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Have you guys seen this problem b4 ?

Bioloid robot kit from Korean company Robotis; CM5 controller block, AX12 servos..
9 postsPage 1 of 1
9 postsPage 1 of 1

Have you guys seen this problem b4 ?

Post by UncleBob » Thu Sep 16, 2010 7:13 am

Post by UncleBob
Thu Sep 16, 2010 7:13 am

Hi guys I am getting this problem very very often. I think the controller might be faulty. Have any of you seen this before. Appreciate your help.

phpBB [media]
Hi guys I am getting this problem very very often. I think the controller might be faulty. Have any of you seen this before. Appreciate your help.

phpBB [media]
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Post by Gort » Fri Sep 17, 2010 12:37 am

Post by Gort
Fri Sep 17, 2010 12:37 am

I will see if I can replicate the problem.








http://mike-ibioloid.blogspot.com/
I will see if I can replicate the problem.








http://mike-ibioloid.blogspot.com/
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Post by billyzelsnack » Sat Sep 18, 2010 12:55 am

Post by billyzelsnack
Sat Sep 18, 2010 12:55 am

If I'm understanding what's going on.. It's probably the overload protection. I'm surprised this is the first time you've run across it. Supposedly there is a way to coax the servo back alive ( maybe setting torque limit to zero or something I can't remember ) without rebooting, but I've never been able to make it happen.
If I'm understanding what's going on.. It's probably the overload protection. I'm surprised this is the first time you've run across it. Supposedly there is a way to coax the servo back alive ( maybe setting torque limit to zero or something I can't remember ) without rebooting, but I've never been able to make it happen.
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Post by siempre.aprendiendo » Sat Sep 18, 2010 11:22 am

Post by siempre.aprendiendo
Sat Sep 18, 2010 11:22 am

As billyzelsnack said, if the LEDs are blinking that is the servo overload protection.
As billyzelsnack said, if the LEDs are blinking that is the servo overload protection.
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Post by UncleBob » Sun Sep 19, 2010 6:03 am

Post by UncleBob
Sun Sep 19, 2010 6:03 am

Symtom
1. Servos do not have red light
2. Happens when more servos are moving
3. Once happen, it is hard to make it go away
4. Put the controller in freezer helps
5. Only the communcation with PC does not work. Robotask will run if already in robot.

Probable solution.
Put limit on all servos (maybe some of them got stuck)
a. This seems to alleviate the problem but not completely. Maybe controller already damage.
b. Does not look like a fail safe feature.
c. Problem still occurs sometimes even without using it for long time, after switch on and off several times it is ok. Once ok, problem don't usually occur.
Symtom
1. Servos do not have red light
2. Happens when more servos are moving
3. Once happen, it is hard to make it go away
4. Put the controller in freezer helps
5. Only the communcation with PC does not work. Robotask will run if already in robot.

Probable solution.
Put limit on all servos (maybe some of them got stuck)
a. This seems to alleviate the problem but not completely. Maybe controller already damage.
b. Does not look like a fail safe feature.
c. Problem still occurs sometimes even without using it for long time, after switch on and off several times it is ok. Once ok, problem don't usually occur.
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Post by Fritzoid » Mon Sep 20, 2010 11:08 am

Post by Fritzoid
Mon Sep 20, 2010 11:08 am

UncleBob,

What makes you think that this is a problem with the controller as opposed to a problem with RoboPlus Motion?
UncleBob,

What makes you think that this is a problem with the controller as opposed to a problem with RoboPlus Motion?
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Post by Gort » Mon Sep 20, 2010 1:54 pm

Post by Gort
Mon Sep 20, 2010 1:54 pm

UncleBob,

Can you tell us more about your battery setup?
UncleBob,

Can you tell us more about your battery setup?
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Post by UncleBob » Mon Sep 20, 2010 2:01 pm

Post by UncleBob
Mon Sep 20, 2010 2:01 pm

Nothing special just 2 x 3 cells in parallel. But 10c each though.
Nothing special just 2 x 3 cells in parallel. But 10c each though.
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Post by i-Bot » Mon Sep 20, 2010 2:21 pm

Post by i-Bot
Mon Sep 20, 2010 2:21 pm

I would check out the whole power suplly chain:
Try different batteries.
Check cables thoroughly. Check fuse and holder, switch, connectors.
Poor or intermittent connections give strange effects, especially when there are large caps in the controller.
I would check out the whole power suplly chain:
Try different batteries.
Check cables thoroughly. Check fuse and holder, switch, connectors.
Poor or intermittent connections give strange effects, especially when there are large caps in the controller.
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9 postsPage 1 of 1