Siemens sinumerik 840D sl Function Manual page 397

6. Formulate trigger condition as static synchronous action(s), e.g.:
4.5.2 NC-controlled reactions
Example using NC-controlled reactions. The important details are specified.
Exercise
The A axis is to operate as the generator drive, while the X axis should retract 10 mm at
maximum speed in the event of a fault, and axes Y and Z should stop after a delay of 100
ms so that the retraction axis has time to cancel the mechanical coupling.
Preconditions
The "Extended stop and retract", "Static synchronous actions" and "ASUB" options must be
available.
Special functions: Axis Couplings and ESR (M3)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0
– dependent on intervention of generator axis:
IDS=01 WHENEVER $AA_ESR_STAT[A]>0 DO $AN_ESR_TRIGGER=1
– and/or dependent on alarms that trigger follow-up mode (bit13=2000H):
IDS=02 WHENEVER ($AC_ALARM_STAT B_AND 'H2000')>0 DO
$AN_ESR_TRIGGER=1
– and also dependent on EG synchronized operation (if, for example, Y is defined as EG
following axis and if the maximum allowed deviation of synchronized operation shall
be 100 mm):
IDS=03 WHENEVER ABS($VA_EG_SYNCDIFF[Y])>0.1 DO $AN_ESR_TRIGGER=1
– or (summarized) dependent on all three trigger preconditions + PLC + input:
IDS=01 WHENEVER ($AA_ESR_STAT[A] > 0) AND
(($AC_ALARM_STAT B_AND 'H2000')> 0) AND
(ABS($VA_EG_SYNCDIFF[Y]) > 0.1) OR
($A_DBB[0] > 0) OR
($A_PBB[0] > 0) DO $AN_ESR_TRIGGER=1
Examples
4.5 ESR
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