Troubleshooting guidelines, Commissioning – Pilz Cable PMCprimoDrive>Mod-Profibus:L=0,45m User Manual
Page 42
Commissioning
8-4
Operating Manual: PMCtendo AC
Troubleshooting guidelines
The table below only lists the errors that directly affect the servo motor. You should also
refer to the error messages for the servo amplifier you are using. Multi-axis systems with
higher level position control systems may also have additional error causes.
Remedy
• Apply the enable signal
from the servo amplifier
• Check the set point cable
• Connect the motor phases correctly
• Check the brake control
• Check the mechanics
Lift the current limitation in the servo
amplifier
or
Use a larger motor or servo amplifier
• Check feedback offset and
set the parameters correctly
• Change the direction of rotation
in the servo amplifier
• Connect the motor phases correctly
• Change the feedback line
• Adjust the controller
• Swap the cable
• Swap the motor
• Check the plug-in connection
• Check the wiring
Wait for the motor to cool down, then:
• Check the connector and cable
• Possibly use a new cable
• Check the specification of the
holding brake
• Swap the motor
• Check the axial load and
reduce if necessary,
also swap the motor because the
bearings are damaged
Fault
Motor does not
rotate
Motor spins
(positive
feedback)
Motor vibrates
Error message
Output stage
error
Error message
Feedback
Error message
Motor
temperature
Holding brake
doesn’t catch
Potential error cause
• Servo amplifier has not been enabled
• Set point cable is broken
• Motor phases transposed
(incorrect phase sequence)
• Brake has not been released
• Drive is mechanically blocked
• Torque is too low
• Incorrect feedback offset
• Motor phases transposed
(cyclically transposed, correct phase
sequence)
• Shield on the feedback line
is broken
• Invalid control parameters
• Motor cable has a short
circuit or earth fault
• Motor has a short
circuit or earth fault
• Feedback connector is not inserted
correctly
• Feedback line is broken,
crushed or similar
• Thermal switch has energised
• Connection to the thermal switch
is broken
• Required holding torque is too
high
• Holding brake is defective
• Motor shaft axially overloaded