Siemens SINUMERIK Series Function Manual page 334

K5: Mode groups, channels, axis interchange
5.4 Axis/spindle replacement
The following states of a Spindle in speed mode are checked:
● Spindle mode: Speed mode
● Spindle speed S
● Direction of rotation M3, M4
● Gear stage M40, M41, M42, M43, M44, M45
● Master spindle at constant cutting rate.
In some instances, forced reorganization may be possible. Reorganization of the following
axes is forced in any case.
Activation
Replacement without preprocessing and checking of the current states is activated with
machine data MD10722 $MN_AXCHANGE_MASK, Bit 2=1.
Example
Activating an axis replacement without a preprocessing stop
N010 M4 S1000
N011 G4 F2
N020 M5
N021 SPOS=0
N022 POS[B]=1
N023 WAITP(B)
N030 X1 F10
N031 X100 F500
N032 X200
N040 M3 S500
N041 G4 F2
N050 M5
N099 M30
If the spindle (axis B) is traversed immediately after block N023 as a PLC axis to 180° and
back to 1°, and then again to the neutral axis, block N040 does not trigger a preprocessing
stop nor a reorganization.
Special case: Axis replacement with preprocessing stop
Without a GET or GETD instruction having previously occurred in the main run, the spindle
or the axis can be made available again by RELEASE (axis) or WAITP (axis), for example. A
subsequent GET leads to a GET with a preprocessing stop.
334
; Axis b becomes the neutral axis
Function Manual, 03/2013, 6FC5397-1BP40-3BA1
Extended Functions