Specification - Emerson PACSystems RSTi User Manual

User Manual
GFK-2745C
4.8.2

Specification

The following table describes the Input Specifications and the General Specifications for ST-
122F.
Table 42: ST-122F Input and General Specifications
Items
Input Specification
Inputs Per Module
Indicators
ON-state Voltage
Minimum OFF-state Voltage
ON-state Current
Input Signal Delay
Filtering Time
Common Type
General Specification
Power Dissipation
Isolation
Field Power
Wiring
Weight
Module Size
Environment Condition
Discrete Inputs
Specification
16 Points, Negative Logic
16 Green Input States, 1 Green/Red RSTi Bus State
24Vdc nominal
Minimum 10.2Vdc ~ Maximum 28.8Vdc
Maximum 5Vdc
Maximum 6mA/Point @28.8Vdc
OFF to ON: Maximum 3ms
ON to OFF: Maximum 3ms
Typical 1.5ms
16 Points/2COM
Maximum 45mA @ 5.0Vdc
I/O to Logic: Photo coupler Isolation
Supply Voltage: 24Vdc nominal
Voltage Range: Minimum 11 ~ Maximum 28.8Vdc
Power Dissipation: 5mA@28.8Vdc Per Point
Module Connector: HIF3BA-20D-2.54C
70g
12mm x 99mm x 70mm
See "Environmental Specifications" in Appendix A.
Chapter 4
Nov 2019
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