Festo Электромотор MTR-DCI - Manual (Page 172)

5. Commissioning
5-74
Festo P.BE-MTR-DCI-DN-EN en 1209a
5.6.6 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 the
drive is moved out of the standstill position window by
external forces or other influences for a minimum defined
time, bit SPOS.B6 is set.
As soon as the drive is back in the standstill position window
for the standstill monitoring time, bit SPOS.B6 is reset.
1
Target position
2
Actual position
3
Standstill monitoring
(SPOS.B6)
4
Motion Complete
(SPOS.B2)
5
Standstill position
window
6
Target position
window
7
Settling / Adjustment
time (position
window time)
8
Standstill monitoring
time
1
0
1
0
1
2
3
4
5 6
7
8 8
Fig. 5/9: Standstill monitoring
Standstill monitoring cannot be explicitly switched on or off. It
becomes inactive when the standstill position window is set
to the value “0”.