When the arm runs to the upper and lower two limit position, respectively press the lower limit switch, cut off the main control circuit, variable amplitude motor parking, to limit the role.
当臂杆运行到上下两个极限位置时，分别压下限位开关，切断主控电路，变幅电机停车，达到限位的作用。
2
The power input connector on the switch has two dedicated alarm circuit connections that can be wired to any warning device, such as a PLC or pilot light .
转换器中的功率输入连接器有两个专门的告警电路接线，可以连接任何报警装置，例如PLC或者标灯。
3
As an alternative, you can add two resistors and use an SPST switch to disable or enable the circuit.