Siemens A39801 fault code meaning
Siemens / A39801
Series: G210, G210X, G220
IIoT: Heartbeat signal missing
converter
Meaning: %2 Component: Control unit (CU) Reaction: None Acknowledgment: None Cause: An error occurred in DRIVE-CLiQ communication between the converter and the associated option module IIoT. Fault cause: 10 (= 0A hexadecimal): The heartbeat signal bit was not set in the received telegram. Note on the message value: Details are provided in the message value (r0949/r2124) as follows: 0000yyxx hexadecimal: yy = component number, xx = fault cause
Possible causes
Source: SINAMICS G210 converter P1367; SINAMICS G210X converter P1069; SINAMICS G220 converter P1590