6
Rockwell Automation Publication 440R-UM014D-EN-P - December 2019
Preface
•
OSSD (Output Signal Switching Device) -
Typically a pair of solid-
state signals that are pulled up to the DC source supply. The signals are
tested for short circuits to the DC power supply, short circuits to the
DC common and shorts circuits between the two signals.
•
Outputs Energized/De-energized -
describes that state of the
outputs in this manual when the output is described as energized or
de-energized.
The exception is the semiconductor output ERR, which is not described
in
. The ERR semiconductor output is ON when an error is
detected and OFF when no error is detected.
Table 1 - State of the Outputs
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Terminal
De-energized
Energized
Type
Function
11/12
Closed
Open
Voltage free
Monitoring
(non-safety)
23/24
Open
Closed
Safety related
33/34
Open
Closed
43/44
Open
Closed
53/54
Open
Closed
Status only
ON
Off
On
Semi-conductor
Resource
Description
Industrial Automation Wiring and Grounding Guidelines,
publication
Provides general guidelines for installing a
Rockwell Automation® industrial system.
Product Certifications website:
Provides declarations of conformity, certificates, and
other certification details.
