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Chapter 16 Troubleshooting
Classification
of errors
Error
code
Error name Error Operation status at error occurrence
Encoder
errors
1201 OPR data incorrect
• The backup data for absolute position
restoration is illegal.
• The home position return has never been
executed after the system start.
• The home position return is started, but
not completed correctly.
• The servo alarm "Absolute position
erased" (alarm No.: 25) or the servo
warning "Absolute position counter
warning" (warning No.: E3) occurred.
• The servo parameter "Rotation direction
selection/travel direction selection (PA14)"
is changed.
The operation continues.
Absolute
position
1205
SSCNET
communication error
Data received from servo amplifier is in
error.
The operation continues.