Rockwell Automation 440R-S12R2 User Manual

48 Rockwell Automation Publication 440R-UM013F-EN-P - July 2021
Chapter 9 Application and Wiring Examples
Figure 47 - High Capacitive Load
EM Safety Relay
(Cat.No.440R-EM4R2)
The EM safety relay in Figure 48 expands the number of outputs of the DI
safety relay. The single wire safety signal from terminal L11 to L12 instructs the
EM safety relay to turn on and off. The EM safety relay outputs mimic the DI
safety relay outputs. The DI safety relay monitors contactors K1…K6 and the
status of the EM safety relay by sourcing the reset signal from the X32 terminal
on the EM safety relay.
Figure 48 - Expansion of Immediate Safety Outputs
EMD Safety Relay
(Cat.No.440R-EM4R2D)
The EMD safety relay in Figure 49 on page 49 is configured for a 5 second
off-delay. The single wire safety signal from terminals L11 to L12 instructs the
EMD safety relay to turn on and off. When the E-stop is pressed, the CI safety
relay turns off immediately and the EMD safety relay turns off 5 seconds later.
The CI safety relay monitors contactors K1…K6 and the status of the EMD
safety relay by sourcing the reset signal from the X32 terminal on the EMD
safety relay.
In this example, the jumper from B1 to B2 makes the EMD safety relay
retriggerable. If the E-stop is released and the reset is pressed within the
5 second delay time, the outputs of the EMD safety relay do not turn off
because the internal timer is retriggered.
0
1
2
3
4
56
7
8
DIS
440R-D22S2
S32 A1
Y32
S21S11 S22S12 S34
S42
L12 L11
34A2 44
14 24
24V DC
+
OSSD1
OSSD2
-
24V Com
+
OSSD1
OSSD2
-
LOGIC
To PLC
A1
L11
X32
L12 14 34
44
24
13 33 4323
A2
EM
440R-EM4R2
A1 S11 S21 S12S22
S32 L11 Y32L12
13
14S42
23
24
S34
A2
DI
440R-D22R2
0
1
2
3
4
56
7
8
K1
24V DC
24V Com
K2
K6
K5
K3
K4
K1
K2 K3 K4
K5 K6
LOGIC
Reset
To PLC

Rockwell Automation 440R-S12R2 Specifications

General

Brand	Rockwell Automation
Model	440R-S12R2
Category	Relays
Language	English