Inovance SV670N Series - Page 73

Description of Fault Codes
‑72‑
An encoder multi‑turn counting error occurs.
Cause
Confirming Method
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
Cause:
A multi‑turn counting overflow occurs on the absolute encoder.
Cause
Confirming Method
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) is
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
Cause:
Communication timeout occurs on the absolute encoder.
Cause
Confirming Method
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
Cause:
A communication error occurs on the RX side of the encoder.