Siemens SINUMERIK 840D sl Function Manual page 684

Detailed description
2.7 Program operation mode
Stop event
• A stop event can be triggered by the following
Event
VDI interface signals from the PLC
Alarms with NOREADY response
Stop key
Read-in disable
Single block
Note
Some NCK events are stopped for a short time, in order to perform a switching operation,
and restarted immediately. These include e.g., the ASUB that stops the contour briefly in
order to then start the ASUB program immediately. These events are also allowed in the
stop delay area, however they are pushed back to its end and are thus considered "soft stop
events".
Boundary conditions
The following exceptions apply while a stop delay area is being processed:
• A change in the feed is ignored while in the stop delay area. A feed disable is thus not
• None of the main run axes, such as command axes and positioning axes, which are
• Part program command G4 is permitted in the stop delay area. Other part program
• If a STOP DELAY AREA with an override of 0% is entered, the STOP DELAY AREA will
Table 2-10 Summary of NCK events, which stop at least for short time
NCK events
Reset and mode group RESET
PROG_END
Interrupt
DELDISTOGO_SYNC
PROGRESETREPEAT
PROGCANCELSUB
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effective until the program area has been exited, and is stopped.
traversed with POSA, is stopped.
commands that cause a stop in the meantime (e.g., WAITM) are not permitted and trigger
"Alarm 16954".
not be accepted!
Response
Classification
"Hard" stop event
"Hard" stop event
"Soft" stop event
"Soft" stop event
"Soft" stop event
Stop criteria
immediate IS: DB21, ... DBX7.7 and DB11, ... DBX20.7
Alarm 16954 NC prog.: M30
delayed IS: "FC-9" and ASUP DB10, ... DBB1
immediate IS: "Delete distance-to-go" DB21, ... DBX6.2 and axial
delayed IS: "Clear number of subprogram passes" DB21, ...
DBX6.3
delayed IS: "Program level abort" DB21, ... DBX6.4
Basic logic functions: Mode group, channel, program operation, reset response (K1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0