Inovance SV820N Series - Page 106

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5 Troubleshooting
5
Probable Cause ConrmingMethod Corrective Action
6. Locked-rotoroccursdue
to mechanical factors,
resulting in very heavy
load during running.
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.
7. The servo drive is faulty.
The fault persists after the servo drive is powered
on again.
Replace the servo drive.
■ E3.630: Overheat protection for locked-rotors
Cause:
The actual motor speed is lower than 10 RPM but the torque reference reaches the limit. The duration reach-
es the value set in 200A-21h.
Probable Cause ConrmingMethod Corrective Action
1. Power output (UVW)
phase loss or incorrect
phase sequence occurs
in the servo drive.
Perform motor trial running when there is no load
andcheckthemotorwirings.
Correct the wiring or replace
the cables.
2. The servo drive UVW
cable or the encoder
cablebreaks.
Checkwirings.
Correct the wiring or replace
the cables.
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.