Inovance IS650PT037IUX Series - Warning: Motor Overload

5 Troubleshooting
5
- 60 -
Cause Conrming Methods Corrective Action
5. The servo drive or motor
model is set incorrectly.
For IS650P series products, view serial
encoder motor model in H00-05 and servo
drive model in H01-02.
View servo drive nameplate and
set servo drive model (H01-02)
correctly and replace matching servo
motor according to the IS650P User
Manual.
6. Locked-rotor occurs due to
mechanical factors, resulting
in very heavy load during
running.
Check running reference and motor speed
(H0B-00) by using the drive debugging
platform of Inovance or operating panel.
Running reference in the position control
mode: H0B-13 (input reference pulse
counter)
Running reference in speed control: H0B-
01 (speed reference)
Running reference in torque control: H0B-
02 (internal torque reference)
Check running reference in corresponding
mode is not 0 but the motor speed is 0.
Eliminate mechanical factors.
7. The servo drive is faulty.
Power off the servo drive and then power it
on again.
If the fault persists after re-power-on,
replace the servo drive.
Er.920: Regenerative resistor overload
Cause Conrming Methods Corrective Action
1. Wiring of external regenerative
resistor is in poor connection,
becomes loose or breaks.
Disconnect external regenerative
resistor and measure whether
resistance of the resistor is ∞.
Measure whether resistance between
P
and C is ∞.
Replace a new external regenerative
resistor and measure its resistance.
If the resistance is consistent with
nominal value, connect it between
P
and C.
Select a new cable and connect it
between
P
and C.
2. Jumper across terminals P
and D is shorted or disconnected
when the internal regenerative
resistor is used.
Measure whether resistance between
P
and D is ∞.
Select a new cable and connect it
between
P
and D.
3. Setting of H02-25 is incorrect
when external regenerative
resistor is used.
View setting value of H02-25.
Measure resistance of external
regenerative resistor connected
between
P
and C. Check whether
the resistance is too large by
comparing it with the regenerative
resistor specication table in the
IS650P User Manual.
Check whether setting value of
H02-27 is greater than resistance
of external regenerative resistor
connected between
P
and C.
Set H02-25 correctly according to the
IS650P User Manual.
H02-25 = 1 (external regenerative
resistor used, naturally ventilated)
H02-25 = 2 (external regenerative
resistor used, forcible cooling)
4. Resistance of the used
external regenerative resistor is
too large.
Select a proper regenerative resistor
according to the IS650P User Manual.
5. H02-27 (resistance of external
regenerative resistor) is larger
than resistance of the used
external regenerative resistor.
Set H02-27 (resistance of external
regenerative resistor) consistent with
the resistance of the selected external
regenerative resistor.