kb1cjp
Aluminum
- Joined
- Nov 14, 2012
- Location
- Connecticut
I posted this under the Monarch forum as they bought Lodge & Shipley. I was able to get an electrical diagram from Monarch, but it does not go into detail on the Reliance SCR Drive Power supply. Problem is spindle motor does not run. I have 208V 3 phase at the input terminals to the SCR power supply. When I turn on the spindle I see 5V gate pulses to half of the SCRs. and no voltage out of the SCRs.
Monarch says parts are obsolete and not available
My assumption is the Motor is DC. I attached a picture of the nameplate, but reading it I can not confirm it is DC.
I have been trying to find specs on the SCRs. while google has surplus units, I really want to see a data sheet. I am not fully convinced the SCRs are the problem, which was my first guess. The Assembly Part number is 69371-10A, and the actual SCR is a GE 410403-23AC 839.
My current thought is if I am only getting gate pulses on one side of the Rectifier I wont get return current thru the return side.
Brian
Monarch says parts are obsolete and not available
My assumption is the Motor is DC. I attached a picture of the nameplate, but reading it I can not confirm it is DC.
I have been trying to find specs on the SCRs. while google has surplus units, I really want to see a data sheet. I am not fully convinced the SCRs are the problem, which was my first guess. The Assembly Part number is 69371-10A, and the actual SCR is a GE 410403-23AC 839.
My current thought is if I am only getting gate pulses on one side of the Rectifier I wont get return current thru the return side.
Brian