1.There are many reasons why the motor does not work when the workbench is tilted. We analyze the following one by one:
(1) The contact of the contactor is not in good contact, phase loss, or coil failure. In this way, the contactor contacts can be processed and the contactor can be replaced if necessary.
(2) The thermal relay fails or malfunctions. Just replace the thermal relay or reset it.
(3) If the button fails, repair, or replace the button.
(4) The motor brake is not opened or the motor load terminal is loose and the contact is not good: check the motor brake device and tighten the load terminal.
2.After pressing the button, if there is no lifting action or unidirectional action, it may be because the limit mechanism is stuck or the contact is faulty, so just replace the limit. It may also be that the button contacts are not in good contact or the button return spring is damaged. Just repair it. If it can’t be repaired, just replace the button. There may also be a misoperation of the thermal relay with a small setting current or a thermal relay failure. You can adjust the setting current or replace the thermal relay. If the motor does not operate, humming sound, the contactor lacks phase, and the load terminal is not in good contact. If this happens, check the contactor and replace the contactor if necessary, and tighten the load terminal.
2.The rotary table of the positioner does not move.
(1) The speed regulating potentiometer of the remote control switch fails, and the speed regulating potentiometer can be replaced.
(2) Whether the workbench forward and reverse relays CR1 and CR2 are active, you can check whether the wiring is loose and whether the relay is faulty, tighten the wire, or replace the relay.
(3) The inverter panel is not in good contact and the screws are loose. You can check the inverter and tighten the screws to make the contact well.
(4) Check whether the worktable rotary brake contactor KM5 is active and the brake is opened. You can check whether the brake wiring and contactor are faulty, tighten the screws, solve the contactor failure, and replace the contactor if necessary.
(5) Check whether the near control or remote control switch is in place, whether the button is faulty, you can replace the switch or button.
(6) The up limit switch connected to the inverter is faulty, the limit switch can be replaced.
(7) Check whether the wiring of the circuit breaker on the front side of the inverter's main circuit is firm and whether there is a phase loss. If the wiring is loose, tighten the wiring terminals to make good contact. If the circuit breaker fails, replace the circuit breaker.
(8) If the brake is not opened, check the brake device, first check whether there is any fault or damage, and replace it in time.
There are many reasons for the failure of the welding rotary positioner. If you encounter any problems during operation, you must investigate and find the problems one by one, and repair them in time, and do a good job in the maintenance of the machine.