Posted By: Truegrit2
DMC1 doors open / close every 20sec - 10/30/19 01:46 PM
I’ve got a DMC1 with doors cycling normal speed every 20, or so, sec with no demand..
Car runs perfectly when demand placed, no delay, close limit is made at closed position
Any tips?
Thank you
Posted By: Elevator_Logic
Re: DMC1 doors open / close every 20sec - 10/30/19 07:00 PM
DMC doors cycle if it thinks a hoistway door is open at a floor it isn't at. I would clean all HW door interlocks and see if the problem goes away. Also it could have a bad curtain/Safe Edge.
Posted By: lowoil
Re: DMC1 doors open / close every 20sec - 10/30/19 08:49 PM
Check door position count and faults if you have dmc fast.
Posted By: elmcannic
Re: DMC1 doors open / close every 20sec - 10/30/19 09:32 PM
1) Built up junk on door tracks at locked position.
2) Linkage from operator to car door needs looked at for loose bolts on driving arms.
3) Shorting SE or PHE cable
4) Broken limit collar...or maladjusted limits.
5) Door belt deformed on the motor sheave at full closed position.
6) Door belt walking off of big sheave near closed position.
All common stuff, but #1 is common on Dover.
Hope you have a FAST tool if it’s not a mechanical issue.
Posted By: xxXBlazeXxx
Re: DMC1 doors open / close every 20sec - 10/31/19 12:26 AM
If its not any of the mentioned above which it could be then relearn and SAVE the door position.