Re: 1200GTO CP3 Hand Controller Blinks, Clicks, Restarts


Aug 13, 2015

 


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#48628 Aug 13, 2015

The display on my hand controller blinks, apparently constantly restarting. At the same time, there is the sound of a relay clicking in the hand controller.

The red LED on the CP3 control box remains steady throughout.

I have put a DVOM on my BK Precision DC power supply and it looks steady, but I don't have an o-scope, and I don't have an extra DC supply, so I can't be certain the power supply is good. A friend will lend me a known good power supply next week.

I have visually inspected all of the connections on the CP3 control box and they look OK. I have strain relief on all cables that are connected to the CP3.

I keep the DC supply set at 18V due to a fairly heavy load (well within specs, though) and recent cold winters.

From this limited information, does it sound like the problem could be a faulty hand controller?

Thanks!



David Illig



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#48630 Aug 13, 2015

Could be a bad wire in the hand control cable either in the plug that goes into the CP3 or where the cable end plugs into the hand controller circuit board. It could also be a bad connection on one of the ribbon plugs inside the hand control.Don Anderson

From: "daffyddsant@... [ap-gto]" ap-gto@yahoogroups.com> To: ap-gto@yahoogroups.com Sent: Thursday, August 13, 2015 7:28 PM Subject: [ap-gto] 1200GTO CP3 Hand Controller Blinks, Clicks, Restarts

 The display on my hand controller blinks, apparently constantly restarting. At the same time, there is the sound of a relay clicking in the hand controller.

The red LED on the CP3 control box remains steady throughout.

I have put a DVOM on my BK Precision DC power supply and it looks steady, but I don't have an o-scope, and I don't have an extra DC supply, so I can't be certain the power supply is good. A friend will lend me a known good power supply next week.

I have visually inspected all of the connections on the CP3 control box and they look OK. I have strain relief on all cables that are connected to the CP3.

I keep the DC supply set at 18V due to a fairly heavy load (well within specs, though) and recent cold winters.

From this limited information, does it sound like the problem could be a faulty hand controller?

Thanks!



David Illig



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#48631 Aug 13, 2015

Possibly an oxidized plug connection inside of the hand controller,where the coiled cable plugs into the circuit board. Or a flaky power connection. 

ChristopherEricksonConsulting EngineerSummit KineticsWaikoloa, HI96738www.summitkinetics.com

 



From: ap-gto@yahoogroups.com[mailto:ap-gto@yahoogroups.com] Sent: Thursday, August 13, 2015 4:40PMTo: ap-gto@yahoogroups.comSubject: Re: [ap-gto] 1200GTOCP3 Hand Controller Blinks, Clicks, Restarts



Could be a bad wire in the hand control cableeither in the plug that goes into the CP3 or where the cable end plugs into thehand controller circuit board. It could also be a bad connection on one of theribbon plugs inside the hand control.DonAnderson



From: "daffyddsant@... [ap-gto]"ap-gto@yahoogroups.com>To: ap-gto@yahoogroups.com Sent: Thursday, August 13, 2015 7:28PMSubject: [ap-gto] 1200GTOCP3 Hand Controller Blinks, Clicks, Restarts

 The display on my handcontroller blinks, apparently constantly restarting. At the same time, there isthe sound of a relay clicking in the hand controller.

The red LED on the CP3control box remains steady throughout.

I have put a DVOM on myBK Precision DC power supply and it looks steady, but I don't have an o-scope,and I don't have an extra DC supply, so I can't be certain the power supply isgood. A friend will lend me a known good power supply next week.

I have visuallyinspected all of the connections on the CP3 control box and they look OK. I havestrain relief on all cables that are connected to the CP3.

I keep the DC supplyset at 18V due to a fairly heavy load (well within specs, though) and recentcold winters.

From this limitedinformation, does it sound like the problem could be a faulty handcontroller?

Thanks!



David Illig



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#48705 Aug 18, 2015

I had a similar issue occasionally. I also noted that I could grab the DC power plug and wiggle the actual socket it goes into. I wondered if the socket could be tightened. On close inspection I noted that there was no nut around the threaded socket. I had a spare nut from another socket screwed that in snugged it down and it cured the problem. As far as I know there was never a nut from the factory on it so either it isn't used....or vibrated off and got lost. But all is snug now and no further issues.



Bob Berta


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