1771-IGD/A

Overview

Allen-Bradley 1771-IGD/A is a TTL Input Module designed for 1771 I/O chassis, providing 16 inputs with fast signal response and reliable isolation for industrial control systems.

Module Configuration

• Inputs per module: 16

• Module location: 1771-A1B thru -A4B, 1771-AM1, 1771-AM2 I/O chassis

Electrical Ratings

• Input voltage (HIGH = TRUE): ON 2.0–5.25 V DC, OFF -0.2–0.8 V DC

• Input voltage (LOW = TRUE): ON -0.2–0.8 V DC, OFF 2.0–5.25 V DC

• Customer current sink: 7 mA max per input

• Customer current source: 0.8 mA max per input

• Customer supply voltage: 5.0 V DC (+0.25 V), Class 2, 50 mV ripple max

• Customer supply current: 380 mA max per module

Performance

• Input signal delay: <1 ms

• Isolation voltage: Tested to 600 V DC for 1 s

Power and Thermal Data

• Power dissipation: 2.7 W max, 0.4 W min

• Thermal dissipation: 9.2 BTU/hr max, 1.4 BTU/hr min

• Backplane voltage/current: 5 V DC, 130 mA max

---