We had an arch fail to rotate and as a result hit the front bumper of a car then stop right in front of the car. Not a big deal. But then after a minute the trolly tries to go home and drags the arch up and over the top of the car. In the log it shows arch impact deactivated right before that happened. Then once it was home it shows the impact switch reactivated. Now we are trying to reset the machine and it stops in the same spot every time. I can get the arch to rotate in maintenance mode, it takes angle commands and the bridge and trolly move around with commands as well. I tried swapping the card for the encoder as well as a new Lon/ENI cable. the LED on the impact switch does turn off when you push on the arch. Both of our bays are down and we had a tech out on Friday who spent 6 hours there and we still have two dead bays.
Arch Failed to rotate then impact switch disabled and dragged over a car RS485 code
- Thread starter Jaltavela
- Start date
Waxman
Super Moderator
sounds like a prox switch issue to me. You have to look at the sequence of events and see what is supposed to be lit for Prox switches when the machine stops. Sounds like you have one of the prox switches losing its signal at some point along the path that the wash is supposed to take normally. I have had issues like this and it's always some thing in that circuit like the switch itself, the cable, the cable end, or the associated relay to that Prox switch
Waxman
Super Moderator
I have no idea. I'm not familiar with the G5 at all. I'm sure there are plenty of people on this forum who are or you could check the manual.
It does not appear that the G5 has prox switches. I was there 12 hours yesterday. We replaced the arch encoder, the arch card both in the control box and the bridge, the Lon wire, we swapped the arch gear box with a known good gear box, we tested the arch motor, we replaced the arch VFD. And it is still stopping in the same place on the first loop of the BFL. It does it when the arch moves from the right limit to the left only about two feet from the right limit. even if i move the arch in maintenance mode from right to left it will fault the arch and shut off the vfd and then the arch will not rotate unless i clear forces and nodes.
Well its always the last thing you check that solves the problem I suppose. We wanted to change the power cable to the arch motor on New Years Day because it looked rough. No one was open and we didn't have any extra wire. So we wrapped the bad spots and hoped for the best. The Wet tech called Thursday and asked if we wanted him to go bad. We said yes but we were fairly sure it could be the power cable. We work day jobs so unfortunately we couldn't do it yesterday. But that was it!
