Siemens SINUMERIK 840D sl Function Manual page 87

Requirements for the PLC user program
● The axis is always removed from the clamp when a travel command is pending.
● The following is always valid for the axis:
DB31, ... DBX2.1 (controller enable) = 0: Axis is clamped.
DB31, ... DBX2.1 (controller enable) = 1: Axis is not clamped.
The following figure shows an example of the interface signals and states upon releasing of
the axis clamp:
Figure 3-2
The part program blocks N310 and N410 refer to the following programming example:
Program code
N100 G0 X0 Y0 Z0 A0 G90 G54 F500
N101 G641 ADIS=.1 ADISPOS=5
N210 G1 X10
N220 G1 X5 Y20
N310 G0 Z50
N410 G0 A90
N510 G0 X100
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Release axis clamp if MD36052 $MA_STOP_ON_CLAMPING = 'H01'
A3: Axis Monitoring, Protection Zones
3.2 Axis monitoring functions
Comment
; Machining
; Retract
; Turn rotary table
; Approach
87