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raghudt

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  1. Hi Thanks for looking at this. I have been using a PMAC Mini (ISA) for performing 2 axis of servo motion. Axis 1 was used for Torque Control; Axis 2 was used for Position (Velocity) Control. It has worked ok for many years. Last week, I could not get it to Jog properly on Axis 2. Using PEWin software, if I issue a Jog Stop ( J/ ) command, the motor is energized and immediately starts moving at a slow rate in one direction. Attempts to change the direction using the J+ or J- command has no effect. Also Jog to Position command ( J:xxxx) does not work. I measured the Servo Voltage output from the PMAC Mini card. It was around 150mV before energizing; and sligtly more positive (155 mV) when the J/ command was issued. No change at all when a J:1000 command is issued. Is this a problem with some variables becoming corrupt? Or is the PMAC card dead? Thanks for any help!
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