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#26390 - 04/02/19 01:46 PM Dmc1 door close problem  
Joined: Aug 2016
Posts: 440
Jluff Offline
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Jluff  Offline
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Losing WD 1 and 2 on door control board. Door stays open. What controls WD on door board ?

#26391 - 04/02/19 02:10 PM Re: Dmc1 door close problem [Re: Jluff]  
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Jluff Offline
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It’s intermittent and happens on all floors. WD Light on door board flickers and drops out. Door stays open.

#26393 - 04/02/19 02:56 PM Re: Dmc1 door close problem [Re: Jluff]  
Joined: Dec 2015
Posts: 1,168
Indirtwetrust Offline
ElevatorPractitioner
Indirtwetrust  Offline
ElevatorPractitioner

Joined: Dec 2015
Posts: 1,168
Local 18
An open motor armature will cause the watchdog to drop out. Check the motor & brushes. Other than that, verify your 12 & P150 voltages, if good replace door board.

#26401 - 04/02/19 10:07 PM Re: Dmc1 door close problem [Re: Jluff]  
Joined: Oct 2012
Posts: 262
Philly Offline
enthusiast
Philly  Offline
enthusiast

Joined: Oct 2012
Posts: 262
Just replace board. Most likely cause. Swap it from another car for certification

#26436 - 04/03/19 07:48 PM Re: Dmc1 door close problem [Re: Jluff]  
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Jluff Offline
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Jluff  Offline
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Changed the board. Still WD1 and WD2 flickering and door not closing.

#26437 - 04/03/19 08:22 PM Re: Dmc1 door close problem [Re: Jluff]  
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Jluff Offline
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Jluff  Offline
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I am not losing WD. that is lit all the time. It’s WD 1 and WD 2

#26438 - 04/03/19 09:56 PM Re: Dmc1 door close problem [Re: Jluff]  
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Indirtwetrust Offline
ElevatorPractitioner
Indirtwetrust  Offline
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Local 18
Have you checked the motor and voltages?

#26444 - 04/04/19 03:47 AM Re: Dmc1 door close problem [Re: Jluff]  
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Jluff Offline
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Jluff  Offline
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I can not find wd1 and wd2 on the print How would you properly check the door motor ?

Last edited by Jluff; 04/04/19 03:50 AM.
#26448 - 04/04/19 02:39 PM Re: Dmc1 door close problem [Re: Jluff]  
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Indirtwetrust Offline
ElevatorPractitioner
Indirtwetrust  Offline
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Local 18
WD1 is on when you have voltage at DA1, WD2 is in when you have voltage at DA2. To check the motor, unplug the leads, make sure neither read to ground, connect your meter across them reading resistance, rotate the motor a very small amount and stop until you get around several times. Every time the resistance reading settles it should be roughly the same resistance. If it’s ever very high, you have a problem. Make sure P150 doesn’t drop while running the motor. If it does, you may have a PY2 or PY4 board with no cap from P150 to G150 in the controller or a bad cap under the board. I kind of doubt it’s an encoder problem since the doors work in one direction and the encoder is just 2 optical switches.

#26450 - 04/04/19 03:33 PM Re: Dmc1 door close problem [Re: Jluff]  
Joined: Oct 2012
Posts: 262
Philly Offline
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Philly  Offline
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Posts: 262
Sounds like a bad capacitor to me

#26451 - 04/04/19 03:47 PM Re: Dmc1 door close problem [Re: Jluff]  
Joined: Dec 2015
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Indirtwetrust Offline
ElevatorPractitioner
Indirtwetrust  Offline
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Joined: Dec 2015
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Local 18
If it is you should see the P150 drop when the door tries to move

#26457 - 04/04/19 09:16 PM Re: Dmc1 door close problem [Re: Jluff]  
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Jluff Offline
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Jluff  Offline
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Changed the door motor and it’s working good .. thanks guys.

#26522 - 04/12/19 01:04 PM Re: Dmc1 door close problem [Re: Jluff]  
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Jluff Offline
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Jluff  Offline
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Happened again after 8 days working great. It was happening every 10 times or so the doors opened before replacing the door motor. Now I’m very confused

#26523 - 04/12/19 01:51 PM Re: Dmc1 door close problem [Re: Jluff]  
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Jluff Offline
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Jluff  Offline
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Is The capacitor located on the PCB relay board in machine room? Does the whole board need to be replaced ? There is a 4-6 week lead time to order this board from vertical express.

#26525 - 04/12/19 02:00 PM Re: Dmc1 door close problem [Re: Jluff]  
Joined: Mar 2017
Posts: 29
ashley Offline
newbie
ashley  Offline
newbie

Joined: Mar 2017
Posts: 29
Jluf You can get a board from World electronics shipped the same day, or for half the cost send yours in for repair.

#26650 - 04/19/19 01:09 AM Re: Dmc1 door close problem [Re: Jluff]  
Joined: Sep 2015
Posts: 61
TCElevator Offline
journeyman
TCElevator  Offline
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Joined: Sep 2015
Posts: 61
Vertical express
World electronics
Sees
You can get the board next day from al of them.
Yes the cap is in machine room but really is not even needed


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