Inovance SV670N Series - Page 24

Description of Warning Codes
‑23‑
Cause
Confirming Method
Solution
1. The motor cables and
encoder cable are
connected improperly or in
poor contact.
Check the wiring among the
servo drive, servo motor and
the encoder according to
the correct wiring diagram.
Connect cables according to
the correct wiring diagram.
It is recommended to use
the cables provided by
Inovance.
When customized cables are
used, prepare and connect
the customized cables
according to the wiring
instructions.
2. The load is so heavy that
the effective torque
outputted by the motor
keeps exceeding the rated
torque.
Confirm the overload
characteristics of the servo
drive or motor.
Check whether the average
load rate (H0b.12) keeps
exceeding 100.0%.
Use a servo drive of higher
capacity and a 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
inertia auto‑tuning. View the
value of H08.15 (load
moment of inertia ratio).
Confirm the individual
operation cycle when the
servo motor operates
cyclically.
Increase the acceleration/
deceleration time.
4. The gain values are
improper or the stiffness
level is too high.
Check whether the motor
vibrates and generates
unusual noise during
operation.
Adjust the gains again.
5. The servo drive model or
motor model is set
improperly.
View the model of the motor
equipped with a serial‑type
encoder in H00.05 and the
servo drive model in H01.10.
Read the servo drive
nameplate and set the Servo
servo drive model (H01.10)
and motor model properly
according to section "Servo
Drive Model and Nameplate"
in SV670N Series Servo Drive
Selection Guide.