The driving mode of the drag plate of the wire EDM machine has a straight drag method and a differential gear method.
The choice of direct drag motor can be servo motor; For the differential gear method, a stepper motor is selected.
Stepper motor three-phase and five-phase are more commonly used.
The driving current of each phase of the stepper motor must be balanced, in order to ensure that the motor drives the drag plate in the normal phase sequence, the X, Y phase sequence on the control panel indicates the LED, that is, it is a monitoring of the running status of the stepper motor, if a certain state LED does not light up or flash, it means that the phase is not working, in some cases the status LED indicates normal, but the stepper motor shows in-situ jitter, abnormal operation, it means that the stepper motor is out of phase, a simple judgment method, can be measured with a table, whether the voltage of each phase of the motor is normal.