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Forum: Troubleshooting Fri 16 November 2007, 08:57
Replies: 45
Views: 44,772
Posted By Gerald D
For the others keenly following this thread and...

For the others keenly following this thread and wondering if their motors might also get damaged in this way, I think I need to put minds at rest, but at the same time give the "heads up" on the...
Forum: Troubleshooting Thu 15 November 2007, 11:07
Replies: 45
Views: 44,772
Posted By Gerald D
Daya, it is indeed tragic to hear that your...

Daya, it is indeed tragic to hear that your motors are gone. I asked at the geckodrive forum if anyone has hints on what might have caused it. Mariss has already replied:...
Forum: Troubleshooting Thu 15 November 2007, 09:52
Replies: 45
Views: 44,772
Posted By Gerald D
Mike, wouldn't it be more important that the coil...

Mike, wouldn't it be more important that the coil inductances matched, rather than the resistances? And it can't be any fun to match inductances . . . . the best he could do is to match wire size,...
Forum: Troubleshooting Thu 15 November 2007, 08:48
Replies: 45
Views: 44,772
Posted By Gerald D
Daya, on the latest drawings there is a note to...

Daya, on the latest drawings there is a note to include GFI (Ground Fault Interrupt) protection. In Sri Lanka it might be called RCD (residual current), or Earth Leakage, protection....
Forum: Troubleshooting Thu 15 November 2007, 04:58
Replies: 45
Views: 44,772
Posted By Gerald D
Daya, you are the very first person I hear of...

Daya, you are the very first person I hear of that is attempting to rewind the stepper motor. I don't know if anyone of us are qualified to advise you, but we are surely very interested in the...
Forum: Troubleshooting Thu 08 November 2007, 04:13
Replies: 45
Views: 44,772
Posted By Gerald D
Why would 3 sets of leadwires short out together?...

Why would 3 sets of leadwires short out together? Why would dust do it to all together?

Whether it is dust or the lead wires shorting, it is still inside the motor and there is only one way to...
Forum: Troubleshooting Thu 08 November 2007, 01:49
Replies: 45
Views: 44,772
Posted By Gerald D
Dust could have caused it. Did you read my...

Dust could have caused it. Did you read my experience at the ShopBot forum at the link I gave you above? Sounds like your situation.

Remember, the very standard advice is that you should never...
Forum: Troubleshooting Thu 08 November 2007, 00:09
Replies: 45
Views: 44,772
Posted By Gerald D
Are the wires not touching each other? If...

Are the wires not touching each other?

If you cannot turn the motors by hand (while the wires don't touch other) then the motor/gearbox is damaged or there is dirt stuck inside. Okay, they are...
Forum: Troubleshooting Wed 07 November 2007, 22:24
Replies: 45
Views: 44,772
Posted By Gerald D
Found a pic of your motors: ...

Found a pic of your motors:

http://www.mechmate.com/Forum/messages/329/3396.jpg
Forum: Troubleshooting Wed 07 November 2007, 22:20
Replies: 45
Views: 44,772
Posted By Gerald D
Daya, are the motors disconnected (lying on the...

Daya, are the motors disconnected (lying on the workbench) when you measure the resistance, or try to turn the shafts?

Are your motors direct drive, or with gearboxes? If direct drive, I would be...
Forum: Troubleshooting Wed 07 November 2007, 04:46
Replies: 45
Views: 44,772
Posted By Gerald D
Daya, you are using a PMDX-135...

Daya, you are using a PMDX-135 (http://www.pmdx.com/PMDX-135/) and I wonder if that has gone faulty. But that should never cause live voltage on the frame. My guess is:

1. Some mechanical event...
Forum: Troubleshooting Wed 07 November 2007, 04:24
Replies: 45
Views: 44,772
Posted By Gerald D
He changed the transformer later. The Gecko's are...

He changed the transformer later. The Gecko's are G202's - red light is good, no light could mean anything.:

http://www.mechmate.com/Forum/messages/329/3391.jpg

Daya, under that condition I...
Forum: Troubleshooting Wed 07 November 2007, 04:18
Replies: 45
Views: 44,772
Posted By Gerald D
For reference, this is Daya's (Fabrica's) board...

For reference, this is Daya's (Fabrica's) board in Sri Lanka:

http://www.mechmate.com/Forum/messages/329/3271.jpg

Sean, I have had a bad night with flu, so you saw me at some very strange...
Forum: Troubleshooting Wed 07 November 2007, 04:14
Replies: 45
Views: 44,772
Posted By Gerald D
Yes, it sure is. Still that early? It's lunch...

Yes, it sure is. Still that early? It's lunch time here, and Daya probably wants to go home for supper.
Forum: Troubleshooting Wed 07 November 2007, 04:01
Replies: 45
Views: 44,772
Posted By Gerald D
That is very unusual. Are your Geckos (can't...

That is very unusual. Are your Geckos (can't remember your type) showing fault lights? (Motors very, very rarely go faulty - I have not heard of a faulty motor for years). Did you have lightning? Did...
Forum: Troubleshooting Wed 07 November 2007, 03:40
Replies: 45
Views: 44,772
Posted By Gerald D
If they all suddenly stopped together, then it is...

If they all suddenly stopped together, then it is definitely:
- not the motors
- not the Geckodrives

Either:
- the Geckos are not getting the (big) power from your transformer supply system,...
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