China's mines are hoist AC Induction Motor Drive, and its electrical control system uses a rotor series, cutting speed resistance , by the relay - contactor control devices constitute a logical.
我国矿井提升绞车大多是采用交流异步电机拖动，其电气控制系统采用转子串、切电阻调速，由继电器-接触器构成逻辑控制装置。
Implements by the relay to the electric motor, the inlet valve, draw-off valve's control.
由继电器实施对电动机、进水阀、排水阀的控制。
It can control the stepper motor to change the pressure of the relay, and the A/D circuit samples the signal of the pressure sensor and then acquires the lock or alarm value after processing.
该校验仪通过步进电机对密度继电器压力进行调节，并通过模数转换电路采集压力传感器的输出，实现对密度继电器报警及闭锁压力的测量。
应用推荐