Siemens SIMODRIVE 611 universal Function Manual page 383

01.99
! not 611ue !
Standstill Using the standstill monitoring function, it can be detected when the
monitoring axis leaves the target position (under load, for hanging axes, etc.).
Mode of operation The standstill monitoring time (P0325) is started after a motion block
has been completed (position reference value = target reference va-
lue).
After the delay time has expired, it is cyclically monitored as to whether
the position actual value remains within the defined standstill window
(P0326).
Position
Positioning window P0321
value
x
Target
position
Position
reference
value
Standstill monitoring time P0325
Positioning monitoring time
Fig. 6-17 Standstill and positioning monitoring
Fault When the standstill monitoring function responds, the drive is braked
down to standstill with the deceleration level set in P0104 (maximum
deceleration) and fault 135 (standstill monitoring) is signaled.
A changeover is made into the tracking mode.
Switching–off The standstill monitoring function is disabled, if
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E Siemens AG 2005 All Rights Reserved
SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
6.2 Positioning mode (P0700 = 3, from SW 2.1)
Single evaluation for the
positioning monitoring function
Position
actual
value
P0320
a new traversing block is started
Tracking mode is selected
The standstill window has the value zero (P0326 = 0)
6 Description of the Functions
Standstill window
P0326
From here, cyclic evaluation
of the standstill monitoring
t
6
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