Inovance SV820N Series User Manual

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5 Troubleshooting
5
5.3 Troubleshooting of Faults
Note
Takethecurrentoperationaxis3asanexample.
■ E3.101: system parameter abnormal
Cause:
The total number of parameters changes, which generally occurs after software updates.
The actual parameter values of group 2002h and later exceed the limit, which generally occurs after software
updates.
Probable Cause ConrmingMethod Corrective Action
1. The control power
voltage drops
instantaneously.
Checkwhetherthecontrolpower(L1C,L2C)is
cut off or whether an instantaneous power failure
occurs.
Restore the default setting (2002-20h=1),
and rewrite the parameters.
Measure whether the control power voltage
on the non-drive side is within the following
specications:
220Vdrive:
Effectivevalue:220Vto240V
Allowederror:–10%to+10%(198Vto264V)
380Vdrive:
Effectivevalue:380V–440V
Allowederror:–10%to+10%(342Vto484V)
Increase the power capacity or replace
with a large-capacitance power supply.
Restore the default setting (2002-20h=1),
and rewrite the parameters.
2. Instantaneous
power failure
occurs during
parameter
storage.
Checkwhetherinstantaneouspowerfailure
occurs during parameter storage.
Power on the system again, restore the
default setting (2002-20h=1), and rewrite
the parameters.
3. The times of
parameter writing
within a certain
period exceeds the
limit.
Checkwhethertheparameterupdateis
performed frequently from the host controller.
Change the parameter writing method
and rewrite parameters.
If the servo drive is faulty, replace it.
4. The software is
upgraded.
Checkwhetherthesoftwareisupgraded.
Reset the servo drive model and the
servo motor model, and restore the
default setting (2002-20h=1).
5. The servo drive is
faulty.
If the servo drive is powered off and powered on
several times and the default setting is restored,
but the fault persists, it indicates that the servo
drive is faulty.
Replace the servo drive.

Inovance SV820N Series Specifications

General

Brand	Inovance
Model	SV820N Series
Category	Servo Drives
Language	English