triumph406
Diamond
- Joined
- Sep 14, 2008
- Location
- ca
I have a 4020 with the INV-0054 spindle drive that's failing.
On several occasions the spindle has stopped and coasted to a halt. It's happened while I was warming up the spindle at 3000rpm, it's happened a few times during a program. Evidently the drive sends a fault signal to the control, and the axis drives get disabled.
The last time it happened I took some pictures of the faults on the drives
From the Baldor manual for the drive
HW Power Supply
Control Board power supply failure detected.
HW Desaturation
High output current condition detected (greater than 400% of rated output current). On B2
size controls, a desat error can indicate any of the following: low line impedance, brake
transistor failure or internal output transistor overtemperature.
3 SEC Overload
Peak output current exceeded the 3 second rating value.
The VHT motor has .4ohm resistance between legs, and has a resistance 3-400megohms for each leg to ground. The spindle turns very freely so there's no significant load there. Which might mean the HW Desaturation and 3 SEC Overloaderrors might be Red Herrings. I assume those errors may be tied to the HW Power Supply error.
So it appears that the drive is failing. Unfortuantly I don't have time to dive into the drive to try and find the bad components, I'm assuming as the drive is from 1996 it needs new caps, and maybe the IGBT's need to be checked.
So it appears that there's a Glentek inverter in the machines very near future. The advantage to the Glentek is that I can add rigid tapping to the machine, which I can't with the Baldor INV-0054 that's currently in the machine. That will require the correct Eproms and an encoder for the spindle motor.
Does anybody have any insight? I need to be up and running for a job that starts Monday/Tuesday so will getting a Glentek, but in the future I will see if I can fix the Baldor drive. What should I be looking for? I assume caps/resistors etc
On several occasions the spindle has stopped and coasted to a halt. It's happened while I was warming up the spindle at 3000rpm, it's happened a few times during a program. Evidently the drive sends a fault signal to the control, and the axis drives get disabled.
The last time it happened I took some pictures of the faults on the drives
From the Baldor manual for the drive
HW Power Supply
Control Board power supply failure detected.
HW Desaturation
High output current condition detected (greater than 400% of rated output current). On B2
size controls, a desat error can indicate any of the following: low line impedance, brake
transistor failure or internal output transistor overtemperature.
3 SEC Overload
Peak output current exceeded the 3 second rating value.
The VHT motor has .4ohm resistance between legs, and has a resistance 3-400megohms for each leg to ground. The spindle turns very freely so there's no significant load there. Which might mean the HW Desaturation and 3 SEC Overloaderrors might be Red Herrings. I assume those errors may be tied to the HW Power Supply error.
So it appears that the drive is failing. Unfortuantly I don't have time to dive into the drive to try and find the bad components, I'm assuming as the drive is from 1996 it needs new caps, and maybe the IGBT's need to be checked.
So it appears that there's a Glentek inverter in the machines very near future. The advantage to the Glentek is that I can add rigid tapping to the machine, which I can't with the Baldor INV-0054 that's currently in the machine. That will require the correct Eproms and an encoder for the spindle motor.
Does anybody have any insight? I need to be up and running for a job that starts Monday/Tuesday so will getting a Glentek, but in the future I will see if I can fix the Baldor drive. What should I be looking for? I assume caps/resistors etc