Overview
The Allen-Bradley 1771-IBN is a DC input module for 1771 I/O chassis, supporting 32 input points with a 10–30 V DC range.
Input Characteristics
-
Nominal Input Current: 4.7 mA @ 10 V, 15.6 mA @ 30 V
-
Off-State Current: 1.7 mA @ 5 V DC
-
On-State Voltage: Min 10 V DC
-
Signal Delay: Low-to-high 6 ms ±2 ms, High-to-low 6 ms ±2 ms
Power and Thermal
-
Power Dissipation: 16.4 W max, 1.5 W min
-
Thermal Dissipation: 53.3 BTU/hr max, 5.1 BTU/hr min
-
Backplane Current: 280 mA @ 5 V DC
Isolation and Wiring
-
Isolation Voltage: 60 V continuous, basic insulation type
-
Tested: 500 V AC for 60 s, I/O to system
-
Wire Size: 0.25–2.5 mm² (22–14 AWG)
-
Wiring Category: 2 on signal ports
-
Enclosure Type: Open style
-
Keying: 14–16, 18–20
