I am trying to run two axes independently with a PCI-7344 motion controller through a UMI-7764. I am running each axis in velocity mode.
I have tested both axes with the Constant_Velocity_Move[1].vi, one works smoothly and the other is erratic, with the motor speeding up to maximum, then stopping, and overall not following the input velocity. I have been through the Board Configuration file in MAX with a fine tooth comb - the configuration for both axes is identical, as are the PID parameters. It is not the motor hardware; I have checked the analogue output with a dvm and the readings reflect the motor response described above.
Any suggestion gratefully received.
