Festo Электромотор MTR-DCI - Manual (Page 167)

5. Commissioning
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Festo P.BE-MTR-DCI-PB-EN en 1209a
5.8.7 Standstill monitoring
With standstill monitoring, the system can detect when the
drive leaves the target position window when in standstill
status.
When the target position has been reached and MC has been
signalled in the status word, the drive switches to “standstill”
status; bit SPOS.B6 (standstill monitoring) is reset. If, while in
this status, the drive is moved out of the standstill position
window by external forces or other influences and stays out
for a minimum defined time, bit SPOS.B6 is set.
As soon as the drive has been back in the standstill position
window for the defined standstill monitoring time, bit
SPOS.B6 is reset.
1
Target position
2
Current position
3
Standstill monitoring
(SPOS.B6)
4
Motion complete
(SPOS.B2)
5
Standstill position
window
6
Target position win-
dow
7
Adjustment time (po-
sition window time)
8
Standstill monitoring
time
1
0
1
0
1
2
3
4
5 6
7
8 8
Fig. 5/11: Standstill monitoring
Standstill monitoring cannot be switched on or off explicitly.
It becomes inactive when the standstill position window is set
to the value “0”.