NSK M-EGA-15A2301, User Manual

Page: 192 / 237

8.Maintenance Trouble shooting
8-2
■
Motor hangs up.
Investigation Assumed causes and corrective actions
Check the motor power line.
■
Phase order of motor power line is wrong.
✔
When performing the work for correction processing, be sure to intercept power supply.
■
Motor is vibrating.
Investigation Assumed causes and corrective actions
Motor is vibrating with frequency above 200
[Hz].
■
Reduce the loop gain speed.
■
Set the torque command low-pass filter and torque
command notch filter.
■
Occurs over shoot/ under shoot during starting / stopping.
Assumed causes and corrective actions
■
Adjust the auto tuning
“
response
“
.
■
Reduce the loop gain speed.
■
Increase the velocity integral time constant.
■
Simplify the acceleration and declaration command.
■
Set position command filter.
■
Abnormal sound occurs
Investigation Assumed causes and corrective actions
Operate at a low speed and check whether
abnormal sound has periodicity.
■
Confirm that the wiring for encoder line and motor
power line are not installed in the same port.
■
Confirm that the power supply voltage is sufficient.
Check whether there is any problem in
mechanical attachment.
■
Observe by operating motor without mechanical
attachment.
■
Pay attention while coupling and confirm that there
is no core shift or unbalance.