Rockwell Automation 442L SC300 Safety Sensor User Manual User Manual

Page 34

Rockwell Automation Publication 10000202762 Ver 00 - January 2012

Chapter 5

Electrical installation

Principle of operation (Figure 24 and 25)

The only difference between Figure 24 and 25 are the safety relay modules are different.
The figures are both wired for the same overall functionality.

When the light path on the SC300 is clear and the input conditions on the MSR127 or
GSR SI are valid, the system is ready for switch on and waits for an input signal/switch on
signal. The system’s corresponding logic path is enabled by pressing and releasing the
related restart button. The related output on the MSR127 or GSR SI carry power. If the
input conditions are no longer met, then the related outputs on the MSR127 or GSR SI
shut down.

Figure 26 - SC300 safety camera configured for manual restart, EDM and external teach
connected to an MSR127TP safety relay module with automatic restart

Principle of operation

When the light path on the SC300 safety camera is clear and the input conditions on the
MSR127TP are valid, the system is ready for switch on and waits for an input signal/
switch on signal. The system’s corresponding logic path is enabled by pressing and
releasing the related restart switch. The related outputs of the MSR127TP carry power. If
the input conditions are no longer met, the related outputs of the MSR127TP open
interrupting the power.

S11

S21

S12

S22

S52

S34

MSR127 TP

PWR

CH1

CH2

Teach

Camera Pigtail

889D-F8AB-X

Wht

Yel

Blu

Red

Gry

Brn

Grn

Pnk

L1 L2 L3

Wht 1 Reset

Color Pin Signal

Brn 2 +24V

Grn 3 Teach

Yel 4 EDM
Gry 5 OSSD 1

Pnk 6 OSSD 2
Blu 7 0V DC

Red 8 FE

24V DC

0V DC

Restart