Description of Fault Codes
‑67‑
Cause
Troubleshooting
Solution
Check whether resonance
that occurred during ITune
operation cannot be
suppressed.
Check whether there is
abnormal noise or torque
fluctuation during
operation.
1. Set the notch manually
when vibration cannot be
suppressed
automatically.
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. Increase the value of
H09.11 as appropriate.
● E664.0: Resonance too strong
Description:
Resonance occurs on the servo system and the torque fluctuation amplitude is
higher than the value of H09.54.
Cause
Troubleshooting
Solution
Resonance occurs on the
servo system and the torque
fluctuation amplitude is
higher than the value of
H09.54.
Check whether there is
abnormal noise or torque
fluctuation during
operation.
1. Check whether the inertia
ratio or loop gain
parameters are set
properly.
2. Check whether resonance
parameters are set
properly.
3. Increase the value of
H09.54 or set H09.54 to 0
to disable this function.
● E731.0: Encoder battery failure
Description:
The voltage of the absolute encoder battery is lower than 2.9V.
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