10
Operating instructions
Safety light curtain / safety light grid
SLC 220
SLG 220
EN
4. Electrical connection
4.1 Wiring example default
K1
K2
S2
Erdung
S1
kn1
kn2
E 1
2
7
2
3
4
7
1
1
6
5
6
5
3
4
Special cable for
cascading
Extension by master
and slave
Basic system:
Default
S1 only for external test
Optional function:
Use input only for contactor
control - activation through
NSR-0700
If the function is not activated,
do not wire the input.
Cont
ac
tor contr
ol (gr
een)
Test input (y
ellow)
Rest
ar
t int
er
lock (whit
e)
RS485(A) (pink)
RS485(B) (gr
ey)
+24V (br
own)
0V (blue)
RS485(A) (pink)
RS485(B) (gr
ey)
Signal qualit
y (whit
e)
+24V (br
own)
0V (blue)
OSSD2 (y
ellow)
OSSD1 (gr
een)
Earth connection
Restart interlock active: this connection is omitted (connect S2)
Restart interlock inactive: make connection (S2 is omitted)
Legend
K1, K2:
Relay for processing the switching outputs OSSD
1,OSSD 2
kn1, kn2:
Auxiliary contacts of the last switching relay for contac-
tor control (optional)
Signals at input EDM (pin 8), only to be connected
when the function is activated.
S1:
Command device for external test (optional)
S2:
Command device for restart interlock enabling
E1:
Power supply 24 VDC ± 10%
RS 485 (A)/(B): These connections between the transmitter and the
receiver are required for the operation
