the MRM 01 and MAS base unit according to Install the unit on a DIN rail (page
7).
2. Connect the CAS inputs and outputs to the MAS base unit and MRM 01.
5 Electrical Installation
MRM 01 Installation, Operation, and Maintenance Manual 9