Siemens A01944 fault code meaning
Siemens / A01944
Series: G120-CU250S-2
PB/PN sign-of-life synchronization not achieved
converter
Meaning: The bus is in the data exchange state (Data Exchange), and isochronous operation has been selected via the configuration telegram, but synchronization with the master sign-of-life (STW2.12 ... STW2.15) is not yet possible because the sign-of-life changes outside the configured time frame Tmapc.
Possible causes
Source: SINAMICS G120, Control Unit CU250S-2 P954
Series: G130-G150, S120-S150
PB/PN: Sign-of-life synchronization not achieved
converter
Meaning: The bus is in the data exchange state (Data Exchange), and isochronous operation has been selected via the configuration telegram, but synchronization with the master sign-of-life (STW2.12 ... STW2.15) is not yet possible because the sign-of-life changes outside the configured time frame Tmapc.
Possible causes
Source: SINAMICS G130_G150 P1558; SINAMICS S120_S150 P2667
Series: G200
PN: Sign-of-life synchronization not achieved
converter
Meaning: The bus is in the data exchange state (Data Exchange), and isochronous synchronization has been selected via the configuration telegram, but synchronization according to the controller sign of life (STW2.12 ... STW2.15) could not be performed because the sign of life changes at a different interval from the time grid set in Tmapc.
Possible causes
Source: SINAMICS G200 Basic converter P560
Series: G210
PN: Heartbeat signal synchronization not reached
converter
Meaning:
Possible causes
Source: SINAMICS G210 Converter P1077
Series: G210X, G220, S220
PN: Heartbeat signal synchronization not reached
converter
Meaning: The bus is in the data exchange state (Data Exchange), and isochronous synchronization has been selected via the telegram setting. However, synchronization with the controller heartbeat signal (STW2.12 ... STW2.15) could not be performed because the heartbeat signal changes at a different interval from that configured in time grid Tmapc.
Possible causes
Source: SINAMICS G210X converter P940; SINAMICS G220 converter P1284; SINAMICS S220 converter P2194
Series: S110
PB/PN sign-of-life synchronization not achieved
servo drive
Meaning: The bus is in the data exchange state (Data Exchange), and isochronous synchronization is selected via the configuration telegram, but synchronization with the master sign of life (STW2.12 ... STW2.15) cannot yet be performed because the sign of life changes outside the configured time frame Tmapc.
Possible causes
Source: SINAMICS S110 P991
Series: S200, S210
PN: Sign-of-life synchronization not achieved
servo drive
Meaning: The bus is in the data exchange state (Data Exchange), and isochronous synchronization has been selected via the configuration telegram, but synchronization according to the controller sign of life (STW2.12 ... STW2.15) could not be performed because the sign of life changes at a different interval from the time grid set in Tmapc.
Possible causes
Source: SINAMICS S200 Compact_SIMOTICS S-1FL2 and S-1FL1 P475; SINAMICS S210_SIMOTICS S-1FK2 and S-1FT2 P1312