Honeywell 621-1180RC Digital Input Module

The Honeywell 621-1180RC is a high-density digital input module designed to interface 115 VAC signals with modular controller systems. It features 32 input channels, offering reliable and isolated signal acquisition for industrial automation processes. Ideal for applications where 115 VAC logic input is required across multiple channels in a compact form factor.

Technical Specifications

Applications

• Distributed control systems (DCS)

• Manufacturing automation

• Energy and utilities process monitoring

• Power generation equipment

• Critical safety systems requiring input from high-voltage switches or contactors

Key Advantages

• Supports high-density 32-point input for efficient wiring

• Optical isolation ensures signal integrity and equipment protection

• Compatible with Honeywell modular systems for easy integration

• Compact and rugged design ideal for industrial environments

• Quick response time enhances control performance

• Simplified installation and maintenance

Frequently Asked Questions (FAQ)

Q1: What voltage does the 621-1180RC module support?

A1: It supports 115 VAC input within a range of 85–132 VAC.

Q2: How many input points are available on the module?

A2: The module provides 32 isolated digital input channels.

Q3: What is the isolation type used in this module?

A3: Optical isolation is used to protect control logic from voltage spikes.

Q4: Can it be used in high-temperature environments?

A4: Yes, it operates up to 60°C and can be stored at -40°C to 85°C.

Q5: What are the mounting options for this module?

A5: It supports both DIN rail and rack mounting.

Q6: Is the 621-1180RC hot-swappable?

A6: No, power should be removed before module replacement.

Q7: Does it support diagnostics for input failure?

A7: It does not include onboard diagnostics; monitoring is done via the controller.

Q8: What is the response time for signal recognition?

A8: The typical response time is less than 20 milliseconds.

Q9: What type of wiring is recommended for this module?

A9: Use shielded wiring for input channels to prevent noise interference.

Q10: Is this module compatible with Honeywell 620 series racks?

A10: Yes, it is designed for compatibility with the 620 and 621 modular controller series.