Description of Fault Codes
‑65‑
Cause
Troubleshooting
Solution
During STune operation, the
gain drops to the lower limit.
Position loop gain < 5
Speed loop gain < 5
Model loop gain < 10
Check if vibration resonance
is properly suppressed in the
system. The torque vibration
amplitude exceeds the
setpoint of H09.11.
1. Set the notch manually.
2. Modify the electronic gear
ratio to improve the
command resolution,
increase the command
filter time constant in the
parameter configuration
interface.
3. Check whether the
machine suffers from
periodic fluctuation.
4. Set H09.58 to 1 to clear
resonance suppression
parameters, and perform
STune again.
● E662.0: ETune failure
Description:
Check whether resonance that occurred during ETune operation cannot be
suppressed.
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