6 Troubleshooting
- 87 -
Fault Name
Operating
Panel
Display
Cause
Possible Solution
Accumulative
power-on time
reached
E 29.00
The accumulative
power-on time
reached the set
value.
Clear the record by parameter initialization.
Load becomes 0
E 30.00
The operation
current of the drive
is smaller than F9-64
(Load loss detection
level).
Check whether the load becomes 0 or ensure
that F9-64 (Load loss detection level) and F9-
65 (Load loss detection time) are set based on
the actual conditions.
PID Feedback
loss
E 31.00
PID feedback is
smaller than FA-26
(Detection level of
PID feedback loss)
Check the PID feedback signal or set FA-26
correctly.
Speed error
E 42.00
Encoder parameters
are set improperly.
Set encoder parameters properly.
Motor auto-tuning is
not performed.
Perform motor auto-tuning.
F9-69 (Detection
level of speed error)
and F9-70 (Detection
time of speed error)
are set incorrectly.
Set F9-69 and F9-70 correctly based on actual
condition.
Motor
overspeed
E 43.00
Encoder parameters
are set improperly.
Set encoder parameters properly.
Motor auto-tuning is
not performed.
Perform motor auto-tuning.
F9-67 (Overspread
detection level) and
F9-68 (Overspeed
detection time) are
set incorrectly.
Set F9-67 and F9-68 correctly based on the
actual situation.
Motor overheat
E 45.00
Cable connection
of the temperature
sensor becomes
loose.
Check cable connection of the temperature
sensor.
The motor
temperature is too
high.
Increase carrier frequency or take other
measures to cool the motor.
The setting of
F9-57 (Motor
overheat protection
threshold) is too
small.
Adjust the setting of motor overheat protection
threshold between 90° C to 100° C.
