Rockwell Automation Publication 1734-UM013N-EN-P - September 2017 177
Appendix C
Specifications
Technical Specifications for
Series A Modules
Safety Digital Input Module Specifications
Topic Page
Technical Specifications for Series A Modules 177
Technical Specifications for Series B Modules 189
Safety Digital Output Module Specifications 1734-OBV2S 194
Environmental Specifications 196
Certifications 199
Standards 199
Attribute 1734-IB8S Series A
Safety Input
Inputs per module 8
Input type Current sinking
Voltage, on-state input 11…30V, 3.5 mA DC
Voltage, off-state input, max 5V, 3.5 mA DC
Current, on-state input, min 3.3 mA
Current, off-state, max 1.3 mA
IEC 61131-2 (input type) Type 3
Reaction time <16.2 ms
Pulse Test Output
Output type Current sourcing
Number of sources (T0, T1M, T2, T3M) 4
Test output current (each output point) 0.7 A max
Aggregate current of test outputs per module 2.8 A @ 40 °C (104 °F)
Pulse width 525 μs
Pulse period 144 ms
Maximum field capacitance limit that is permitted per
test output
100 nF
Current, max (when used to control muting lamp) 25 mA (to avoid fault when used as a muted lamp output)
Current, min (when used to control muting lamp) 5 mA (at which fault indication is generated when used as
a muted lamp output)
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