I'm working on a T-IV SCR Drive DSD-312. I have a write-up that tells me which inputs and outputs permit the drive to run. However, my problem is that it is throwing a 903 fault. This is a line synchronization problem. I have been in touch with Magnetek, but this is a proprietary drive and they can only offer general guidelines. Has anybody had a similar problem? When I try to run on inspection, The brake lifts and the car drifts up. I am going to add weight to the car on monday as we are getting pretty high in the shaft, and I cant afford to get on the directional or final. Anybody got any ideas? Does anybody have a known good DSD-312 Magnetek number 46S02959-7051. Thanks for your help.
