Rockwell Automation 1797-IBN16 FLEX Ex NAMUR Input Module - Manual (Page 14)

14 FLEX Ex NAMUR Input Module
Publication 1797-5.7 - March 2010
Specifications
1797-IBN16 16 NAMUR Input Module
Attribute Value
Number of inputs 16 (1 group of 16), nonisolated, sinking
IS input type Ex ia IIB/IIC T4,
AEx ia IIC T4,
Class I, II, III Division 1 Group A-G T4
IS module type Ex ib IIB/IIC T4,
AEx ib IIC T4,
Class I, Division 1 Group A-D T4
Input type NAMUR compatible
ON-state current 2.1 mA
OFF-state current 1.2 mA
Hysteresis 0.2 mA
Input frequency 1000 Hz max
Input pulse width >500 µs on or off
Max load voltage U/V = 7.5V DC
Short circuit current I = 7.5 mA
Short circuit threshold I > 6 mA
Lead breakage threshold I < 0.35 mA
Input delay times
OFF to ON
ON to OFF
1 ms, 2 ms, 3 ms, 5 ms, 9 ms, 17 ms, 33 ms
1 ms, 2 ms, 3 ms, 5 ms, 9 ms, 17 ms, 33 ms
1 ms default - selectable thru output image table (see
Setting Input Filter Times)
Indicators (field side
indication, customer device
driven) 16 yellow status indicators
16 red fault indicators
1 green module power indicator