Dimensions, Weight, Response Time - Leuze electronic MLC 520 EX Series Original Operating Instructions

Safety-related PNP transistor outputs (short-circuit
monitored, cross-circuit monitored)
Load inductivity
Permissible wire resistance for load
Permissible wire cross section
Permissible cable length between receiver
and load
Test pulse width
Test pulse distance
OSSD restart delay time after beam interruption
a) In the event of a failure (if the 0V cable is interrupted), each output behaves as a 120 k
stream safety PLC must not detect this as a logical 1 .
b) Note the additional restrictions due to cable length and load current.
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.
14.2

Dimensions, weight, response time

Dimensions, weight and response time are dependent on
• the resolution
• the length
B
R
Figure 14.1: Dimensions of transmitter and receiver
Effective protective field height H
the circles labeled with R.
Leuze electronic
Minimum
(5 ms)
A
H
PFN
goes beyond the dimensions of the optics area to the outer borders of
PFE
MLC 520 EX
Specifications
Typical Maximum
2 H
<200
0.25 mm
2
100 m
60 s 340

60 ms
100 ms

resistance to U
C
R
b)

s

. A down-
v
M12
53