Siemens SIRIUS 3RA2712 Equipment Manual page 69

This fault is acknowledged automatically after the fault has been corrected and the output
2)
deactivated.
Note
When using the local input Y1-Y2, the following special cases must be observed.
The following applies to all function modules:
The bit combination of inputs D2, D1, D0 = "111" can be generated for a short time if the
switching contact at a local input Y1‑Y2 is open (e.g. end position reached) and the position of
the contactor contacts is still signaling "Motor ON". Before further processing the bit
combination of inputs D2, D1, D0 = "111" as status message "contactor welded", it is necessary
to allow a delay time (to allow for the contactor dropout time) to elapse.
The following also applies to the function module for reversing starting:
The bit combination of the inputs D2, D1, D0 = "111" can be generated on moving in the opposite
direction when exiting an end position. To move out, output D0 = "1" or output D1 ="1" must be
set, depending on the requested direction of rotation. The possible bit combination of inputs D2,
D1, D0 = "111" in this case cannot be evaluated as a "contactor welded" status.
Normally, the end position is left again after a short time and the bit combination of the inputs
D2, D1, D0 = "011" is generated.
If both D1, D0 = "00" outputs are reset and the bit combination of inputs D2, D1, D0 = "111" is
still pending after a delay time has elapsed (to allow for the contactor dropout time), the
"contactor welded" status is signaled.
AS-i peripheral faults
The function modules for AS‑Interface do not use the AS‑i peripheral fault bit.
The peripheral fault bit defaults to "0".
SIRIUS 3RA2712 function modules for AS-Interface
Equipment Manual, 11/2022, A8E96801707001A/RS-AD/006
Diagnostics
12.2 Diagnosis via AS-Interface
69