U-ONE
®
-SAFETY-LWL
Configuration manual
USL_KonfigManual-en_R3
19
4.2 Preset
Required modules
USL(H) 42 Basic Device
UO-SCU Module
Please see the specific module operating and assembly manuals for further
important information.
A preset will set the current position of the preset
position which can be configured in the UO-SCU.
A low level on the status output (approx. 1s)
acknowledges a valid preset process.
The
time T1
can be set to 20 ms … 200 ms or to
200 ms … 2000 ms (for default settings see
section: 6.7).
The behaviour of the reset and preset inputs can be
changed using “Preset/Reset high active” from low active
to high active.
NOTE!
If test pulses are used on the inputs, they may be a max. of ¼ the min.
duration of T1 (5 ms to 50 ms).
The digital reset and preset inputs must be activated before use.
NOTE!
A preset can only be set “on the fly” if a risk analysis has
indicated that the
application is suitable for this purpose.
A preset will not influence the position value for the bus module. This
position value can only be changed using the bus interface.
Fig. 4-4: Preset input
Fig. 4-6: Digital inputs
Fig. 4-5: Preset
