Honeywell FS-TSDI-1624 Safe Digital Input Field Termination Assembly (FTA)

Product Overview

The Honeywell FS-TSDI-1624 is a Safe Digital Input Field Termination Assembly (FTA) providing 16 channels of 24 VDC digital input for Honeywell Safety Manager and FSC systems. It interfaces field wiring with the safety controller via system interconnection cables, offering robust signal conditioning, overvoltage protection, and diagnostic capabilities for safety-critical applications.

Key Features

• 16 Safe Digital Inputs: 24 VDC, high-density channel configuration
• System Interconnection: SIC-C-12 cable interface to redundant SDI-1624 modules
• Overvoltage Protection: Compliant with IEC 1010 Overvoltage Category 3
• DIN Rail Mounting: Universal snap-in for TS32/TS35 rails
• Screw Terminals: Max 2.5 mm² (AWG 14) wire capacity
• Line Monitoring: Detects open circuits and short circuits in field wiring

Technical Specifications

• Model: FS-TSDI-1624 (also FC-TSDI-1624)
• Type: Safe Digital Input FTA
• Channels: 16 digital inputs
• Input Voltage: 24 VDC
• Max Voltage: 36 VDC (IEC 1010 Cat. 3)
• Dimensions: 60 × 70 × 58 mm (L × W × H)
• DIN Rail: TS32 / TS35 × 7.5
• Used Rail Length: 61 mm (2.40 in)
• Wire Size: Max 2.5 mm² (AWG 14)
• Strip Length: 7 mm (0.28 in)
• Tightening Torque: 0.5 Nm (0.37 ft-lb)
• Approvals: CE, TÜV, UL, CSA, FM

Installation Guide

1. Rail Mounting: Snap FTA onto DIN rail in control cabinet
2. Field Wiring: Connect digital input devices to screw terminals
3. SIC Cable: Plug SIC-C-12 system interconnection cable into SIC connector
4. Redundancy: For redundant configurations, connect both FTAs to paired SDI-1624 modules
5. Torque Verification: Ensure all terminal screws tightened to 0.5 Nm

FAQ

Q: What is the difference between FS-TSDI-1624 and FC-TSDI-1624?
A: They are the same product with different prefix conventions. "FS-" and "FC-" denote manufacturing variants but are functionally identical and interchangeable.

Q: Can this FTA be used in hazardous locations?
A: Yes, it is rated for Class I, Division 2 hazardous locations when properly installed.

Q: What cable connects this FTA to the I/O module?
A: The SIC-C-12 system interconnection cable connects the FTA to the SDI-1624 digital input module in the chassis.

Selection Tips

• Verify field device voltage (24 VDC) and current requirements
• For NAMUR applications, use FC-TSDI-16UNI instead
• Ensure SIC cable length does not exceed maximum specifications
• Consider redundant SDI-1624 module pairs for SIL 3 applications