Technical data
Leuze electronic
MSI-MD-FBX
42
Tab. 13.3:
Technical data of the electronic safety-related switching outputs (OSSDs)
Safety-related PNP transistor outputs (short-
circuit monitored, cross-circuit monitored)
Minimum
Typical
Maximum
Switching voltage high active (U
v
- 1.5V)
18 V
24 V
27 V
Switching voltage low
0 V
+2.5 V
Switching current
300 mA
380 mA
Residual current
<2 µA
200 µA
Load capacity
0.3 µF
Load inductivity
2 H
Permissible wire resistance for load
<200 Ω
Note the additional restrictions due to cable length and
load current.
Permissible wire cross section
0.25 mm
2
Test pulse width
60 μs
340 μs
Test pulse distance
(5 ms)
60 ms
OSSD restart delay time
100 ms
Tab. 13.4:
Status signals and control signals
Signal
Input/Output
Values
Reset
Input
24 V, 15 mA
ReadyForReset
Output
24 V, 80 mA
ML
Output
24 V, 80 mA
Input and output currents
MS1 … MS4
Input
24 V, max. 250 mA
Sum of the input/output currents: < 1 A
Permissible leakage current for control outputs: max. 0.7 mA
NOTICE
The safety-related transistor outputs perform the spark extinction. With transistor outputs, it is
therefore neither necessary nor permitted to use the spark extinction circuits recommended by
contactor or valve manufacturers (RC elements, varistors or recovery diodes), since these con-
siderably extend the decay times of inductive switching elements.