Allen-Bradley 440R-GL2S2P - Delayed Unlock with Auto Reset Example

Rockwell Automation Publication 440R-UM012E-EN-P - November 2018 49
Example Operational Sequence Diagrams Chapter 9
Delayed Unlock with Auto
Reset Example
This example can be used for Logic setting 5…8 when configuration is started
from 0.
Example Schematic
In this example, we have a GLP safety relay with an EM expansion module.
This arrangement operates similar to the Guardmaster CU2 relay; the outputs
turn ON when the motion is below the threshold set by the SLS1 rotary
switch.
Figure 42 - Schematic for Delayed Unlock with Auto Reset
Green - Locked
Red - Unlocked
+24V DC
24V DC Com
Brown Red Yellow
White
Blue
Grey
Green
Pink
LightLatch
440G-LZS21SPRA
Gate
Unlocked
Status
to PLC
A1
L11
X32
L12 14 34 4424
13 33 4323
A2
EM
440R-EM4R2
K3 K4
Brown
Black Black
Blue
Blue
Proximity
Sensors
871TM-N10NP12-D4
889D-F4AC-2
LOGIC SLS1
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
SLS2/TIME
0
1
2
3
4
5
6
7
8
9
GLP
440R-GL2S2P
A2
S12 S22
L11
L12
L6151
P12 P22
A1
X14 X24
S44S54
AP
Y32
K2K1 K6K5
K7
K8