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Err20
Check if the encoder model is matched
Check if the encoder cable connection is wrong
Check if the encoder installation is wrong
Select rotary
transformer
Remove the
connection fault
Re-install encoder
correctly
PG Fault
No
Yes
Yes
If it is normal after replacing the PG card
PG card fault
Ask for technical support
Yes
Yes
No
No
Fig.9-17 PG Fault (ERR20)
Fig. 9-18 Data Overflow (ERR21)
Err22(Reserved)