Description of Fault Codes
‑38‑
An excessively high current flows through the positive pole of the DC‑AC circuit.
Cause
Troubleshooting Solution
1. Gains are set improperly,
leading to motor oscillation.
Check whether vibration or
sharp noise occurs during
start and operation of the
motor, or view "Current
feedback" in the software
tool.
1. Motor parameters are set
improperly, modify motor
parameter values.
2. Current loop parameters
are set improperly,
modify current loop
parameter values.
3. Speed loop parameters
are set improperly,
leading to motor
oscillation.
4. Servo drive operates
improperly. Replace it.
2. The encoder is wired
improperly, aging, or
connected loosely.
Check whether the encoder
cable provided by Inovance
is used.
Check whether the cable is
aging, corroded, or
connected loosely.
Switch off the S‑ON signal
and rotate the motor shaft
manually. Check whether
the value of H0b.17h
(Electrical angle) changes as
motor shaft rotates.
Re‑solder, tighten or replace
the encoder cable.
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