Application And Wiring Examples; Ci Safety Relay (Cat. No. 440R-S13R2) - Rockwell Automation Allen-Bradley Guardmaster DI User Manual

CI Safety Relay
(Cat. No. 440R-S13R2)

Application and Wiring Examples

The application and wiring examples in this chapter show you how to put the
inputs and outputs together to create an operating safety system. These circuit
diagrams are examples; many features are interchangeable between relays.
Publication SAFETY-WD001
diagrams.
In Figure 42, the CI safety relay is monitoring a device (an E-stop push button)
with mechanically operated contacts. The CI safety relay is configured for
monitored manual (MM) reset. The output turns on if the E-stop is released
and the reset push button is pressed and released between 0.25...3 seconds. The
CI safety relay monitors the status of the two output contactors, K1 and K2. If
either fails to close their N.C. contacts, the CI safety relay does not reset. An
auxiliary signal, terminals 41/42, is sent to the PLC when the E-stop is pressed.
Figure 42 - Mechanical Contacts with Monitored Manual Reset
24V DC
K1
K2
Reset
S11 S21 S34 A1
0
RESET
AM
CI
440R-S13R2
S12
S22 A2
24V Com
Figure 43 on page 46
two OSSD outputs. The CI safety relay is set to automatic/manual reset (AM).
The auxiliary signal (terminals 41/41) informs the PLC that the safety system is
OFF or ON. The CI safety relay outputs connect to AC voltage loads. When the
CI safety relay is ON, the PLC can then turn on the K1 and K2 contactors.
Rockwell Automation Publication 440R-UM013F-EN-P - July 2021
provides additional application and wiring
13 23 33 41
MM
L11 14 24 34 42
To PLC
K1 K2
shows a CI safety relay monitoring a light curtain with
9
Chapter
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