IS810N-INT Series Servo System User Manual (Brief)Chapter 7 Troubleshooting
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Probable Cause Conrming Method Corrective Action
3. Locked-rotor
occurs due to
mechanical factors.
Check the running reference and motor
speed (200B-01h) through Inovance servo
commissioning software or the keypad:
Running reference in position control:
200B-0Eh
(Input position reference counter)
Running reference in speed mode:
200B-02h
(Speed reference)
Running reference in torque mode:
200B-03h
(Internal torque reference)
Check that the running reference is
not 0 but the motor speed is 0 in the
corresponding mode.
Eliminate mechanical factors.
4. The servo drive
gain is too low.
Check the position loop gain and speed
loop gain of the servo drive.
1st gain: 2008-01h to 2008-03h
2nd gain: 2008-04h to 2008-06h
Adjust the gain manually or
perform gain auto-tuning.
5. The position
reference
increment is too
large.
Position control mode:
In CSP mode, view the gear ratio
6091-01h/6091-02h to check the
speed reference increment for a single
synchronous cycle and convert it to speed.
In PP mode, view the gear ratio
6091-01h/6091-02h and check the value of
6081h (prole velocity).
In HM mode, view the gear ratio
6091-01h/6091-02h, and determine
6099-01h and 6099-02h.
CSP: Decrease the position
reference increment for a
single synchronous cycle,
and the host controller needs
to increase the position ramp
additionally when generating
references.
PP: Decrease the value
of 6081h, or decrease the
acceleration/deceleration
ramp (6083h, 6084h).
HM: Decrease 6099-01h and
6099-02h, or decrease the
acceleration/deceleration
ramp (609Ah).
Decrease the gear ratio
according to the actual
conditions.
6. Relative to the
running condition,
6065h (following
error window) is too
small.
Check whether the setting of 6065h is too
small.
Increase the value of 6065h.
7. The servo drive
or motor is faulty.
Monitor the running curve through the
oscilloscope function in Inovance servo
commissioning software:
Position reference, position feedback,
speed reference, torque reference
If the position reference
is not 0, but the position
feedback is always 0, replace
the servo drive or motor.