Rockwell Automation 440R MSR300 Modular Safety Control System User Manual
Page 30
 
MSR300 Safety System Manual
 
Rockwell Automation 
MSR300 Manual.doc
Pg 30 of 85
LED indication of Output Group assignment: 
 
The Input Module has three LEDs for indicating its assigned Output Group Module. 
 
The Input Module has two additional LEDs that give diagnostic information as follows: 
 
States Function
LED Input 1
LED Input 2
1
Input 1 valid
Continuous green
---
2
Input 1 invalid
Continuous red
---
3
Input 1 switch faulty
Flashes red
---
4
Input 2 valid
---
Continuous green
5
Input 2 invalid
---
Continuous red
6
Input 2 switch faulty
---
Flashes red
7 Detected
configuration
does not match that 
stored in the 
EEPROM 
Input 1 LED flashes
red alternately with
Input 2 LED
Input 2 LED flashes
red alternately with
Input 1 LED
8 Redundant
rotary
switches are not set 
identically. 
Input 1 LED flashes
red alternate with
Input 2 LED
Input 2 LED flashes
red alternate with
Input 1 LED
 
4.2.3 Connections For Input Functions 
 
4.2.3.1 1-Channel 
Emergency
Stop
 
Switch setting: 1 
 
Input 1
Input 2
Solid-state auxiliary 
output: Input 1 
Solid-state auxiliary 
output: Input 2 
S11-S12: N/C
S11-S42: N/C
S32
S62
 
 
 
 
 
 
 
 
 
 
 
Switches with forced driven contacts and additional failure exclusions 
related e.g. to wiring and crossfaults required to achieve safety cat 4 in 
this application (e.g. installation and wiring in IP54 cabinet)