SCHUNK STM 48V, Сборка и руководство по эксплуатации

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Troubleshooting
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13 Troubleshooting
13.1 SCHUNK Torque Motor STM
13.1.1 STM is not turning
Possible cause Corrective action
Interruption in the supply lines

Check the supply lines for defects

Check the electrical connections (see chapter 7.2, page 30)
No motion release

Check the controller settings (see operating manual for the
controller; for the MCS-12, see MotionControl.pdf on the DVD)
Controller defective

Check whether there is voltage at the controller's output. If there is
no voltage:
a) Check the connection pin assignment (see chapter 7.2,
page 30)
b) Consult the operating manual for the controller
Target value line or communi-
cation between master and
controller is interrupted

Check the target value line and communication.
Rotor is blocked mechanically

Check the mechanical components.

Check the evenness at the mounting surface
(see chapter 7.1 page 27)
Shaft encoder defective

Check shaft encoder and its connection. If a defect is detected, the
STM must be sent to SCHUNK with a repair order.
Short-circuit between turns in
the motor

Check the difference of the winding resistance values. Do not
exceed the difference.

If the difference between the individual motor phases exceeds
0.1 Ohm, the STM must be sent to SCHUNK with a repair order.
Short-circuit to ground due to
moisture
short-circuit to ground due to
electrical defect

Check the protective conductor.

Check the electrical connection and connectors for ground leakage.

If the STM has a ground leak while the power cable is disconnected,
the STM must be sent to SCHUNK with a repair order.
Incorrect phase connections

Check the electrical connections (see chapter 7.2, page 30)
Incorrect controller settings

Check the parameters and setting values
(see operating manual for the controller)
Motor phases or encoder sig-
nals confused

Check the electrical connections (see chapter 7.2, page 30)

Check the encoder signals and the shielding of the encoder cable.
Table 33