(1) Monitor the current value of the pulse output of the controller and whether the pulse output light flashes, confirm that the command pulse has been executed and the pulse has been output normally;
(2) Check whether the control cable, power cable and encoder cable from the controller to the drive are misaligned, damaged or poorly contacted;
(3) Check whether the brake of the servo motor with brake has been opened;
(4) Monitor the panel of the servo drive to confirm whether the pulse command is entered;
(5) The Run operation instruction is normal;
(6) The control mode must select the position control mode;
(7) Whether the input pulse type set by the servo drive and the setting of the command pulse are consistent;
(8) Make sure that the forward side drive is disabled, the reverse side drive prohibition signal and the deviation counter reset signal are not entered, the load is disengaged and the no-load operation is normal, and check the mechanical system.