Description of Fault Codes
‑58‑
Description:
A wrong U/V/W phase sequence is detected during angle auto‑tuning.
Cause
Troubleshooting
Solution
Incorrect UVW wiring is
detected during angle auto‑
tuning.
Check whether U/V/W
phases are wired correctly.
Exchange cables of any two
phases among U/V/W and
perform auto‑tuning again.
● E605.0: Motor speed too high upon S‑ON
Description:
The motor speed exceeds the rated speed when the servo drive in size A/B is
switched on.
Cause
Troubleshooting
Solution
The motor speed exceeds
the rated speed when the
servo drive is switched on.
Check if the drive is enabled
when the motor has been
driven.
Switch on the drive when
the motor is standstill.
● E620.0: Motor overload
Description:
The accumulative heat of the motor reaches the fault threshold.
Cause
Troubleshooting
Solution
1. The motor and encoder
cables are connected
incorrectly or in poor
contact.
Check the wiring between
the servo drive, servo motor
and the encoder according
to the correct “wiring
diagram”.
Connect the cables
according to the 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.
Check the overload
characteristics of the servo
drive or servo motor.
Check whether the average
load rate (H0b.12) of the
servo drive keeps exceeding
100.0%.
Use a servo drive of higher
capacity and a matching
servo motor, or reduce the
load and increase the
acceleration/deceleration
time.
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