Relay Output - Calpeda NCE HQ2 Instrucciones De Uso

18.7 Relay output

Relay output for passive switching of external fault indication.
When disconnected, the pump is fault;
When it is closed, the pump is normal.
When the relay is disconnected,
the pump is fault;
18.8 External communication is RS485 and the protocol is Modbus RTU.
The communication line of the water pump needs to correspond to the A and B
signals of the external controller.
Relay output
When it is closed, the pump is normal.
164
GB