FC-TSAO-0220M Honeywell FTA 2-Channel Output

Product Overview

The FC-TSAO-0220M is a high-integrity Safe Analog Output Field Termination Assembly (FTA) module. It acts as a rugged interface between the system interconnection cable (SICC-0001/Lx) and external field wiring via secure screw terminals. Supporting two isolated 0(4)-20 mA analog output channels, this module controls field devices like valves and actuators in both safety-critical (up to SIL 3) and non-safety applications within process industries.

Core Technical Advantages

• High Isolation: Built-in isolation barriers safeguard upstream SAO-0220M modules from field-side electrical surges and transients up to IEC 1010 Overvoltage Category 3 standards.
• Robust Load Capacity: Supports a 40 V DC maximum voltage and a continuous 25 mA loop current per channel to drive high-impedance loads over long distances.
• Gas-Tight Connections: Heavy-duty screw terminals accept wires up to 2.5 mm² (AWG 14), preventing loose wiring caused by industrial machinery vibration.

Technical Specifications

Installation & Maintenance

• Mounting: Snap onto standard TS32 or TS35 × 7.5 DIN rails. Allocate 51 mm of rail length for the TSAO module and 65 mm for the TSAOH variant.
• Wiring: Strip field wires to exactly 7 mm. Use a calibrated torque screwdriver to tighten terminal screws to 0.5 Nm (0.37 ft-lb).
• Shielding: Ground all field wiring shields at the cabinet entry panel to avoid noise interference in the 4-20 mA loop.

Why Choose This Module

• SIL 3 Compliance: Fully certified by TUV, UL, CSA, and FM for use in critical emergency shutdown (ESD) systems.
• Native Integration: Connects perfectly with Honeywell Safety Manager platforms using standard SICC-0001/Lx cables.
• Automatic Fault Diagnostics: Supports loop status monitoring to detect open-circuit and short-circuit field conditions instantly.

Technical FAQs

Q1: What separates the FC-TSAO-0220M from the FC-TSAOH-0220M?
A1: The standard TSAO version has fully isolated channels and a smaller footprint (50 mm width), while the TSAOH version shares a common 0V return and has a wider footprint (64 mm width).

Q2: Does this unit support line monitoring for field faults?
A2: Yes, when integrated with Honeywell safety controllers, it diagnoses open and short circuits across the control loop automatically.

Q3: Is this module safe for hazardous area installation?
A3: Yes. It carries FM and CSA approvals, allowing safe installation in Class I, Division 2 / Zone 2 environments when mounted inside an appropriate enclosure.