Universal instruments corporation - TAB Bonder - Z Axis DAC limit error during Absolute command

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I have a Universal Instruments Corporation TAB Bonder. Oldis... - Sep 30, 2013 by richardconnell

I'd take a look at the power supply for the failed axis and ... - Oct 01, 2013 by SWAG

Hi, I have limited capability on the Z axis. The axis wil... - Oct 01, 2013 by richardconnell

richardconnell

#71171

Universal instruments corporation - TAB Bonder - Z Axis DAC limit error during Absolute command | 30 September, 2013

I have a Universal Instruments Corporation TAB Bonder. Oldish machine.

Initial fault on machine : - "Axis Head 1 Z DAC Limit error during move absolute command" Other fault seen after we reset power, Zeroed axis etc. - Axis Head 1 - Z error not recognized during checking zero command.

Z-Limit sensor seems to operate fine. Turned off Z Brake and belt turns easilt and Z Axis goes up and down.

Can we see the encoder feedback for the Z Axis to see what it is doing ? Has anyone any other ideas regarding these issues ? I have an old procedure which talks about a complicated setup if BELT, Motor or encoder are changed on the Z Axis.

Any ideas

Thanks Folks..

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SWAG

#71181

Universal instruments corporation - TAB Bonder - Z Axis DAC limit error during Absolute command | 1 October, 2013

I'd take a look at the power supply for the failed axis and see if it's still working. I've also seen encoders fail on motors but it's rare in my experience. Usually it's a power issue.

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richardconnell

#71182

Universal instruments corporation - TAB Bonder - Z Axis DAC limit error during Absolute command | 1 October, 2013

Hi,

I have limited capability on the Z axis. The axis will home to the mechanical switch limit and then drop to a point which I asssume to be the fiorst zero point below the mechanical switch limit.

Then it gives the error. There is power to the motor. It does lift and drop the axis.

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