Muting, RLY3-OSSD2 safety relay, with SP2 system plug
E255607/00/2019-11-07
r
A1
A2
n.c.
0 V Out
+24 V Out
ADO
n.c.
MUT2
0 V Out
+24 V Out
n.c.
n.c.
5
4
2
1
3
MUT1
0 V Out
+24 V Out
n.c.
n.c.
(Reset)
(Override)
(Reset required)
(Muting)
Out2
0 V DC
+24 V DC
Out1
Com2
5
4
2
1
3
5
4
2
1
3
5
4
2
1
3
Muting connector
+24 V Out
In1
0 V Out
S
ys
tem connec
tion
Ext
ension connec
tion
In2
ADO
+24 V DC
deTem4 AP SP2
A1
A2
1
2
3
4
5
2
1
3
5
6
4
7
8
r
RES/OVR
ADO
OSSD1
OSSD2
EDM
0 V DC
n.c.
s
F2
F1
H1
H2
+24 V DC
L +
L –
0 V DC
K2
K1
R1
Y1
Y2
24
A2
14
S1
I1
I2
23
A1
13
RLY3-OSSD2
k2
k1
S1
Q
–
+
Q
–
+
k2
z
k1
k2
k1
z
x
y
x
1)
y
S2
2) PELV
F0
Figure 27: Connection diagram: Muting, RLY3-OSSD2 safety relay, with SP2 system plug
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 with an SP2 system
plug to a RLY3-OSSD2 safety relay. Muting with 2 photoelectric retro-reflective sen‐
sors (dark-switching). Operating mode: with restart interlock and external device
monitoring implemented in RLY3-OSSD2.
•
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. Contactors K1 and K2 are switched off.
•
Muting and override
Muting starts when the light path is clear and valid muting input conditions apply.
Muting lamp H1 signals the muting status. If a fault occurs when the light path is
interrupted and at least one muting sensor is active, the protective device must be
in the override status. Pressing key-operated pushbutton S2 (pressing and releas‐
ing) initiates the override status.
PROJECT PLANNING
4
8024782/2019-11-19 | SICK
O P E R A T I N G I N S T R U C T I O N S | deTem4 A/P
45
Subject to change without notice