... load soft start, soft stop and operation proccess of asynchronous motors of exchange current 50Hz, rated voltage 660V or 1140V. it ... 10V)~+10VAnalog current input0(4)~20mADigital input8 ways of programmable input, of which one way can be the high- ... frequency, output frequency, current, power, motor speed, load rate, input and output torque, etc.Fault status displayOvervoltage, undervoltage, ...