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Dover hydro with Ibm relays.
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#32275
-
12/26/21
01:23 AM
Dover hydro with Ibm relays.
Joined:
Aug 2016
Posts: 5
Bigshow79
stranger
Bigshow79
stranger
Joined:
Aug 2016
Posts: 5
Car runs but doors wont open.I have 300dc at Da1 and Da2.
#32277
-
12/26/21
02:45 AM
Re: Dover hydro with Ibm relays.
[
Re: Bigshow79
]
Joined:
Nov 2009
Posts: 413
Johnny
Journeyman
Johnny
Journeyman
Joined:
Nov 2009
Posts: 413
Portland. Oregon
Open Armature, bad brushes ????
#32278
-
12/26/21
02:49 AM
Re: Dover hydro with Ibm relays.
[
Re: Bigshow79
]
Joined:
Nov 2009
Posts: 413
Johnny
Journeyman
Johnny
Journeyman
Joined:
Nov 2009
Posts: 413
Portland. Oregon
300VDC relative to what?? each other (answer above) referenced to negative on rectifier?? referenced to Positive on rectifier?? Do you have a door operator print??
#32280
-
12/26/21
12:29 PM
Re: Dover hydro with Ibm relays.
[
Re: Bigshow79
]
Joined:
Aug 2016
Posts: 765
Jluff
old hand
Jluff
old hand
Joined:
Aug 2016
Posts: 765
I had this once on a DMC. . It was bad capacitor under door controller But it was intermittent
Last edited by Jluff;
12/26/21
12:29 PM
.
#32281
-
12/26/21
04:38 PM
Re: Dover hydro with Ibm relays.
[
Re: Bigshow79
]
Joined:
Apr 2013
Posts: 17
slider
stranger
slider
stranger
Joined:
Apr 2013
Posts: 17
If you are reading 300vdc between DA1 and DA2, then motor armature is open, probably the motor brushes
#32282
-
12/26/21
11:59 PM
Re: Dover hydro with Ibm relays.
[
Re: Bigshow79
]
Joined:
Aug 2016
Posts: 5
Bigshow79
stranger
Bigshow79
stranger
Joined:
Aug 2016
Posts: 5
Yes. I have a faded door operator prints. If i open the door with operator de energized. When its energized it will close it. Bad re
#32283
-
12/27/21
01:17 PM
Re: Dover hydro with Ibm relays.
[
Re: Bigshow79
]
Joined:
Feb 2013
Posts: 765
john jay
old hand
john jay
old hand
Joined:
Feb 2013
Posts: 765
ohio
I would look at the capacitors that are paralleled around the contacts on the open and close relays. One of them is most likely shorted.
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