Product Details
The Honeywell FS-TSRO-0824, also cataloged as the FS-TSRO-0824 Digital Output Field Termination Assembly, operates as a dedicated hardware component for switching high-power discrete field loads and providing physical contact isolation within Safety Manager and FSC systems.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | FS-TSRO-0824 |
| Brand | Honeywell |
| Origin | Netherlands |
| Weight | 2 kg |
| Dimensions | 300 x 70 x 60 mm (L x W x H) |
| Operating Temp | -0 to 60 deg C |
| Power Consumption | Typically 40 mA at 24 VDC per active channel |
| Safety Class | AK1-6 |
| Approvals | CE, UL, TÜV approvals pending |
| Nominal Input Voltage | 24 VDC |
| Max Input Voltage | 36 VDC |
| Relay Pick-up Voltage | 19.2 VDC |
| Output Channels | 8 relay contact outputs |
| Max Switched Voltage | 250 VAC / 250 VDC |
| Max Output Current | 5 A (fused per channel) |
| Min Output Current | 1 mA at 5 V |
| Max Switched Load | 1250 VA / 150 W |
Galvanic Isolation and Safety Loop Contact Execution
The FS-TSRO-0824 provides channel-to-channel and field-to-logic galvanic isolation through heavy-duty electromechanical relays. Configured for Safety Integrity Level (SIL) applications up to safety class AK1-6, the module provides isolated dry-contact outputs capable of handling up to 250 VAC/VDC switching loads. The discrete relay driver circuit enforces predictable contact open/close states under system fault conditions, preventing back-EMF voltage transients from entering the central controller backplane or safety logic solver cards. Integrated individual fuses protect each output channel against external short-circuit overcurrent events.
Frequently Asked Questions
Q: What is the minimum switching threshold required to maintain clean contact closure across the relay outputs?
A: The minimum output load specification is 1 mA at 5 V. Operating below this current and voltage limit may lead to inconsistent contact resistance due to lack of wetting current.
Q: How is individual output channel circuit protection handled on the assembly?
A: Each of the 8 output channels features a dedicated inline fuse rated to interrupt overcurrent conditions above 5 A, isolating external field shorts before causing damage to the internal trace geometry or relay contacts.
Q: What is the maximum permitted input voltage to ensure reliable coil actuation without thermal overstress?
A: While the nominal logic input drive voltage is 24 VDC with a pick-up voltage threshold of 19.2 VDC, the maximum continuous allowable input voltage is 36 VDC.
Field Installation Guidelines
- Mount the assembly securely on standard TS35 DIN rail inside an IP54 or better grounded metallic enclosure to ensure adequate mechanical stability and environmental protection.
- Route high-voltage AC/DC field wiring away from low-voltage DC logic signaling lines in separate wiring ducts to avoid electromagnetic interference and inductive coupling.
- Torque all field screw-terminal connections to recommended manufacturer specifications (typically 0.5 to 0.6 Nm) to ensure vibration-resistant electrical continuity.
- Verify that field load currents do not exceed 5 A continuous per channel and that inductive loads are fitted with external suppression devices (snubbers for AC, flyback diodes for DC) across the field load terminals.
- Connect cabinet protective earth (PE) grounding wire directly to the module earth stud prior to applying power or field load voltage.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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Human-Machine Interface Design: Essential Guide to HMI Selection, Visualization, and Control System Integration
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Understanding Safety Relays in Industrial Automation: Architecture, Operation, and Functional Safety
Standard electromechanical relays provide basic electrical isolation between low-voltage control circuits and high-power output loads. A traditional switching relay features a magnetic coil driving mechanical Common (COM), Normally-Open (NO), and Normally-Closed (NC) contacts. However, standard relays pose severe functional risks when deployed in critical safety interlock circuits. High current inrush or mechanical wear can weld contacts together permanently. If contact welding occurs in an emergency stop circuit, pressing the button fails to halt hazardous machinery movements. Consequently, global functional safety standards prohibit standard relays for critical machine guarding functions.