Motor fault..

1 Phenomenon: starting controller cannot be started.Methods: 1,grounding detection,normal. 2,control cabinet,soft start fault,starting current is not normal.3,replace the soft wholesalemotor.blogspot.com starter.4,phenomena,and 2.5,measuring and motor resistance,resistance to 0.Lazy day,I turned out to be workers,only measuring grounding resistance,no resistance value between test items,we water pump motor checked for a long time,thought it was a soft starter is broken,the www.facebook.com/guohong.trading terminal box at the original are all connected to the motor power cable to cut off,oh my god,can single phase induction motor my bitter pit,sorching summer I stayed for two days on site in sewage mosquitoes can calculate to see blue.Other: if the motor is good for fire insurance,it must be soft starter is broken.

how to correctly choose servo motor and stepper motor?

ainly depending on the specific application,simply to determine:the nature of the load (such as

horizontal or vertical load,etc.),Torque,moment of inertia,rotational speed,precision,deceleration

requirements,such as upper control requirements (such as requirement for port interface www.dongfeng-motor.com and communication),main control mode is position,torque,or speed Way.Power supply is dc or ac power,or battery power,voltage range.Accordingly to determine motor and drives or the model of the controller.2,select the step motor or servo motor system? Actually,should choose what kind of motor pumps according to the specific application,each have its characteristics.? 3,how to stepper motor driver? According to the current of motor,with greater than or equal to the current drive.If you need or high precision,low vibration with segment type Drive.For large torque motor,high voltage type drive as far as possible,in order to obtain good performance at a high speed.rotor balancing machineAccording to the current of motor,with greater than or equal to the current driver Device.If you need or high precision,low vibration can be blending subdivision

drive.For large torque motor,high voltage type drive as far as possible,in order to obtain good

performance at a high speed.