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Unread 11-11-2014, 11:11 AM   #11
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Default Re: 96 48V SERIES intermittent start-stop

I saw the video, please remember that Series motors have no speed regulation and will spin to self destruction, so that wood block holding the pedal is not a good idea...

This is a controller cart right? If so, set your Multimeter to 20v DC scale and put it between pins #2 and #3 on the controller.

Does the voltage change as the speed goes up and down?
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Unread 11-11-2014, 12:09 PM   #12
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Default Re: 96 48V SERIES intermittent start-stop

Quote:
Originally Posted by scottyb View Post
When the cart cuts out make note if the solenoid is clicking. Listen carefully to identify the solenoid click when you start to go. If you hear this click again when the cart cuts out then you can assume it is a solenoid activation problem like bad micro switch or loose connection.
If no solenoid click when the cart cuts out then assume the problem is either in the Vglide, F&R high amperage contacts, or the motor
OK thanks, that helps me alot. There is only one click when I step on the accel. When the cart cuts out, the solenoid does NOT click, in fact, it only clicks again when I take my foot off of the accel.

I pulled my V-Glide off. HERE is the picture. Can I just clean up the contacts as with a commutator?

QUESTION: When the V-Glide was still hooked up, I could pull back, or separate, the contacts. WHY did the motor speed up and not stop??
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Unread 11-11-2014, 12:14 PM   #13
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Default Re: 96 48V SERIES intermittent start-stop

Quote:
Originally Posted by Sergio View Post
I saw the video, please remember that Series motors have no speed regulation and will spin to self destruction, so that wood block holding the pedal is not a good idea...

This is a controller cart right? If so, set your Multimeter to 20v DC scale and put it between pins #2 and #3 on the controller.

Does the voltage change as the speed goes up and down?
Thanks. Is there an OHM test for this as I have the V-Glide off of the cart right now?
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Unread 11-11-2014, 12:37 PM   #14
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Default Re: 96 48V SERIES intermittent start-stop

You should have all of the resistors on the other side of the V-Glide picture you posted.

Look at them for sign of damage, you may have a cracked one making intermittent contact.
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Unread 11-11-2014, 12:44 PM   #15
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Default Re: 96 48V SERIES intermittent start-stop

Quote:
QUESTION: When the V-Glide was still hooked up, I could pull back, or separate, the contacts. WHY did the motor speed up and not stop??
You have a 0-5k V-Glide, so separating the arm is the same as going full throttle (max resistance).

The V-Glide shorts out one by one the resistors as You press the pedal until You get to 0K.
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Unread 11-11-2014, 12:54 PM   #16
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Default Re: 96 48V SERIES intermittent start-stop

I think the 96 was a mid year change from 0-5k to 5k-0. A quick check with the ohm Ω meter will tell what he has here. And he may be able to replicate any erratic signal transmission if tested before any clean up?
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Unread 11-11-2014, 01:12 PM   #17
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Default Re: 96 48V SERIES intermittent start-stop

95 is when CC went 5k-0. 96 should have that throttle
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Unread 11-11-2014, 01:36 PM   #18
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Default Re: 96 48V SERIES intermittent start-stop

If it was 5k-0 it should not have speed up by removing the wiper from the contacts as You would need 0k to go full speed.

Most likely there is a crack on one of the resistors as it only fails once current is flowing thru and the small current introduced by the ohmmeter will not likely make it fail.

Edit: never mind on my first point, I guess it would depend on how the controller would handle the "no voltage" condition. Scary to think that it handles a disconnected cable by going full speed.
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Unread 11-11-2014, 02:11 PM   #19
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Default Re: 96 48V SERIES intermittent start-stop

Quote:
Originally Posted by Sergio View Post
If it was 5k-0 it should not have speed up by removing the wiper from the contacts as You would need 0k to go full speed.

Most likely there is a crack on one of the resistors as it only fails once current is flowing thru and the small current introduced by the ohmmeter will not likely make it fail.

Edit: never mind on my first point, I guess it would depend on how the controller would handle the "no voltage" condition. Scary to think that it handles a disconnected cable by going full speed.
Many Thanks to All. I'll pull the other side off and check the resistors. Are they a serviceable item? Radio Shack??
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Unread 11-12-2014, 08:55 AM   #20
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Default Re: 96 48V SERIES intermittent start-stop

Quote:
Originally Posted by Sergio View Post
If it was 5k-0 it should not have speed up by removing the wiper from the contacts as You would need 0k to go full speed.

Most likely there is a crack on one of the resistors as it only fails once current is flowing thru and the small current introduced by the ohmmeter will not likely make it fail.

Edit: never mind on my first point, I guess it would depend on how the controller would handle the "no voltage" condition. Scary to think that it handles a disconnected cable by going full speed.
Not sure I completely understand how this thing works, but can someone give me some guidance with regards to checking these resistors? Are they available? Thanks, again, for the help.
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