1771-IMD

Overview

1771-IMD is a Rockwell Allen-Bradley AC input module for 220V AC signal interfacing in PLC-5 systems.

Electrical Specifications

• Nominal Input Voltage: 220V AC @ 50/60 Hz

• Nominal Input Current: 10.4 mA

• On-State Voltage Range: 184–250V AC / 166–230V DC

• Minimum On-State Current: 8.7 mA @ 184V AC, 0.43 mA @ 166V DC

• Maximum Off-State Voltage: 92V AC or DC

• Maximum Off-State Current: 3 mA @ 92V AC, 0.25 mA @ 92V DC

• Input Impedance: 0.15 µF in parallel with 360 kΩ

Performance

• Input Signal Delay (On-State): 15 + 8 ms

• Input Signal Delay (Off-State): 172 + 56 ms

• Opto-Electrical Isolation: 1500V AC (RMS)

Power & Installation

• Power Dissipation: Max. 5.8 W, Min. 1.3 W

• Thermal Dissipation: Max. 19.8 BTU/hr, Min. 4.5 BTU/hr

• Backplane Current: 250 mA @ 5V DC ±5%

• Compatible Chassis: 1771-A1B, -A2B, -A3B, -A3B1, -A4B

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