Spindle and coolant pump don’t work
The spindle motor and the coolant pump suddenly stop working during machining.
Try to manual start the spindle forward and turn on the coolant but no response, keep checking the spindle backward, changing tool, X and Z movements are fine.
Follow below steps:
1- Check the I/O board of the CNC controller has problem or not?
2- Any open circuits of the spindle and coolant pump?
3- Any broken relay or contactor of the spindle or coolant pump?