Allen-Bradley/Rockwell Automation 1771-IBN field wiring arm

The Allen-Bradley 1771-IBN is a 24VDC discrete input module from the bulletin 1771 product family. This module is a Programmable Logic Controller (PLC) module that is used to interface external signaling devices such as switches, sensors, auxiliary contacts that allow flow of 24VDC voltage or signal voltage with range of 10-30VDC.

The 1771-IBN features Thirty-Two (32) input channels with nominal input range 4.7 mA @ 10VDC or 15.6 mA @ 30VDC. It has a minimum OFF-state Current of 1.7 mA @ 5VDC. Each channel of this module has an OFF-state voltage of 5VDC, maximum and ON-state voltage of 10VDC, minimum. The module’s input signal delay is 6 ms +/- 2 ms low to high and high to low propagation. It has a power dissipation of 16.4 Watts, maximum and Thermal Dissipation 53.3 BTU/Hr maximum and minimum of 5.1 BTU/hr minimum dissipation. This module has a backplane current draw of 280 mA at 5VDC, maximum.

Technical specifications for 1771-IBN

Typical AC Signal Delay (Off)20 (+/- 15) ms

Wiring Arm1771-WN

Typical DC Signal Delay (Off)N/A

Typical DC Signal Delay (On)6 (+/- 2) ms (Digital Filter)

Max DC Off-State Current1.7 Miliamperes

Backplane Current280 Milliamperes

DC Operating Voltage10-30 Volts

Number of Inputs32 Inputs (4 Sets of 8)

Module TypeDigital DC Input Module

Part Number/Catalog No.1771-IBN

Dimensions3.5 x 6.5 x 2.0 in (89 x 165 x 51 mm)

BrandAllen-Bradley

ManufacturerRockwell Automation

Off-state voltage, max5V DC

On-state voltage, min10V DC

Voltage Category10-60 Volts DC, Sink (Source Load)

CoatingConformal Coat

When terminating signal devices to this input module, appropriate wire size is 0.25-2.5 mm sq. (22...14 AWG) solid or stranded copper wire with insulation rating of 75 °C (167 °F) or greater and maximum insulation thickness of 1.2 mm (3/64 in.). It requires a field wiring arm with catalog number of 1771-WN with wiring arm screw Torque of 1.0 n-m. It has an open type enclosure.