Siemens SINUMERIK 828D Function Manual page 87

Parameter assignment:
MD36052 $MA_STOP_ON_CLAMPING = 'H03' (Special function for clamped axis)
Prerequisites regarding the PLC Application programs
• The axis is removed from the clamp as soon as a travel command is pending.
• The axis may be removed from the clamp even if only during positioning (G0).
The following image shows an example of the interface signals and states upon releasing of the axis clamp:
Figure 2-3 Release axis clamp if MD36052 $MA_STOP_ON_CLAMPING = 'H03'
Automatic stopping for setting of the clamp
If an axis is to be clamped in continuous-path mode, the NC stops the path motion before the next "Non-rapid
traverse block" if the axis has not been clamped by then, i.e. the PLC has set the feedrate override value to zero.
Parameter assignment:
MD36052 $MA_STOP_ON_CLAMPING = 'H04' (Special function for clamped axis)
Prerequisites regarding the PLC Application programs
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
A3: Axis Monitoring, Protection Zones
2.2 Axis monitoring
87