Inovance SV670N Series - Page 23

Description of Warning Codes
‑22‑
Cause
Confirming Method
Solution
DI (DI1...DI5) function
parameters are set to invalid
values.
Check whether H04.00,
H04.02, H04.04, H04.06, and
H04.08 are set to invalid
values.
Set DI function parameters
to valid values.
● E902.1: DO setting invalid
Cause:
DO function parameters are set to invalid values.
Cause
Confirming Method
Solution
DO (DO1...DO5) function
parameters are set to invalid
values.
Check whether H04.00 and
H04.02 are set to invalid
values.
Set DO function parameters
to valid values.
● E902.2: Invalid setting for torque reach
Cause:
The DO parameters set for torque reach in the torque control mode are invalid.
Cause
Confirming Method
Solution
The DO parameters set for
torque reach in the torque
control mode are invalid.
Check whether the value of
H07.22 is lower than or
equal to the value of H07.23
(unit: 0.1%).
Set H07.22 to a value higher
than that of H07.23.
● E908.0: Model identification failure
Cause
Confirming Method
Solution
1. The model identification
check word store in e2prom
is incorrect.
1. Check whether the
warning persists after
restart.
Set H01‑72 to 1 to disable
model identification
temporarily.
2. The model parameters are
not written in the drive
before delivery.
2. Check whether
parameters can be saved to
e2prom.
● E909.0: Motor overload warning
Cause:
The accumulative heat of the motor reaches the warning threshold (90% of the
maximum allowable heat).