Connecting Outputs - Mitsubishi Electric MelcoREMOTE Installation And Operation Manual

To connect a 4-20mA sensor that requires "loop" power:
- Isolate the MelcoREMOTE supply.
- Connect the positive (+) terminal on the sensor to the RS-485 Port 1+ or RS-485 Port 2+ terminal on the
MelcoREMOTE.
- Connect the negative (-) terminal on the sensor to the required positive (+) configurable input terminal on
MelcoREMOTE (e.g. IN01+).
The maximum cable length for 4-20mA inputs is 1000m. This represents a cable loss of < 5V at 25mA.

8.2. Connecting Outputs

For connecting contactors (nominal 100mA coil) to digital outputs, the maximum cable length is 50 metres (16/0.2, tri-
rated cable). This represents a cable loss of <1V @ 80mA (typical contactor current).
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