eKretz
Diamond; Mod Squad
- Joined
- Mar 27, 2005
- Location
- Northwest Indiana, USA
So I've finally got my Baldor VFD up and running to power my 5 HP lathe. Hooked it up a couple days ago and fired up the motor. First time fired right up. Second time it hung on acceleration at 2 Hz and spiked to almost 30 amps, like it was trying to accelerate but stuck. Sometimes it will fire right up, sometimes not and will hang there bouncing off 2 Hz at 29-30 amps. If I hit run and stop several times consecutively it will finally pick up and go. No-load current draw is about 6.5 amps. I tried disconnecting the motor and hitting run with no load and the VFD runs right up to 60 Hz every time, so I'm thinking something either with the motor or possibly the wire connections.
So... i guess step 1 would be check the resistance between the motor terminals and also each to the motor case. Then maybe terminal connections. Is there anything I missed?
This is a 25 HP Baldor 15J drive running off of 230VAC single phase. It's running in V/Hz mode and set for constant torque.
So... i guess step 1 would be check the resistance between the motor terminals and also each to the motor case. Then maybe terminal connections. Is there anything I missed?
This is a 25 HP Baldor 15J drive running off of 230VAC single phase. It's running in V/Hz mode and set for constant torque.