Manual

0198441113730, V2.02, 03.2011
BRS3 6 Diagnostics and troubleshooting
3-phase stepper motor 67
6
6 Diagnostics and troubleshooting
6.1 Mechanical problems
6.2 Electrical problems
Error Cause Troubleshooting
Excessive heat Overload
Holding brake not released
Heavy pollution
Reduce load
Check the holding brake controller
Clean the motor
Whistling or knocking noise Rolling bearings Contact service
Grinding noise Rotating output component grinds Align output component
Radial oscillation Poor alignment of output component
Output element out of balance
Shaft bent
Resonance with mounting elements
Align output component
Balance output component
Contact service
Check the stiffness of the motor mounting
Excessive heat Overload
Holding brake not released
Heavy pollution
Reduce load
Check the holding brake controller
Clean the motor
Encoder does not operate or
only operates sporadically
Encoder damaged due to axial movement
of the motor shaft (maximum axial load
exceeded)
Verify that the permissible axial force is not
exceeded.
Error Cause Troubleshooting
Motor does not start or starts
with problems
Overload
Unsuitable settings for the drive
Cable damaged
Reduce load
Check drive settings
Check cables and connections
Excessive heat Overload Reduce power
Heat at the connection termi-
nals
Connector loose or not tightened Tighten connector