Honeywell FC-TDO-1624

Product Introduction The FC-TDO-1624 is a Field Terminal Assembly for Honeywell FSC safety system digital output modules. It provides field wiring termination interface for 16 channels of discrete digital output signals. This terminal block converts internal module connector signals into screw terminal field wiring points, and supports 24VDC discrete switching output for industrial field actuators, solenoid valves and indicator lights. It simplifies field wiring and circuit isolation for safety control loops.

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Description

Honeywell FC-TDO-1624

Technical Specifications 16 digital output channels; Operating voltage 24 VDC; Maximum continuous current per channel 1.5 A; DIN rail mounting TS35 standard rail; Screw terminal wire range up to 2.5 mm²; Terminal tightening torque 0.5 Nm; Operating temperature -20°C to +60°C; Non-safety rated FTA assembly.

Functional Features Transfers 16 channel discrete output signals from I/O module to field wiring; Screw type terminals allow convenient field cable connection; Built-in channel overcurrent protection for each output path; Compact DIN rail installation saves cabinet space; Channel signal isolation reduces cross-talk between loops; Clear channel marking for wiring identification.

Application Scenarios Petrochemical FSC safety control cabinet; Chemical plant solenoid valve drive circuit; Refinery alarm indicator control; Water treatment emergency shutdown auxiliary output; Power plant auxiliary equipment discrete control; Gas pipeline safety interlock field wiring terminal.

Performance Parameters Channel on-off response speed stable; Terminal contact resistance maintains low value; Overcurrent protection trigger action fast; Insulation resistance between channels meets industrial standard; Vibration resistance adapts to industrial cabinet environment.

Material Composition Green FR4 printed circuit board; Orange flame retardant plastic terminal housing; Copper alloy screw terminals; Plastic channel marking tags; Plastic locking clips for DIN rail; Copper internal signal traces.

Structural Features Compact rectangular module structure; Multi-row screw terminals on front side; D-type rear connector to mate with FSC digital output module; DIN rail clip at bottom; Printed channel number labels on terminal area; Plastic housing protects PCB circuit.

Working Principle Digital switching signals from FSC output module transmit through rear D connector to PCB traces inside FTA. Each signal channel routes to corresponding front screw terminal. Field cables connect to screw terminals. When safety module sends ON command, the corresponding terminal channel conducts 24VDC power to drive field actuator. Built-in protection components limit current for each individual channel.

Installation Requirements Clip FTA firmly onto TS35 DIN rail inside control cabinet; Match rear connector correctly with corresponding FSC digital output module; Strip field wire length to 7 mm before terminal connection; Tighten terminal screw to specified torque; Separate field high-current wiring from low voltage signal cables.

Precautions for Use Verify field load current does not exceed per-channel rated value; Disconnect field power before wiring modification; Keep terminal area free from dust and conductive debris; Do not use corrosive cleaning solvent on plastic housing; Inspect screw terminal tightness during regular cabinet maintenance.