Relay Outputs; On/Off; Fault; Thermo - Mitsubishi Electric Procon IO-INTERFACE Installation Manual

6.4. Relay Outputs

There are 4 relay outputs each of which has an associated LED

6.4.1. On/Off

The relay and the LED both energise when the unit is ON and de-energise when it is off. The LED will flash when the
unit is ON but in standby mode.

6.4.2. Fault

The Relay and LED both energise when the unit is in a fault condition or the external fault input is active.

6.4.3. Thermo

The relay and LED both energise when the unit is:
- More than 1 degrees below the local setpoint in Heat or Auto modes
- More than 1 degrees above the local setpoint in Cool or Auto modes

6.5. Mode Monitor

The relay and LED energise in the selected mode (Heat or Cool). – See Appendix B for mode selection.
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