RoboDrill Fanuc 368 serial data error

[pupetxls]

Hi,

I get a 368 alarm on the Z axis of a Robodrill.
I swaped the encoder and the cable with the y axis to check which one is the culprit. Both work fine.

I imagined it should be the drive card from the driver. I have H209 for X,Y and H105 for Z axis.
I also have a spare H207.
I took out the drive card from the H207, and mounted it in the H105.

I still get the alarm. I either have two broken drive cards, or the problem is somewhere else. Servo card is one year old, so I doubt it.

Any ideas from someone with experience?

Thanks,
Mihai

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[mbservice]

Did the alarm move to the other amplifier ?