FS-TSRO-0824 Honeywell Digital Output Field Termination Assembly

Configured for discrete relay output switching and high-current load execution in Honeywell Safety Manager systems, the Honeywell FS-TSRO-0824 (FS-TSRO-0824 Digital Output Field Termination Assembly) provides direct physical/electrical execution.

Hardware Specifications

4-20 mA HART Loop Protocol and Channel-to-Channel Isolation

The field termination module incorporates galvanic isolation barriers between the 24 VDC control side relay coils and output contacts, maintaining strict channel-to-channel isolation across all 8 switching channels. Physical isolation prevents high-voltage AC switching transients and inductive kickback on field output lines from coupling into sensitive 4-20 mA HART loop protocol analog input signals or backplane logic buses operating within adjacent chassis racks.

Frequently Asked Questions

Q: What protection is provided for individual output switching channels on the FS-TSRO-0824?

A: Each of the 8 output channels features an integrated 5 A fuse to protect relay contacts and field wiring from overcurrent conditions.

Q: What is the minimum activation threshold required for reliable relay coil energization?

A: The relay pick-up voltage is specified at 19.2 VDC, below which the relay contacts will remain in their de-energized shelf state.

Q: Can the FS-TSRO-0824 switch both AC and DC field loads?

A: Yes, the dry relay contacts support switching up to 250 VAC (1250 VA max) or 250 VDC (150 W max) per channel.

Field Installation Guidelines

• Mount the assembly on standard DIN rails within the control cabinet, ensuring vertical orientation to facilitate free convection cooling.
• Verify that field output load currents do not exceed the 5 A continuous channel rating prior to connecting field field wiring terminals.
• Connect inductive AC or DC loads with parallel suppressor elements (RC networks or flyback diodes) across field field contacts to suppress arc discharge and extend contact lifecycle.
• Maintain separate wire channels for 24 VDC control cables and high-voltage 250 VAC output wiring to prevent cross-talk and electromagnetic induction.