1771-ID01 | Allen-Bradley PLC-5 220V AC Isolated Input Module

Product Overview

The Allen-Bradley 1771-ID01 functions as a high-voltage digital input interface for the PLC-5 Universal I/O platform. It converts 220V AC field signals into logic-level data that the processor can interpret. This module features 6 isolated input channels, providing a critical safety barrier between high-voltage field wiring and the sensitive backplane electronics. Despite its discontinued status from the OEM, we supply this unit as 100% Brand New and original, allowing you to maintain legacy infrastructure without compromising on component integrity or safety.

Technical Specifications

The 1771-ID01 integrates into any standard 1771 Universal I/O chassis based on the following technical parameters:

Engineering Advantages

• Point-to-Point Isolation: The 1771-ID01 isolates each of its 6 channels individually. This architecture prevents ground loops and ensures that a fault on one high-voltage circuit does not migrate to adjacent inputs or damage the PLC backplane.

• High-Voltage Tolerance: Designed specifically for 220V AC environments, the module handles the rugged electrical demands of heavy industrial machinery, motor control centers, and utility applications where standard 120V logic is insufficient.

• Simplified Maintenance: The module utilizes a swing-arm wiring assembly (sold separately), which allows technicians to replace the module without disconnecting any field wires. This feature eliminates wiring errors during emergency repairs.

• Legacy System Continuity: By installing a brand-new 1771-ID01, you eliminate the intermittent "ghost" signals often caused by aged, leaky capacitors found in used or refurbished modules. This ensures the timing and detection of AC pulses remain within factory specifications.

FAQs

• Q: Can I use the 1771-ID01 with DC input signals?

• A: No. The 1771-ID01 features circuitry specifically tuned for AC voltage detection. Using DC signals may cause the input to remain in an "OFF" state or fail to trigger the internal opto-couplers correctly.

• Q: Does this module require a specific slot in the 1771 chassis?

• A: No. You can place the 1771-ID01 in any available I/O slot in a 1771 Universal I/O chassis. Ensure your power supply provides sufficient 5V DC current to meet the module's 74 mA requirement.

• Q: Is this a refurbished unit since the series is discontinued?

• A: No. We guarantee this unit is 100% Brand New. It originates from surplus factory-sealed stock, offering the full original lifespan and reliability of a new component, which is critical for 220V AC applications where insulation breakdown is a concern in aged parts.

• Q: Does the module ship with the field wiring arm?

• A: Typically, 1771 modules do not include the wiring arm. You must reuse your existing 1771 swing-arm or purchase a new one to complete the installation.