12-9
12-3 Errors
OMNUC G5-series AC Servomotors and Servo Drives User’s Manual (with Built-in EtherCAT Communications)
  12
Troubleshooting and Maintenance
34 0
Overrun Limit Error
√√ −
36 0 to 2
Object Error
−− −
37 0 to 2
Object Corrupted
−− −
38
0 Drive Prohibition Input Error 1 −√ −
1 Drive Prohibition Input Error 2 −√ −
40 0
Absolute Encoder System Down 
Error 
√√ 
*3
−
41 0
Absolute Encoder Counter 
Overflow Error 
√− −
42 0
Absolute Encoder Overspeed 
Error 
√√ 
*3
−
43 0
Encoder Initialization Error
√− −
44 0
Absolute Encoder 1-rotation 
Counter Error 
√− −
45 0
Absolute Encoder Multi-rotation 
Counter Error 
√− −
47 0
Absolute Encoder Status Error 
√− −
48 0 Encoder Phase-Z Error √− −
49 0 Encoder CS Signal Error √− −
50
0 External Encoder Connection Error √− −
1
External Encoder Communications Data 
Error
√− −
51
0 External Encoder Status Error 0 √− −
1 External Encoder Status Error 1 √− −
2 External Encoder Status Error 2 √− −
3 External Encoder Status Error 3 √− −
4 External Encoder Status Error 4 √− −
5 External Encoder Status Error 5 √− −
55
0 Phase-A Connection Error √− −
1 Phase-B Connection Error √− −
2 Phase-Z Connection Error √− −
83
1 EtherCAT State Change Error √√ −
2 EtherCAT Illegal State Change Error √√ −
3 Communications Synchronization Error √√ −
4 Synchronization Error √√ −
5 Sync Manager WDT Error √√ −
87 0 Immediate Stop Input Error −√ −
Error No. (hex)
Error detection function
Attribute
Main Sub History
Can be 
reset
Immediate 
stop
*1
ABS
ABS
ABS
ABS
ABS
ABS