Description of Fault Codes
‑81‑
Cause
Confirming Method
Solution
6. The value of 6065h
(H0A.10) is insufficient for
the operating conditions.
Check the value of 6065h.
Increase the setpoint of
6065h.
7. The servo drive/motor is
faulty.
Monitor the operating
waveforms using the
oscilloscope function in the
software tool:
position reference, position
feedback, speed reference,
torque reference
If the position reference is
not 0 but the position
feedback is always 0, replace
the servo drive or motor.
● EB00.1: Position deviation overflow
Cause:
The position deviation is too large.
Cause
Confirming Method
Solution
1. U/V/W output phase loss
or incorrect phase sequence
occurs on the servo drive.
Perform a no‑load trial run
on the motor and check the
wiring.
Connect cables again
according to the correct
wiring diagram or replace
the cables.
2. The servo drive U/V/W
cables or the encoder cable
is disconnected.
Check the wiring.
Connect the cables again.
The servo drive power
cables must be connected in
the correct order at both
ends. Replace with new
cables if necessary and
ensure cables are connected
properly.
3. The motor is stalled due
to mechanical factors.
Check the reference and
motor speed (H0b.00)
through the software tool or
keypad.
● References in the position
control mode: H0b.13
(Input position reference
counter)
● References in the speed
control mode: H0b.01
(Speed reference)
● References in the torque
control mode: H0b.02
(Internal torque reference)
Check whether the reference
value is not 0 but the motor
speed is 0 rpm in the
corresponding mode.
Eliminate the mechanical
factors.
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