I have been through the wringer a bunch on my elevator. I had it up and running and some people were testing the replacement of my curtains (I ordered new ones from woodfold) while I was away. Apparently, a zip tie broke and a line of MC with the front curtain safety switch, the top of car E-stop, and a cat 5 we ran to move the battery to the top of the car for easy replacement were snagged and froze up the elevator.
We replaced the wiring and I am to the point where the safety circuit is entirely whole. A fuse (the 2amp slow blow I think is 24v line) was blown and I replaced this as well. We re-routed the MC that was enasing the wires and we zip-tied it. We have tested everything and I have gotten the elevator to show that everything is "normal".
The problem I am running into is the elevator car will not move. We have cranked it manually and it will move up and down. I don't believe that mechanically it is bound. With my pendant, I cannot get the car to move in either direction. It will start to move and then fail stopping its whine. It will maybe move 1/4" or less. My thought is that the electronic brake isn't letting up. When in Auto mode the contactor for the brake is pulling in. When I go in Remote mode and use the pendant I press the safety and up or down and the contactor also does pull in - but the behavior is still as if the brake is engaged. How this is related to the incident where the MC with those wires were torn is unclear to me but things were functioning properly prior to this incident.
I am under pressure because my father-in-law lives in our basement and he can not climb the steps. The only way he can get to the main living area is via this elevator.
Any suggestions or recommendations would be very appreciated. I follow all safety standards and I take it very seriously. I don't want to get hurt or injured working on this so I am very careful and I realize any suggestions here are at my own risk. I am just up the creek without a paddle at this point and struggling to find a solution and concerned I have a major motor issue which I pray is not the case.
Thanks in advance and for reading this far!
Neil
i don't want to try to argue credentials or qualifications. I understand I am on my own safety-wise and whatnot but I am looking for some suggestions or recommendations
I have checked the voltage leading to the contactor on port 13 and 14 for the brake. I have power on the brake - before the contactor is engaged 107 volts. When I engaged the elevator I saw it drop to 70v. I checked the resistance of the brake and it came out at .3 ohms.
I tried to operate the elevator today and the contactor engages and it starts I see the the output on the VFD move up and then it showed FLU then .1 .3 .5 .4 1.6 then dCb and then back to rdY. when I go down FLU 0.0 .1 rUn rdY.
It is an Access Lev installed around 2007 the PLC was replaced in 2013. There is a PLC separate from the VFD.
We cranked the motor manually with the handwheel - it was NOT easy to do. I assume there might have been an easier way?
You can see my setup here:
Thanks!
This is the motor and on the end of it we can insert the hand wheel and crank.