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Further topics
•
"Cross-circuit monitoring", page 35
•
"Electrical installation", page 60
•
4.4.7
Connection diagrams
5-pin, RLY3-OSSD2 safety relay
deTem4 AP SP1/SP2
1
2
4
3
5
2) PELV
S
ys
te
m conne
c
ti
on
+24 V DC
OSSD1
OSSD2
0 V
n.c.
F2 F1
+24 V DC
0 V DC
K1
K2
E255804/00/2019-11-11
R1
Y1
Y2
24
A2
14
S1
I1
I2
23
A1
13
RLY3-OSSD2
k2
z
k1
k2
k1
z
x
y
x
1)
y
F0
L+
L–
k2
k1
S1
r
s
H2
H1
Figure 24: Connection diagram: 5-pin, RLY3-OSSD2 safety relay
1)
Output circuits: These contacts must be incorporated into the control such that the dan‐
gerous state is brought to an end if the output circuit is open. For categories 4 and 3, they
must be incorporated on dual-channels (x, y paths). Type 2 devices are suitable for use up
to PL c. Single-channel incorporation into the control (z path) is only possible with a single-
channel control and taking the risk analysis into account.
2)
SELV/PELV safety extra-low voltage.
•
Task
Connection of a multiple light beam safety device deTem4 A/P to a RLY3-OSSD2
safety relay. Operating mode: With restart interlock and external device monitoring.
•
Mode of operation
When the light path is clear, the OSSD1 and OSSD2 outputs carry voltage. The sys‐
tem can be switched on when K1 and K2 are in a fault-free de-energized position.
Lamp H2 flashes. The RLY3-OSSD2 is switched on by pressing S1 (pushbutton is
pressed and released). The outputs (contacts 13-14 and 23-24) switch the K1
and K2 contactors on. When the light path is interrupted, the OSSD1 and OSSD2
outputs switch the RLY3-OSSD2 off. Lamp H1 lights up. Contactors K1 and K2 are
switched off. As soon as the light path is clear again, lamp H2 flashes.
4
PROJECT PLANNING
42
O P E R A T I N G I N S T R U C T I O N S | deTem4 A/P
8024782/2019-11-19 | SICK
Subject to change without notice