Trigger Sources - Siemens SINUMERIK 840D sl Function Manual

Deactivate rapid lift
POLFMASK or POLFMLIN without specifying an axis deactivates rapid lift for all axes activated
in the enable call.
Interactions, POLFMASK/POLFMLIN
The last data entered for a specific axis in one of the two instructions applies. For example:
Program code
N200 POLFLIN(X,Y,Z)
...
N300 POLFMASK(Z)
N500 POLFMLIN(X,Z)
Part program start
The retraction positions (POLF) and axial enable signals (POLFMASK, POLFMLIN) are deleted
when the part program is started. This means that the user must reprogram the retraction
positions and the axial enable signals (POLFMASK, POLFMLIN) in every part program.
9.2.6

Trigger sources

A distinction must be made between the ESR trigger sources on a user-for-user basis by
evaluating system variables. This is the reason that all system variables are available, which
can be read in synchronized actions.
General trigger sources
● Digital inputs of the NCU module or the internal control image of digital outputs that can be
read back: $A_IN, $A_OUT
● Channel status: $AC_STAT
● NC/PLC interface signals
● System variables written from the PLC: $A_DBB, $A_DBW, $A_DBD
It is not recommended to use these system variables, written by the PLC for time-critical
signals, as in this case, the PLC cycle time is included in the total response time.
Nevertheless, it is an appropriate way for the PLC to influence the sequence or release of
the extended stop and retract function. However, linking-in PLC states in such a fashion
does make sense if these are exclusively input from the PLC (e.g. Emergency-Stop, reset
button, stop button)
● Group signals from alarms: $AC_ALARM_STAT
Special functions
Function Manual, 01/2015, 6FC5397-2BP40-5BA2
Description
; Linear retraction motion for X, Y and Z
; Independent retraction for Z
; (no longer any linear interpolation with X and Y)
; Linear retraction motion for X and Z
; The independent retraction of Z, activated with POLFMASK, is
; deleted. The retraction of Y, activated with POLFMLIN, is
; also deleted.
; Only X and Z carry out a retraction movement
R3: Extended stop and retract
9.2 Control-managed ESR - 840D sl only
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