I know this is off the wall. I've been repairing overhead doors for 20+ years and have always been able to isolate and troubleshoot electrical/wiring problems. Until this week. I got saddled with a self-storage account that has very old access control technology. I can't find a manufacturer or installer, and the site manager is no help.
The roll-up doors and barrier arms are connected/synchronized through a separate "control panel". This panel is where my problem is. I have already isolated the barrier and the door and tested all functions of each independantly without issue. It's whan evverything is connected together that I am having timing problems or faults.
The concept for the system is pretty simple: keypad to open the roll-up door (goes through computer to grant access), door open limit triggers barrier to open, 2 separate timers-to-close (one for barrier, one for door) with two ground loops wired in-series as safeties. Thats the entry door. The exit door is slightly different....it has free-exit loop to open, everything else is the same.
I need some help identifying which relays control which functions in this panel. On the exit door, I managed to stumble across a missing limit switch, and...VOILA!...the barrier arm now works, the timing is correct, and no problems.
I tried to upload 3 photos of the panel in question. It didn't work. I will be glad to e-mail the photos to anyone willing to try to help. I DO HAVE a clear sketch of the wiring terminal strip labels (which are obscured by the spaghetti explosion of wires). I don't have a wiring diagram.....I think I'm gonna have to make one.
Anyone who has more to offer than, "Quit while you're ahead!" is much appreciated. I don't like giving up, but I know I'm in over my head here. If the switches are all good, then it has to be a relay problem? How do I isolate it? Should I just replace all 3 relays and hope for a miracle?
The entry door motor gear reducer blew a seal and the oil leaked out. I replaced the door motor with a current UL-325-2010 compliant (Liftmaster GH1043-L4) one with a logic board control, and now I have a problem. ...................................................
Somehow I am ending up with a "maintained" close command, which after 2 minutes the door operator recognizes this as a "fault" and won't work unless i pull the close wire off the terminal. And I can't live at this place.
Thanks for reading!
The roll-up doors and barrier arms are connected/synchronized through a separate "control panel". This panel is where my problem is. I have already isolated the barrier and the door and tested all functions of each independantly without issue. It's whan evverything is connected together that I am having timing problems or faults.
The concept for the system is pretty simple: keypad to open the roll-up door (goes through computer to grant access), door open limit triggers barrier to open, 2 separate timers-to-close (one for barrier, one for door) with two ground loops wired in-series as safeties. Thats the entry door. The exit door is slightly different....it has free-exit loop to open, everything else is the same.
I need some help identifying which relays control which functions in this panel. On the exit door, I managed to stumble across a missing limit switch, and...VOILA!...the barrier arm now works, the timing is correct, and no problems.
I tried to upload 3 photos of the panel in question. It didn't work. I will be glad to e-mail the photos to anyone willing to try to help. I DO HAVE a clear sketch of the wiring terminal strip labels (which are obscured by the spaghetti explosion of wires). I don't have a wiring diagram.....I think I'm gonna have to make one.
Anyone who has more to offer than, "Quit while you're ahead!" is much appreciated. I don't like giving up, but I know I'm in over my head here. If the switches are all good, then it has to be a relay problem? How do I isolate it? Should I just replace all 3 relays and hope for a miracle?
The entry door motor gear reducer blew a seal and the oil leaked out. I replaced the door motor with a current UL-325-2010 compliant (Liftmaster GH1043-L4) one with a logic board control, and now I have a problem. ...................................................
Somehow I am ending up with a "maintained" close command, which after 2 minutes the door operator recognizes this as a "fault" and won't work unless i pull the close wire off the terminal. And I can't live at this place.
Thanks for reading!