Inovance IS620P Series - Er.630: Overheat Protection of Locked-Rotor Motor

Chapter 6 Troubleshooting IS620P User Manual
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Cause Conrming Method Corrective Action
6. Locked-rotor occurs
due to mechanical
factors, resulting
in very heavy load
during running.
•
Check the running reference and the
actual motor speed (H0B-00) by using
the drive debugging platform of Inovance
or the operation panel.
Running reference in the position control
mode: H0B-13 (input reference pulse
counter)
Running reference in the speed control
mode: H0B-01 (speed reference)
Running reference in the torque control
mode: H0B-02 (internal torque reference)
Check the running reference in
corresponding mode is not 0 but the
motor speed is 0.
Eliminate mechanical factors.
7. The servo drive is
faulty.
•
The fault remains after the servo drive is
powered off and then powered on again.
Replace the servo drive.
Note
You can clear the fault or re-power on the system 30s after occurrence of the overload fault.
27. Er.630: Overheat protection of locked-rotor motor
Cause:
•
The actual motor speed is lower than 10 rpm but the torque reference reaches the limit.
The duration reaches the value set in H0A-32.
Cause Conrming Method Corrective Action
1. The power output
phase (UVW) loss
or incorrect phase
sequence occurs on
the servo drive.
•
Perform motor trial running when the
motor has no load and check the motor
wiring.
Connect the motor cables
correctly again or replace
them.
2. The UVW cables
or the encoder cable
breaks.
•
Check the wiring.
Connect the motor cables and
encoder cable correctly again
or replace them.
3. The motor rotor
is locked due to
mechanical factors.
•
Check the running reference and the
actual motor speed (H0b-00) by using the
drive debugging platform of Inovance or
the operation panel.
Running reference in the position control
mode: H0B-13 (input reference pulse
counter)
Running reference in the speed control
mode: H0B-01 (speed reference)
Running reference in the torque control
mode: H0B-02 (internal torque reference)
Check whether the running reference
in corresponding mode is not 0 but the
motor speed is 0.
Eliminate mechanical factors.