Siemens SIMODRIVE POSMO A User Manual

5
5.5 SIMODRIVE POSMO A functions
5-181
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SIMODRIVE POSMO A User Manual (POS1) – 08/2013 Edition
5.5.9 Zero speed monitoring
Using the standstill monitoring function, it can be detected when the
axis leaves the target position (under load, for hanging axes, etc.).
The monitoring time (P13) is started after the motion block has been
completed (position reference value = target setpoint).
After the monitoring time (P13) has expired, it is cyclically monitored as
to whether the actual axis position remains within the standstill range
(P14) around the target position.
Objective:
Continually check whether the position of the axis is also maintained.
t
Target
position
Position
value
x
Target range (P11)
Position
reference
value
Position
actual
value
Standstill range
(P14)
Monitoring time (P13)
From here, cyclic evaluation of the
standstill monitoring
From here, changeover to holding
and standstill controller
Fig. 5-15 Zero speed monitoring
When the standstill monitoring responds, an appropriate fault is signaled.
When the next block is started, the standstill monitoring is disabled.
P11 Target range
P13 Monitoring time
P14 Standstill range
Description
Mode of operation
Fault
Switching–off
Parameter
(refer to Chapter
5.6.2)
5 Description of the Functions
02.9902.0010.07

Siemens SIMODRIVE POSMO A Specifications

General

Brand	Siemens
Model	SIMODRIVE POSMO A
Category	Engine
Language	English