A3: Axis Monitoring, Protection Zones
2.2 Axis monitoring
Basic Functions
92 Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Figure 2-6 Speed setpoint limitation
Speed-setpoint monitoring delay
To prevent an error reaction from occurring in every speed-limitation instance, a delay time can be configured:
MD36220 $MA_CTRLOUT_LIMIT_TIME (Speed-setpoint monitoring delay)
Only if the speed limitation is required for longer than the configured time does the corresponding error reaction
occur.
Effectivity
The speed-setpoint monitoring is only active for closed-loop position-controlled axes and cannot be deactivated.
Fault
If the configured delay time is exceeded, the following alarm appears:
25060 "Axis <Axis identifier> Speed-setpoint monitoring"
The affected axis is stopped via the configured braking ramp in follow-up mode:
MD36610 $MA_AX_EMERGENCY_STOP_TIME
(Maximum time for braking ramp when an error occurs)
Note
Upon reaching the speed-setpoint monitoring, the position feedback loop of the axis
becomes non-linear due to the limitation. Contour errors result if the axis is involved in
generating the contour.
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