FC-TSAI-1620M Honeywell Safety Manager Analog Input FTA

Global PLC Spare HUB's Insight

The Honeywell FC-TSAI-1620M is a high-integrity Field Termination Assembly (FTA) designed specifically for the Safety Manager ecosystem. It serves as the physical interface between critical field sensors and the SAI-1620m high-density input module. Engineering teams prioritize the FC-TSAI-1620M for its robust linear conversion of 0(4)—20 mA DC signals into high-precision 0—4 Vdc internal levels. Its compliance with Class I, Division 2 Hazardous Locations makes it a standard for volatile industrial environments. We recommend this module for safety-critical loops where high-density I/O footprint reduction is required without compromising loop accuracy (0.1%). Ensure your SICC-0001 interconnection cables are correctly routed and shielded to maintain signal integrity across the backplane link.

Technical Specification Matrix

• Brand: Honeywell
• Model: FC-TSAI-1620M
• Type: Analog Input Field Termination Assembly (FTA)
• Channel Density: 16 Channels (Separated into 2 groups of 8)
• Input Range: 0—25 mA (Standard 0/4—20 mA loops)
• Input Resistance: 250 Ω (± 1%)
• Conversion Accuracy: 0.1% to the SAI-1620m module
• External Power: 30 Vdc nominal
• Protection: Integrated 315 mAT slow-acting fuses (5 x 20 mm)
• Hazardous Area Rating: Class I, Division 2
• Mounting Type: Universal snap-in for TS32 / TS35 DIN EN rails
• Terminal Specs: AWG 14 max wire diameter, 0.5 Nm torque

Engineering Applications & Compatibility

• Safety Manager Integration: Designed exclusively to interface with the SAI-1620m high-density analog module.
• Hazardous Area Sensing: Optimized for pressure, temperature, and level transmitters in Class I Div 2 areas.
• Dual-Purpose Logic: Suitable for both Safety Instrumented Systems (SIS) and non-safety process control.
• Field Connectivity: Utilizes SICC-0001/Lx system interconnection cables for reliable chassis-to-field linking.

Diagnostic & Safety Capabilities

• Power Distribution Monitoring: Enables real-time monitoring of external power connected to the FTA module.
• Current Limitation: Integrated voltage and current limiting ensures field loops remain within safe energy parameters.
• Loop Integrity: Precise 250 Ω shunt resistance allows for consistent diagnostic signal levels.
• Serviceability: Screw terminals and individual channel fusing (315 mAT) simplify localized troubleshooting.

Global Logistics & Service Commitment

• Warranty Coverage: Every unit is backed by a full 12-month industrial warranty.
• Global Shipping: Priority express dispatch via FedEx, UPS, and DHL.
• Processing Speed: Orders are confirmed and shipped within 24-48 hours.
• Compliance: All components are verified for authentic Honeywell Safety Manager compatibility.

Selection & Buying Guide

• Verify Grouping: Note that 16 channels are split into two groups of eight with a common 0V point.
• Power Headroom: This is a passive interface; ensure your external 30Vdc supply handles the total loop load.
• DIN Rail Security: For high-vibration environments, use end-stops to prevent module drift on the rail.

Professional FAQ

Can the FC-TSAI-1620M power 2-wire passive transmitters?

Yes, the module provides power supply distribution to each transmitter with integrated voltage-current limitation for hazardous areas.

What is the significance of the 0.1% accuracy rating?

This ensures that the analog value received by the Safety Manager CPU is an ultra-precise representation of the field sensor's current.

How do I identify a blown fuse on a specific channel?

A loss of signal or "Under-range" alarm in the Safety Manager software usually indicates a blown 315 mAT fuse on the corresponding channel.

Is it possible to mix safety and non-safety signals on the same FTA?

While the module supports both, standard safety engineering practices recommend segregating safety-critical loops onto dedicated FTAs.

What is the maximum cable length for the SICC-0001 interconnection?

The length depends on your specific cabinet layout, but it is optimized for high-density rack connectivity within the enclosure.

Tags