Allen Bradley 1771-ID01 220V Isolated AC/DC Input Module

Overview

The Allen-Bradley 1771-ID01 is a 220V isolated AC/DC input module designed for the PLC-5 controller family. It delivers dependable input signal processing for both AC and DC applications, ensuring accurate system response and robust electrical isolation between field devices and the control logic.

Technical Specifications

• Manufacturer: Allen-Bradley

• Product Line: PLC-5 Series

• Part Number: 1771-ID01

• Module Type: Digital AC/DC Input Module

• Number of Inputs: 6 isolated input channels

• Voltage Category: 220V AC/DC

• AC Operating Voltage Range: 184–276 VAC

• DC Operating Voltage Range: 18–276 VDC

• Backplane Current Draw: 74 mA

• Maximum AC Off-State Current: 0.7 mA

• Maximum DC Off-State Current: 1.0 mA

• Typical Signal Delay (AC On): 20 ±10 ms

• Typical Signal Delay (AC Off): 20 ±10 ms

• Typical Signal Delay (DC On): 10 ±4 ms

• Typical Signal Delay (DC Off): 20 ±9 ms

• Weight: 1.19 lbs (0.54 kg)

• Input Type: Electrically isolated channels for AC/DC logic signals

This module ensures precise and noise-immune signal detection, minimizing false triggering in high-interference industrial environments. Its design meets industrial reliability standards, suitable for long-term operation in process automation systems.

Application Scenarios

The 1771-ID01 is well-suited for:

• Power generation and distribution control systems

• Process automation panels requiring isolated input signals

• Manufacturing and assembly line control systems

• High-voltage sensing in mixed AC/DC installations

FAQs

Q: Can the 1771-ID01 be mixed with other input modules in the same chassis?
A: Yes, it can operate alongside other PLC-5 I/O modules within the same chassis without interference.

Q: Is external power required for this module?
A: No, it draws power directly from the PLC-5 backplane (74 mA).

Q: Does it support DC-only operation?
A: Yes, the module supports both AC and DC input signals across a broad voltage range (18–276 VDC).