Inovance IS810N-INT Series - Page 250

IS810N-INT Series Servo System User Manual (Brief) Chapter 7 Troubleshooting
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E1.730: Encoder battery alarm
Cause:
The battery voltage of the absolute encoder is lower than 3.0 V.
Probable Cause Conrming Method Corrective Action
The battery voltage
of the absolute
encoder is lower
than 3.0 V.
Measure the battery voltage.
Use a new battery with the
matching voltage.
E1.909: Motor overload warning
Cause:
Accumulative heat of 60Z series 200 W and 400 W motors reaches the warning threshold.
Probable Cause Conrming Method Corrective Action
1. Wiring of the
motor and encoder
is incorrect or in
poor contact.
Check the wiring between the servo
drive, servo motor and the encoder
according to the correct wiring
diagram.
Connect the wirings according to
the correct wiring diagram.
Preferably use the cables
recommended by Inovance.
When self-made cables are used,
prepare and connect the cables
according to the hardware wiring
instructions.
2. The load is too
heavy. The motor
keeps output of
effective torque
higher than the
rated torque for
a continuous
operation.
Conrm the overload characteristics
of the servo drive or servo motor.
Check whether the average load
ratio (200B-0Dh) exceeds 100.0%
for a long time.
Use a servo drive of larger capacity
and matching servo motor.
Reduce the load and increase the
acceleration/deceleration time.
3. Acceleration/
deceleration is too
frequent or the load
inertia is too large.
Check the mechanical inertia ratio or
perform the inertia auto-tuning. Then
view 2008-10h (load inertia ratio).
Check the single running cycle when
the servo motor runs circularly.
Increase the acceleration/
deceleration time.
4. The gain is
improper, or the
stiffness is too
high.
Check whether the motor vibrates
and produces abnormal noise during
running.
Re-adjust the gain.
5. The servo drive
or motor model is
set incorrectly.
View the bus motor model in
2000-06h and servo drive model in
2001-0Bh.
View the servo drive nameplate
and set the servo drive model
in 2001-0Bh correctly and use a
matching servo motor according to
Section 2.3.