Honeywell FS-TDO-1624 Safety Manager Digital Output Module

Configured for safe digital output control in Honeywell Safety Manager platforms, the Honeywell FS-TDO-1624 (FS-TDO-1624 Safe Digital Output Module) provides direct physical/electrical execution.

Suffix Breakdown & Model Matrix

The suffix structure for the 1624 digital output field termination assembly indicates coating options and hardware configuration:

• FS-TDO-1624: Standard Non-Conformal-Coated Fail-Safe Digital Output Module / Field Termination Assembly.
• FC-TDO-1624: Conformally Coated Fail-Safe Digital Output Module / Field Termination Assembly for harsh environmental isolation.

Hardware Specifications

Safety-Critical Channel Isolation & Loop Execution

The module incorporates robust channel-to-channel galvanic isolation alongside dedicated internal diagnostic circuits to manage 24 VDC inductive field loads. The output architecture integrates directly with the Honeywell FSC/Safety Manager safety loop execution layer, enforcing safe-state output drops when system interlocks trigger. Over-current protection thresholds prevent thermal degradation of individual driver channels, while onboard isolation barriers isolate transient voltage spikes on field cabling from affecting backplane communication across the SIC-C-12 interconnection bus.

Frequently Asked Questions

Q: How do you establish connection between the FS-TDO-1624 module and the Safety Manager controller architecture?

A: You connect the module via the SIC-C-12 system interconnection cable to the corresponding controller output card, while routing external field wiring directly into the onboard screw terminals.

Q: What wire gauge and terminal tightening torque does the field terminal block support?

A: The screw terminals accept solid or stranded conductors with a maximum wire cross-section of 2.5 mm2 (AWG 14). You must strip conductors to 7 mm (0.28 in) and torque the terminal screws to exactly 0.5 Nm (0.37 ft-lb).

Q: Can you substitute the FS-TDO-1624 with the FC-TDO-1624 in corrosive environments?

A: Yes. The FC-TDO-1624 provides identical electrical execution and physical form factor while adding conformal coating to protect internal circuitry against atmospheric contaminants and moisture.

Field Installation Guidelines

Mount the unit onto a standard TS32 or TS35 x 7.5 DIN rail within a grounded metallic enclosure. Ensure the mounting rail section spans at least 91 mm to allow firm engagement of the snap-in footings. Strip field conductors to 7 mm and secure them into the screw terminals using a calibrated torque screwdriver set to 0.5 Nm. Connect the SIC-C-12 interconnection cable securely to the system interface header before supplying 24 VDC power to the loop. Land all field cable shielding directly on the cabinet Earth ground bar to ensure optimal noise immunity and surge suppression across all 16 digital output loops.