Siemens SINUMERIK 840D sl Function Manual page 101

stops before the machining quality of the workpiece is assessed using appropriate
synchronized action commands.
Effectiveness
Customized monitoring can be activated in parallel to or as an alternative to standard zero-
mark monitoring, depending on the setting in machine data:
MD36310 $MA_ENC_ZERO_MONITORING
Value
0
> 0
100
If both monitoring functions are active (MD36310 > 0), you can perform cascaded monitoring.
Example:
If a value falls below the threshold specified in MD36310, customized monitoring triggers a
prewarning; standard zero-marking monitoring will only detect a fault if the threshold is
exceeded and will then deactivate automatically.
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Meaning
If only user-specific monitoring is to be implemented, the default zero-mark monitoring
must be deactivated:
MD36310 = 0
and
MD36312 = 0
Customized monitoring and standard zero-mark monitoring operate in parallel.
All encoder monitoring functions are deactivated.
A3: Axis Monitoring, Protection Zones
3.2 Axis monitoring functions
101