MODE button cannot fucntion well !!!

[kongguan]

I meet a very weird problems with my CM-5.

First, the MODE button (red one) on one of my CM-5 doesnt fucntion well. I means when I press it, CM-5 doesnt do any response.

At that time, I think that was hardware problem, so I replace the CM-5 with another. After some days I use it on my BIOLOID robot, its fine, but today,
when I want to double check the motion of my robot, the CM-5 shows out a error 8100, then when I restart the CM-5, the MODE button cannot function again, just like the previous one.

What is the reason of this weird and serious problem?????????

[Dewey]

Have you tried the obvious and charged the battery (or run the CM5 with the power unit)?

The CM5 gives all sorts of 'funny' errors as the battery voltage drops.

[kongguan]

Have you tried the obvious and charged the battery (or run the CM5 with the power unit)?

The CM5 gives all sorts of 'funny' errors as the battery voltage drops.

I tried many ways to fixed the problem.
I used CM-5 with power unit.
I updated the firmware again.
I used another connection line for CM-5 and computer.
I connected CM-5 with USB Series Port and also RS232 port directly.
I download the motion file and behavior control program again.
...
but the MODE button is still cannot function.....

[BillB]

Try with only one dynamixel attached.

I have had a error 8100 twice:
- The first time was when there were two dynamixels on the same bus sharing the same ID. The resolution was to check that all dynamixels had a unique ID by connecting each dynamixel to the CM-5 one at a time and noting the ID.
- The second time I had an error 8100 was more odd, I had stored the CM5 in a cold garage for a few months where it remained unused. When I took it out of storage and tried to use it without attaching any Dynamixels it errored 8100. In this case the resolution was to plug in one dynamixel and leave it on & plugged into the DC adapter for a few hours. It had been working fine since then. I know it is strange - but it worked for me.

Hope this helps.

[kongguan]

Try with only one dynamixel attached.

I have had a error 8100 twice:
- The first time was when there were two dynamixels on the same bus sharing the same ID. The resolution was to check that all dynamixels had a unique ID by connecting each dynamixel to the CM-5 one at a time and noting the ID.
- The second time I had an error 8100 was more odd, I had stored the CM5 in a cold garage for a few months where it remained unused. When I took it out of storage and tried to use it without attaching any Dynamixels it errored 8100. In this case the resolution was to plug in one dynamixel and leave it on & plugged into the DC adapter for a few hours. It had been working fine since then. I know it is strange - but it worked for me.

Hope this helps.

I replace the problem CM-5 with other, it works well, which means all the motors are well and NO such problem like having the same ID.
And I charged the problem CM-5 with DC adapter and without connecting to any Dynamixels up to 5 hours, but the MODE button now also cannot function.....