can't get SERVO ON in playback mode.

Hi guys,

I have old but never used OTC robot with AX21 controller. Robot works fine in teach mode but I can't start it in automatic mode.

I can't get SERVO ON lock. SERVO ON led on operation box flashes. I get error message when pressing START button.

I2106 Playback unavailable because servo system has not been turned on yet
The start is impossible, because the start operation is done before MSHP is turned on. Please start after turning on MSHP.

Facts:

1.Robot is stand alone with OPERATION box connected. Never used.

2.I have 6 jumpers connected on TBEX 1(I/0 sequence board)

3.TBEX2 is empty(I/0 sequence board)

4.On TBOP1 I have 3 jumpers. 5-6 8-9 10-11(TP relay board)

5. Attached picture with teach/playback settings.

Also attached videos and pictures on this link:

https://photos.app.goo.gl/m9XYbjuftfLpZRZSA

I am missingg something and I can't find out what ?

Can someone help?

Thank you all

Hi bsrr

Thank you for your answer. I appreciate your help

Can you explain a little bit more? Do I need to check some wires or some parameters?

I have disabled shock sensor and I don't think any of the axes are over the limit ?

Additional pictures in this link:

https://photos.app.goo.gl/m9XYbjuftfLpZRZSA

Thanks again

Hi Bsrr,

You are right. SERVO ON works. It was shock sensor. It wasn't enough that I deactivate it in signal conditioning but it also needs to be physically short circuit. I did it on manipulator on connector. Attached picture.

Case closed.

Thank you again Bsrr and thank you for being active on this forum. excellent work.

PS. Do you maybe have some OTC/NACHI AX21 manuals regarding welding?

Best regards,