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When the machine is off, push the axis by hand. If it is very difficult to move the axis then:
check the lead screw, axis alignment, coupler, or band drive, and contact Micro-Vu support.
Put Turn the machine in on and press the E-Stop and push . Push the affected axis manually. Compare the feel to when the machine is in standbyby hand. Strong braking should be felt when the E-Stop is pressed. Turn the machine is in E-Stop compared to in standbyon and release the E-stop and place the machine on Standby. Push the affected axis by hand. Braking should be weak compared to strong braking felt when the E-stop is pressed. Compare the braking between both scenarios. If the braking when the E-stop is pressed is weak (compare to the working axis), or intermittent, then one of the following has a hardware issue:
Motor Cable
Motor
Amplifier Board
When the machine is running and idle, push the affected axis. It should serve to resist motion.
If the axis is very easy to push, then one of the following has a hardware issue:
Motor Cable
Motor
Amplifier Board
The cable between the Logic Board and Amplifier Board
Logic Board
If clearing the Stall Fault causes another axis to jump:
The motor or encoder cables are mixed up between the axis.
Push the axis and watch whether the encoder values in MotorScope correspond count correctly.
Put Press the machine in E-Stop and unplug each motor cable in turn to make sure that the braking corresponds correctly.
If the Stall Fault stops occurring with certain motors disconnected:
There is a short somewhere in the motor, cable, or Amplifier Board:
With the machine off, check for electrical continuity between the motor leads and the chassis of the machine. It should be an open circuit.
If not, there is a short. Unplug the machine immediately and contact the Micro-Vu support!
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