Rockwell Automation Publication 440R-RM003A-EN-P - July 2021 31
Chapter 3 MSR300 Safety Relay
One N.C. and One N.O. Input
The dual-channel input has a definite simultaneity when the input for MSR300
safety relay is sourced from S11. When the dual-channel input is sourced from
S21, the dual-channel inputs must change state within 3 seconds. The Sipha™ 2
controller supports the 3-second requirement.
Two-hand Control Input
For simple applications, the MSR300 safety relay can be replaced with the
MSR125 safety relay. A typical example is shown in the following schematic.
For more complex applications, the CR30 can couple two-hand control with
other safety-related functions. See the Guardmaster® Configurable Safety
Relay user manual, 440C-UM001
, for more details.
41
42
13
14 24 34
23 33
K1
K2
S31S11 S41
S51
S34
Y10 Y11 Y12 Y13
A1S21
+24V DC
A2
K1
K2
24V Com
MSR310P
440R-W23219
K1 K2
K1 K2
Y41Y40 Y42
Y32Y31 Y33
MSR330P
440R-W23221
MSR320P
440R-W23218
S12
S42 S52 S62
S22 S32
A1
A2
1
4X113
23
X2
14
23
24
31
32
SIPHA 2
440N-S32021
A1
A2
14 X113
23
X2
14
23
24
31
32
SIPHA 2
440N-S32021
R
+
_
+
_
Reset
Group 1
Group 1
Function 5
Door
shown
closed
open
closed
open
closed
Reset
Door
shown
closed
Open Open
41
42
13
14 24 34
23 33
S31S11 S41
S51
S34
Y10 Y11 Y12 Y13
A1S21
+24V DC
24V Com
A2
K1
K2
MSR310P
440R-W23219
K1 K2
K1 K2
S1
S2
S1
S2
Y41Y40 Y42
Y32Y31 Y33
MSR330P
440R-W23221
MSR320P
440R-W23218
S12
S42 S52 S62
S22 S32
K1
K2
S11
S21
S12
S22
S13
S23 Y2
A1 13 Y1
A2 14
23
24
MSR125
440R-D23171