Alarms - Siemens SINUMERIK 840D Function Manual

F1: Travel to fixed stop
3.2 Detailed description
Program code
R100=$AA_IM[X1]
IF R100 ...
...
GOTOF PROG_END
FXS_ERROR:
CASE($VA_FXS_INFO[X1]) OF 0 GOTOF LABEL_0 OF 1 GOTOF LABEL_1 ...
LABEL_0: ...
GOTOF CASE_END
LABEL_1: ...
GOTOF CASE_END
...
CASE_END:
...
PROG_END: M30
3.2.8

Alarms

Alarm 20091 "Fixed stop not reached"
If the fixed stop position is not reached during travel to fixed stop, alarm 20091 "Fixed stop not
reached" is displayed and a block change executed.
Alarm 20092 "Travel to fixed stop is still active"
If there is a travel request or renewed function selection for the axis after the fixed stop has been
reached, alarm 20092 "Travel to fixed stop is still active" is displayed.
Alarm 20093 "Standstill monitoring at fixed stop has triggered"
If an axis has reached the fixed stop and is then moved out of this position by more than the
value specified in the setting data
SD43520 FIXED_STOP_WINDOW (fixed stop monitoring window)
alarm 20093 "Standstill monitoring at fixed stop has triggered" is displayed, travel to fixed stop
for this axis is deselected and the following system variable set:
$AA_FXS[x] = 2
Alarm 20094 "Function has been aborted"
The travel to fixed stop is aborted if the clamping torque can no longer be applied due to the
cancellation of the pulse enable, or the requested acknowledgement signal at the NC/PLC
interface has been reset:
● Acknowledgement signal required: MD37060 $MA_FIXED _STOP_ACKN_MASK, bit 0 = 1
● Acknowledgement signal: DB31, ... DBX3.1 == 0 (enable travel to fixed stop)
108
Comment
; THEN (normal case)
; Evaluation of the
; actual position
; ELSE (error case)
; Error handling
; ENDIF end of program
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA