Inovance SV660F Series - Page 69

Description of Fault Codes
‑68‑
Cause
Troubleshooting
Solution
1. The battery is not
connected during power‑off.
Check whether the battery is
connected during power‑off.
Set H0d.20 to 1 to clear the
fault.
2. The encoder battery
voltage is too low.
Measure the battery voltage.
Use a new battery with the
matching voltage.
● E733.0: Encoder multi‑turn counting error
Description:
An encoder multi‑turn counting error occurs.
Cause
Troubleshooting
Solution
The encoder is faulty.
Set H0d.20 to 2 to clear the
fault, but E733.0 persists
after restart.
Replace the motor.
● E735.0: Encoder multi‑turn counting overflow
Description:
A multi‑turn counting overflow occurs on the absolute encoder.
Cause
Troubleshooting
Solution
The number of forward
revolutions exceeds 32767
or the number of reverse
revolutions exceeds 32768.
Check whether the value of
H0b.70 (Number of absolute
encoder revolutions) reach
32767 or 32768 when the
servo drive works in the
absolute linear mode
(H02.01 = 1).
Set H0d.20 to 2 to power on
again. Perform homing if
necessary.
● E740.0: Absolute encoder communication timeout
Description:
Communication timeout occurs on the absolute encoder.
Cause
Troubleshooting
Solution
The communication
between the servo drive and
the encoder times out.
Check the wiring of the
encoder and power on the
servo drive again.
1. Check whether the
encoder version (H00.04)
is set properly.
2. Check whether the servo
drive software version
(H01.00).
3. Check the encoder cable
connections.
4. Replace the servo motor.
● E740.2: Absolute encoder error
Description:
A communication error occurs on the RX side of the encoder.