Ossd Diagnostic Checks; External Resistor For Ossd Outputs - Leuze electronic LBK SBV Original Operating Instructions

4 Get to know LBK SBV System
For details, see Technical references on page 92.
4.2.10

OSSD diagnostic checks

Per default, the OSSD Diagnostic check (e.g. for short circuits) is deactivated. This check can be activated
through the LBK Designer application (Settings > Digital Input-Output).
If activated, the controller will monitor:
Short-circuit between OSSDs
l
24V short-circuit (only trips on demand, i.e. when the safety function is activated on the transition from 24
l
V to GND)
Open circuit
l
4.2.11

External resistor for OSSD outputs

To guarantee the correct connection between the OSSDs of the controller and an external device, it may be
necessary to add an external resistor.
If the pulse width set (OSSD Pulse width) is 300 μs, it is strongly recommended to add an external resistor
to guarantee the discharge time of the capacitive load. If it is set at 2 ms, an external resistance must be
added if the resistor of the external load is greater than the maximum resistive load allowed (see Technical
data on page 92).
Leuze electronic GmbH + Co. KG Sensor LBK SBV 26