Siemens A01981 fault code meaning
Siemens / A01981
Series: G130-G150, S120-S150
PN: Maximum number of controllers exceeded
converter
Meaning: The controller attempted to establish a connection with the drive, but the maximum allowed number of PROFINET connections was exceeded. The alarm will clear automatically after approximately 30 seconds.
Possible causes
Source: SINAMICS G130_G150 P1561; SINAMICS S120_S150 P2671
Series: G200, G210, G210X, G220, S220
PN: Maximum number of controllers exceeded
converter
Meaning: The controller attempted to establish a connection with the drive, but the maximum allowed number of PROFINET connections was exceeded. The alarm will clear automatically after approximately 30 seconds.
Possible causes
Source: SINAMICS G200 converter P687; SINAMICS G210 converter P1080; SINAMICS G210X converter P942; SINAMICS G220 converter P1286; SINAMICS S220 converter P2198
Series: S200
PN: Maximum number of controllers exceeded
servo drive
Meaning: The controller attempted to establish a connection with the drive, but the maximum allowed number of PROFINET connections was exceeded. The alarm will clear automatically after approximately 30 seconds.
Possible causes
Source: SINAMICS S200 PROFINET_SIMOTICS S-1FL2 P502
Series: S210
PN: Maximum number of controllers exceeded
servo drive
Meaning: The controller attempted to establish a connection with the drive, but the maximum allowed number of PROFINET connections was exceeded. The alarm will clear automatically after approximately 30 seconds.
Possible causes
Source: SINAMICS S210_SIMOTICS S-1FK2 and S-1FT2 P1313