Allen-Bradley 1769-IA8I AC input module

The Allen-Bradley 1769-IA8I is a 1769 Compact I/O individually isolated 120VAC input module. This module features Eight (8) isolated input that accepts 79-132VAC voltage range. This module has power supply distance rating of Eight (8) and compatible for use with the CompactLogix and MicroLogix 1500 controllers.

Applications of 1769-IA8I, 1769-IA8IK

The 1769 Compact I/O™ modules can be used in these applications:

•With a 1769 CompactLogix™ controller

• For expansion I/O in a MicroLogix™ 1500 controller assembly

• In an assembly with a 1769-ADN DeviceNet® adapter

• In an assembly with a 1769-AENTR Ethernet adapter

Unless connected to a MicroLogix 1500 base, each bank of I/O modules must include its own power supply.

Install the I/O modules on a panel with two mounting screws or on a DIN rail. The modules mechanically lock together with a tongue-andgroove design and have an integrated communication bus that is connected from module to module by a movable bus connector.

Technical Specifications of 1769-IA8I, 1769-IA8IK

Attribute 1769-IA8I, 1769-IA8IK

Inputs 8 individually isolated

Voltage category 100/120V AC

Operating voltage range 79…132V AC; 47…63 Hz

Input delay, on 20 ms;Input delay, off 20 ms

Current draw @ 5.1V 90 mA

Heat dissipation, max 1.81 W

Off-state voltage, max 20V AC

Off-state current, max 2.5 mA

On-state voltage, min 79V AC

On-state current, min 5 mA @ 74V AC

On-state current, max 12 mA @ 120V AC

Inrush current, max(1) 250 mA

Input impedance, max 12 kW @ 50 Hz 10 kW @ 60 Hz

Isolation voltage

Verified by one of these dielectric tests: 1517V AC for 1 s or

2145V DC for 1 s, input point to bus and group to group

132V AC working voltage (IEC Class II reinforced insulation)

Weight, approx 270 g (0.60 lb)

Dimensions (HxWxD), approx 118 x 35 x 87 mm (4.65 x 1.38 x 3.43 in.)

Height with mounting tabs 138 mm (5.43 in.)

Module location DIN rail or panel mount

Power supply 1769-PA2, 1769-PB2, 1769-PA4, 1769-PB4

Power supply distance rating 8 modules

Terminal screw torque 0.68 N•m (6 lb•in)

Retaining screw torque 0.46 N•m (4.1 lb•in)

Wire size (22…14 AWG) solid

(22…16 AWG) stranded

Wire type Cu-90 °C (194 °F)

IEC input compatibility Type 1+

Replacement terminal block 1769-RTBN18 (1 per kit)

Replacement door label 1769-RL1 (2 per kit)

Replacement door 1769-RD (2 per kit) Vendor ID code 1

Product type code 7 Product code 81

Enclosure type rating None (open-style)

The 1769-IA8I input channels has input response time of 20 ms for OFF to ON and OFF to ON signal transitions. It draws 5.1 mA current from the backplane and dissipated heat amounting to 1.81 Watts. The module’s minimum ON-state signal voltage is 79 VAC while the maximum ON-state signal voltage is 132VAC. Similarly, the minimum ON-state current is 5 mA at 74VAC and maximum ON-state current of 12mA at 120VAC. Conversely, the maximum OFF-state signal voltage is 20VAC while the maximum OFF-state current is 2.5 mA.