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Gantry does not move in reverse

cmcclu

New member
What would prevent a 2.0 from moving in reverse during manual or wash mode? A wheel test works fine and I have tested end of track and boom proxs and best of my knowledge all input cards are in working order. Also no alarms are tripped, the machine will just apply presoak until it trips out.
 
I don't know the specifics of what sequence the unit "thinks" in the ladder program. but between the home, end of track, and two counting proxes I can't see it being much anything else. Have you checked the home prox? I assume you have looked for a good strong input light on the PLC card.

There are two alarm records - user and permanent. Sometime an error code will pop up on permanent and not user. Just gonna make sure you knew that.
 
I've called in for help. I'm sure it'll end up being something simply overlooked or such but being at wits end I'm ready to get it fixed. I'll let you know what I find out. Thanks again!
 
We'll it appears that the problem that prevented the gantry to move was the result of crossed wheel counting prox's and cables. While attempting to locate a 24 vdc short they were accidentally crossed. The tricky part was that no alarms were triggered and the input cards appeared to be in working order. I thought I had a proper wheel count but the numbers were somehow lower that what should of been which was the clue. After a final wheel count with the corrected wiring all was finally good. All in all it was a simple fix that took 5 minutes but 2 weeks searching for the problem.
 
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