5    TROUBLESHOOTING 
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  OPERATING INSTRUCTIONS  |  AFS60/AFM60 PROFINET  8015078/145N/2019-05-24 |  SICK STEGMANN 
  Subject to change without notice 
5.4.3  Alarm channel 
The AFS60/AFM60 PROFINET transmits the errors and warnings to the control system 
in the so-called alarm channel. The transmission contains the alarm IDs, the necessary 
address information and the so-called channel-related diagnosis. 
Errors are signaled as diagnostic errors and warnings as maintenance prompts: 
Diagnostics during commissioning  
Table 51:  Possible errors in the alarm channel 
 
Maximum frequency exceeded 
Operating temperature exceeded/dropped below 
Low power output from the light source for the optical scanning  (LED) 
Table 52:  Possible warnings in the alarm channel 
5.4.4  Error codes in telegram part G1_XIST2 
In the case of an error, an error code is output in the cyclic process data in the 
telegram part G1_XIST2 (see Table 7 on page 16 and Table 11 on page 18). These 
manufacturer-specific error codes permit detailed error analysis. 
Error of the encoder 
sensor 
Error on the generation of the encoder signal that 
would lead to an invalid position value in 
Gx_XISTx (e.g. error in the electronics, invalid 
sensor signal etc.) 
Command  (e.g. requested via a control word) is 
not supported 
Operating temperature 
exceeded 
Maximum operating temperature exceeded 
Invalid checksum found in the EEPROM  or 
EEPROM  cannot be read 
Minimum operating voltage dropped below. The 
encoder is started again once the minimum 
operating voltage is reached. 
Maximum operating voltage  exceeded 
Table 53:  Error codes in telegram part G1_XIST2