Free electrical signal port N1/N2
Cheap electrical signal port M1/M2
Used for energy management and to identify cheap or free electricity. When N1 is connected to N2, the electricity is
determined to be free electricity. When M1 is connected to M2, the electricity is determined to be cheap electricity. When
receiving cheap or free electrical signal, the hydraulic module will automatically start. (For detailed settings, refer to the
Service Manual)