Lenze i750 - Page 139

Funconal descripon
Homing done
SHom active
Time-out
SHom available
t
x
t
max
t
0
SHom_Start
SHom_Load
0x2882:002
t
t
t
t
t
0
0
0
0
1
1
1
1
Fig. 24: Sequence of the SHom funcon
Acvaon and sequence of the r
eference run
1.
The homing process is started via the dened input source: 0x2880:001
2.
The superimposed applicaon must start the reference run. The drive independently takes
over the moon control.
3.
The reference run is performed with the set safely limited speed (SLS): 0x2882:003
4.
Within the dened "Timeout" period, the reference signal "SHom_Load" is expected,
which sets the safe reference point "Home Posion" in the absolute posion range:
-
"Timeout" denion: 0x2882:002
-
Source for "SHom_Load": 0x2881:001
-
"Home Posion" reference point: 0x2882:001
5.
Once the reference point is set, the reference run is ended.
6.
The drive changes to normal operaon.
Display of the funcon s
tatus: 0x2882:006
The status is also displayed in the status bits of the safety bus. 4Safe network
interfaces^ 149
Behavior of the funcon in the event of an error
A faulty reference run, e.g. due to a missing signal edge or a violaon of the ming
requirement, triggers STO.
Funconal sa
fety
Safety funcons
Safe homing (SHom)
139