allscott
Member
- Join Date
- Jul 2004
- Posts
- 1,332
I have a DCS 400 drive that is acting goofy. There is an eratic bouncing voltage in the neighborhood of +/- 1.5V on both AIN1 and AIN2, even with nothing hooked up to the inputs. I am trying to control it with an AB 1746 NIO4V analog card, with the card hooked up I get the same voltage fluctuations when outputting 0V on the card. Needless to say this doesn't work very good. When looking at the drive display it confirms what I am measuring with a meter, AIn1 actual is bouncing around up to 15% with nothing hooked up.
Any ideas what might be wrong? Bad power supply, faulty opto isolators on the drive, something else?
Any ideas what might be wrong? Bad power supply, faulty opto isolators on the drive, something else?