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stubborn following error

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Hi Everybody,

 

I'm working with a PCI-7344 and I keep getting following errors for one of the axes. I've checked almost everything I can think of. No matter what I do it moves in the right direction but won't stop at the desired position. It keeps going until the controller kills it due to following error. 

 

I've switched axes to make sure that one isn't defective. Made sure there are no loose connections and that everything is hooked up correctly. 

When I give the system a command to move positive it moves positive which means that the encoder and command wires are hooked up correctly. It's also the same configuration as the other working axis. It has the exact same motors and encoders wired up exactly the same way. This is also how I know the encoder resolution is set up correctly. 

The motor has enough torque to move the system.

 

The only thing I can think of is improperly set PID parameters. I've tried everything but can't seem to find a combination that works. Autotune sometimes works but also produces following errors. Sometimes autotune will set some parameters but the axis won't respond to any commands from MAX.

 

Anybody have any ideas on how to fix this issue?

 


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