Inovance SV660F Series - Page 22

Description of Warning Codes
‑21‑
DO function parameters are set to invalid values.
Cause
Troubleshooting
Solution
DO (DO1...DO3) function
parameters are set to invalid
values.
Check whether H04.00,
H04.02, and H04.04 are set
to invalid values.
Set DO function parameters
to valid values.
● E902.2: Invalid setting for torque reach
Description:
The DO parameters set for torque reach in the torque control mode are invalid.
Cause
Troubleshooting
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
Description:
Model identification check code error.
Cause
Troubleshooting
Solution
1. The model identification
check word store in EEPROM
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
EEPROM.
● E908.1: Inverter model setting mismatch
Description:
The inverter model is set improperly.
Cause
Troubleshooting
Solution
1. The model identification
check word store in EEPROM
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
EEPROM.
● E920.0: Regenerative resistor overload
Description:
The accumulative heat of the regenerative resistor exceeds the set value.