Inovance SV670P Series - Page 48

Description of Fault Codes
‑47‑
Cause
Confirming Method
Solution
3. The servo drive is faulty.
Disconnect the power cables
from the servo drive, but the
fault persists after the servo
drive is powered off and on
repeatedly.
Replace the servo drive.
4. The motor speed is too
high during grounding
detection.
Check whether the motor is
in the generating status
during power‑on.
Reduce the motor speed.
● E234.0: Runaway
Cause:
The torque reference direction is opposite to the speed feedback direction in the
torque control mode.
The speed feedback direction is opposite to the speed reference direction in the
position or speed control mode.
Cause
Confirming Method
Solution
1. The U/V/W cables are
connected in the wrong
phase sequence.
Check whether the servo
drive power cables are
connected in the correct
sequence at both ends.
Connect the U/V/W cables in
the correct phase sequence.
2. An error occurs on the
initial phase detection of the
motor rotor due to
disturbing signals upon
power‑on.
The UVW phase sequence is
correct. But Er.234 occurs
when the servo drive is
enabled.
Power off and on the servo
drive again.
3. The encoder model is
wrong or the encoder is
wired improperly.
View the servo drive and
servo motor nameplates to
check whether the devices
used are Inovance SV670P
series servo drive and 23‑bit
servo motor.
Replace with a mutually‑
matching servo drive and
servo motor. For use of of
SV670P series servo drive
and 23‑bit servo motor, set
H00.00 to 14101. Check the
motor model, encoder type,
and encoder cable
connection again.