FC-TIDI-1624 Honeywell 16-Channel Input Module

Product Overview

The FC-TIDI-1624 (general type FS-TIDI-1624) is a premium 16-channel Field Termination Assembly (FTA) module designed for Honeywell Safety Manager systems. This module acts as the specialized physical interface for non-safe isolated 24V DC input channels, seamlessly routing signals between external field wiring and system interconnection cables. Engineered for high-density control environments, it enables reliable monitoring of digital field inputs while offering robust galvanic isolation and high-frequency switching capabilities to safeguard central processing units.

Core Technical Advantages

• Redundant Configuration Ready: Interfaces smoothly with SDI-1624 input modules via standard SICC-0001/Lx system interconnection cables to support fault-tolerant redundant architectures.
• Superior Galvanic Isolation: Provides high-integrity 1000V AC isolation both input-to-output and input-to-input, preventing electrical faults or surges from cascading through the system.
• Robust Reverse Polarity Protection: Utilizes an integrated series diode configuration capable of withstanding a maximum reverse voltage of 300V, minimizing field-wiring human errors.
• Precise Voltage Thresholds: Features clear electrical parameters with a pick-up voltage of 17.5V DC and a drop-out voltage of 2.8V DC to eliminate false signal reporting.

Technical Specifications

Installation & Maintenance Guide

Field Wiring Termination

Connect field wires using the onboard screw terminals. Strip the wires exactly to 7 mm and ensure the wire diameter does not exceed 2.5 mm² (AWG 14). Tighten the terminal screws to a specific torque of 0.5 Nm to prevent over-tightening or loose contacts that create signal chatter.

DIN Rail Mounting and Space Alignment

Snap the compact assembly securely onto standard DIN EN rails, supporting both TS32 and TS35 × 7.5 profiles. Maintain clean horizontal orientation and ensure adequate routing space for the thick SICC-0001/Lx system interconnection cables to prevent physical tension on the module headers.

System Connection & Redundancy

Plug the system interconnection cable (SICC-0001/Lx) into the module to bridge data back to the SDI-1624 input modules. For redundant system operation, ensure both parallel routing links are firmly engaged and verified within the Safety Manager hardware configuration setup.

Engineering Advantages

• Extended Mechanical Longevity: Built to endure rigorous processing life with an expected 1,000,000 electrical switch operations and up to 10,000,000 mechanical switch operations.
• High Noise Immunity: High-threshold galvanic separation reduces industrial ground loop noise and crosstalk between adjacent input channels inside complex control cabinets.
• Global Standards Certified: Carries verified CE, TUV, UL, and CSA certifications, making it fully compliant with strict international safety laws and industrial project regulations.

Technical FAQs

Q1: What is the primary purpose of the series diode inside the FC-TIDI-1624?
A1: The series diode acts as a hardwired reverse polarity protection mechanism. It safeguards the module by blocking backward current up to a maximum reverse voltage rating of 300V.

Q2: Can this module handle fast-pulsing digital inputs?
A2: The module supports a maximum switching frequency of 20Hz, making it ideal for standard industrial status contacts, limit switches, and level indicators, but not for high-speed pulse counters.

Q3: How is redundancy achieved using this specific Field Termination Assembly?
A3: The FC-TIDI-1624 establishes common multi-channel links through the SICC-0001/Lx interconnection cable. This allows a dual set of SDI-1624 input modules to read the exact same field wiring points simultaneously for true hardware redundancy.