Honeywell FS-TSDO-0824 Safe Digital Output FTA (8 CH, 24 VDC)

Product Overview

The Honeywell FS-TSDO-0824 is a Safe Digital Output Field Termination Assembly (FTA) providing 8 channels of 24 VDC digital output for Honeywell Safety Manager systems. It interfaces the safety controller with field actuators such as solenoid valves, motor starters, and alarm horns, delivering reliable switching with integrated diagnostics and short-circuit protection for safety-critical applications.

Key Features

• 8 Safe Digital Outputs: 24 VDC sourcing outputs for actuator control
• Short-Circuit Protection: Per-channel protection with automatic reset
• System Interconnection: SIC cable interface to redundant SDO-0824 I/O modules
• Status LEDs: Per-channel indication for output state and fault diagnostics
• DIN Rail Mounting: Universal snap-in for TS32/TS35 rails
• Compact Design: Space-efficient for dense control panel layouts

Technical Specifications

• Model: FS-TSDO-0824 (also FC-TSDO-0824)
• Type: Safe Digital Output FTA
• Channels: 8 digital outputs
• Output Voltage: 24 VDC
• Output Current: 0.5 A per channel (typical)
• Total Current: 4 A maximum (all channels combined)
• Short-Circuit Protection: Electronic, automatic reset
• Dimensions: 60 × 70 × 58 mm (L × W × H)
• DIN Rail: TS32 / TS35 × 7.5
• Wire Size: Max 2.5 mm² (AWG 14)
• Strip Length: 7 mm (0.28 in)
• Tightening Torque: 0.5 Nm (0.37 ft-lb)
• Operating Temperature: -40°C to +70°C
• Approvals: CE, TÜV, UL, CSA, FM

Installation Guide

1. DIN Rail Mount: Snap FTA onto TS32/TS35 rail
2. Actuator Wiring: Connect solenoid valves, motor starters, or other 24 VDC actuators to screw terminals
3. Power Supply: Ensure 24 VDC supply can support total load current (max 4 A)
4. SIC Cable: Plug SIC-C-12 system interconnection cable into SIC connector
5. Redundancy: For redundant SDO-0824 modules, connect both FTAs to paired I/O modules

FAQ

Q: What is the maximum load per channel?
A: Each channel can source up to 0.5 A. The total combined load across all 8 channels must not exceed 4 A.

Q: Can this drive inductive loads?
A: Yes, but external flyback diodes are recommended for inductive loads (solenoids, relays) to protect output transistors.

Q: What happens during a short circuit?
A: The affected channel enters current-limiting mode. The fault is reported to the safety controller, and the channel automatically resets when the short is removed.

Selection Tips

• Calculate total load current to ensure power supply adequacy (max 4 A combined)
• For higher current requirements, use relay output modules or external relays
• Ensure paired I/O module is SDO-0824 installed in the chassis
• For SIL 3 applications, use redundant SDO-0824 module pairs