Thread: 217 thermal trip alarm

We have a Mazak VTC20B with an M32B control. I am getting a 217 thermal trip alarm. Can anyone tell me what that is pointing to?

Check your alarm lists, but it sounds like your invertor unit is getting hot. Try blowing the dust out, see if this helps.

I think it is the coolant pump heating up. The machine runs fine until you turn the pump on for a minute or so then it kicks out.

Thanks,

Originally Posted by dmitch9072

I think it is the coolant pump heating up.

Was the coolant pump the problem? I just got this 217 Thermal Trip alarm...troubleshooting now.

UPDATE: It IS the coolant pump. I looked up the alarm code; it showed QF11 was tripping; cross referenced to the electrical manual and found the coolant pump.

Check your chip conveyor is it jammed?

Check your coolant pump the inlet screen on the underside is packed with chips, this causes mine to trip.

Clean out the chips and other garbage that collects inside the fan shroud, do the HYD pump while your at it.

thermal trip is mazak speak for a tripped motor overload
it means a motor is jamed or burned up
the "thermal" part is refering to a thermal overload seeing a higher than normal current draw which is sensed by the temp in overload portion of the motor starter