2bc erl Westinghouse

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#17573 - 07/19/16 10:14 PM 2bc erl Westinghouse
Joined: Mar 2013 Posts: 15 Ceege stranger
Ceege stranger Joined: Mar 2013 Posts: 15	Lookin for some input or paperwork for a erl Westinghouse 74 vintage. Elevator runs too fast. Trying to figure what makes the voltage stops increasing once it gets to speed

#17575 - 07/20/16 12:28 AM Re: 2bc erl Westinghouse [Re: Ceege]
Joined: May 2011 Posts: 487 E-man addict
E-man addict Joined: May 2011 Posts: 487	Is the car running away? Have you adjusted HS on the regulator?

#17579 - 07/20/16 11:35 AM Re: 2bc erl Westinghouse [Re: E-man]
Joined: Feb 2013 Posts: 761 john jay old hand
john jay old hand Joined: Feb 2013 Posts: 761 ohio	try checking the Zener Diode.

#17583 - 07/20/16 08:47 PM Re: 2bc erl Westinghouse [Re: john jay]
Joined: Jan 2014 Posts: 141 Boa member
Boa member Joined: Jan 2014 Posts: 141 NC	Not sure if this helps. On the older versions of the ERL controllers low insulation resistances to ground on the main loop circuits could cause overspeeding in one direction and not being able to properly compound

#17585 - 07/20/16 11:49 PM Re: 2bc erl Westinghouse [Re: Boa]
Joined: Jan 2014 Posts: 432 Vatorgator addict
Vatorgator addict Joined: Jan 2014 Posts: 432	check the 6 relays in the motor field circuit. low motor field voltage will cause car to overspeed

#17633 - 07/27/16 09:56 PM Re: 2bc erl Westinghouse [Re: Vatorgator]
Joined: Mar 2013 Posts: 15 Ceege stranger
Ceege stranger Joined: Mar 2013 Posts: 15	Tried adjusting hs pot and nothing, I'm gettin over speed in both directions, but what's weird is it randomly worked absolutely perfect for like two hours and right before I was going to turn it loose it permanently crapped out. We've had this on contract for five years and it never ran that good, don't know if that throws any other signs up. Thanks guy

#17666 - 08/04/16 12:52 AM Re: 2bc erl Westinghouse [Re: Ceege]
Joined: Jan 2014 Posts: 736 Rolly old hand
Rolly old hand Joined: Jan 2014 Posts: 736	If the HS pot does not change anything you could have a Motor Field problem or a bad SCR or circuit Board Controlling Generator Field. Have you checked Standing, running, & forcing voltages? If you have more then one car, check and compare the Ohms in Motor Fields. Have you checked with a Tachometer how fast it is really going? Make sure you have no grounds in Loop Circuit.

#17697 - 08/08/16 06:40 PM Re: 2bc erl Westinghouse [Re: Rolly]
Joined: Dec 2012 Posts: 8 B69T69 stranger
B69T69 stranger Joined: Dec 2012 Posts: 8 Dixie CSA	Sounds like it might be shored look circuit to me look for shorted brush rigging's be be 10 meg of higher to ground.

#17709 - 08/10/16 08:45 AM Re: 2bc erl Westinghouse [Re: Rolly]
Joined: Aug 2011 Posts: 563 uppo72 addict
uppo72 addict Joined: Aug 2011 Posts: 563	Originally Posted By: Rolly If the HS pot does not change anything you could have a Motor Field problem or a bad SCR or circuit Board Controlling Generator Field. Have you checked Standing, running, & forcing voltages? If you have more then one car, check and compare the Ohms in Motor Fields. Have you checked with a Tachometer how fast it is really going? Make sure you have no grounds in Loop Circuit. Hey Rolly, what do you mean by forcing voltages? Which area?

#17710 - 08/11/16 12:07 AM Re: 2bc erl Westinghouse [Re: uppo72]
Joined: Dec 2015 Posts: 1,541 Indirtwetrust ElevatorPractitioner
Indirtwetrust ElevatorPractitioner Joined: Dec 2015 Posts: 1,541 Local 18	He's talking about the motor field voltage/current. Forcing is full field.

#17711 - 08/11/16 12:36 AM Re: 2bc erl Westinghouse [Re: Indirtwetrust]
Joined: May 2011 Posts: 487 E-man addict
E-man addict Joined: May 2011 Posts: 487	Does the car run fine (speeds are the same in both directions) on hand?

#17714 - 08/11/16 07:25 AM Re: 2bc erl Westinghouse [Re: Indirtwetrust]
Joined: Aug 2011 Posts: 563 uppo72 addict
uppo72 addict Joined: Aug 2011 Posts: 563	Originally Posted By: Indirtwetrust He's talking about the motor field voltage/current. Forcing is full field. Ah ok I understand now. I only ask as I haven't come across anyone in our parts who call it this, but just call it the pattern circuit s curve and loop circuit build up.

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