Current Setup: PXI 6704 connected to SCB68A. On one of the analog outputs, I have a motor (powered via 24 VDC and controlled by 0-5V via PXI 6704).
During power up (powering up the PXI chassis), 0 volts are shown from the 0-5 V ouput. When I shutdown (i.e. turn off 24 VDC power supply and PXI Chassis, a 3.64 Volt spike develops at the 0-5V output and the motor spins then shuts down as the powersupply is also shut off during this time.
I tried leaving the AO ground open and also grounded to the 24 VDC common. Both result in the same issue.
Any ideas on how to fix this?
Thanks for the help.