Rockwell Automation 442L SC300 Safety Sensor User Manual - Manual (Page 31)

Rockwell Automation Publication 10000202762 Ver 00 - January 2012 29
Chapter 5 Electrical installation
Figure 21 - Connecting the SC300 without external device monitoring (EDM), without internal
restart interlock and without external key-operated pushbutton for teach-in
With external device monitoring (EDM), with internal restart interlock and with
external key-operated pushbutton for teach-in
Figure 22 - Connecting the SC300 with external device monitoring (EDM), with internal restart
interlock and with external key-operated pushbutton for teach-in
Reset button/restart
When using the SC300 with internal restart interlock (see the “Restart interlock” section
on page 11), the operator must press the reset button prior to restart.
The configuration of the internal restart interlock is described on page 11.
+24V
0V
1
2
3
4
5
6
7
8
Internal
teach-in key
RESTART
+24V
TEACH/SYNC
EDM
OSSD1
OSSD2
GND
FE
K1 K2
+24V
0V
1
2
3
4
5
6
7
8
Internal
teach-in
key
RESTART
+24V
TEACH/SYNC
EDM
OSSD1
OSSD2
Key-operated
pushbutton for
teach-in
GND
FE
K1 K2
k1
k2
Select the correct installation site for the reset button.
Install the reset button outside the hazardous area such that it
cannot be operated from inside the hazardous area. When
operating the reset button, the operator must have full visual
command of the hazardous area.
Perform a teach-in procedure after any change to the
connection.
The SC300 activates the internal restart interlock only after the
next teach-in procedure. Otherwise the system will not switch to
green.
ATTENTION