Allen-Bradley Guardmaster, User Manual

Page: 10 / 100

10 Rockwell Automation Publication 440R-UM013E-EN-P - March 2017
Chapter 1 Overview
Multi-position Switches
Most safety relays are configured by adjusting multi-position switches to set
their functionality.
(1)
The switches are on the front face of the relay so you can
see the set position during, and after, configuration. During the configuration
process, status indicators on the front face of the relay confirm the switch
settings. See Switch Adjustment on page 36 for more information.
Optical Communication Bus
The DI, DIS, EM, EMD, and SI safety relays have an optical communications
bus that delivers status and diagnostics to the catalog number 440R-ENETR
EtherNet/IP module (not shown in Figure 1 on page 9 ) without additional
wiring. See Ethernet Communication on page 59 for more information.
Safety relays use single wire safety (SWS) signals that allow multiple safety
relays to work in coordination with one another in small to medium size safety
systems. The SWS feature allows safety relays to communicate the highest
safety-rated control signal from one safety system to another over one wire
(plus a common ground connection). The wire must be less than 30 m (98.4 ft)
long.
CI Safety Relay
(Cat
. N
o
. 440R
-S13R2)
The CI safety relay has one dual-channel input with three electromechanical
relay outputs. The CI safety relay can be configured for automatic or
monitored manual reset by adjusting the switch on the front. The CI safety
relay has an SWS output, but does not support SWS input.
The CI safety relay is compatible to the MSR127 safety monitoring relay. The
CI safety relay has the same number of inputs and outputs, the same width, and
the same terminal locations as the MSR127 relay.
DI Safety Relay
(Cat
. N
o
. 440R
-D22R2)
The DI safety relay has two dual-channel inputs and two electromechanical
relay outputs. In addition, the DI safety relay has an SWS input and output.
The DI safety relay can be set for automatic or monitored manual reset by
adjusting the switch on the front panel. The configuration switch also sets the
AND/OR logic that is applied to the inputs.
DIS Safety Relay
(Cat
. N
o
. 440R
-D22S2)
The DIS safety relay has two dual-channel inputs and four solid-state outputs.
Two of the four solid-state outputs are designed to operate with high-
capacitance loads. In addition, the DIS safety relay has an SWS input and
output. The DIS safety relay can be set for automatic or monitored manual
reset by adjusting the switch on the front panel. The configuration switch also
sets the AND/OR logic that is applied to the inputs.
(1) The EM safety relay does not require configuration.