... etc.2,Error display:With phase A,phaseB,phaseCworking power indicating(any one of the three phases failed, ... overload indicating lamp on),switch off the motor working power supply(ZDS-1 type has current display).3, ... diagram in the instruction book.3,The working power supply of the potector shoud be same with ... the control circuit power supply of the motor.4,Don’e dismount ...