Inovance SV820N Series - Page 96

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5 Troubleshooting
5
■ E3.107: communication loss of main processor
Cause:
Cyclichandshakecommunicationbetweenmainprocessorandcoprocessorislost.
Probable Cause ConrmingMethod Corrective Action
Internal communication failure
The fault persists after the servo drive
is powered off and on several times.
Replace the servo drive.
■ E3.108: parameter storage fault
Cause:
Parameter values cannot be written to EEPROM.
Parameter values cannot be read from EEPROM.
Probable Cause ConrmingMethod Corrective Action
1. Parameter writing is
abnormal.
Modify a parameter, power on the servo
driveagainandcheckwhetherthe
modicationissaved.
Ifthemodicationisnotsavedandthefault
persists after the servo drive is powered
off and on several times, replace the servo
drive.
2. Parameter reading
is abnormal.
■ E3.111: group 2000h/2001h parameter abnormal
Cause:
The total number of parameters changes, which generally occurs after software updates.
The actual parameter values of group 2000 or 2001 exceed the limit, which generally occurs after software
updates.
Probable Cause ConrmingMethod Corrective Action
1. Instantaneous power failure
occurs during parameter storage.
Checkwhetherinstantaneouspower
failure occurs during parameter
storage.
Set drive model (2001-0Bh)
incorrectly, and power on the system,
then correctly set the drive model
and power on the system again.
2. Instantaneous power failure
occurs during serial encoder
motor parameter writing.
Checkwhetherinstantaneouspower
failure occurs during serial encoder
motor parameter writing.
Write the parameters of serial
encoder motor by using Inovance
commissioning software.
3. The software is upgraded.
Checkwhetherthesoftwareis
upgraded.
Set drive model (2001-0Bh)
incorrectly, and power on the system,
then correctly set the drive model
and power on the system again.
4. The servo drive is faulty.
If the fault persists after the servo
drive is powered off and on again,
and step 1 and 2 are repeated for
several times, it indicates that the
servo drive is faulty.
Replace the servo drive.