Product Details
The Honeywell FS-SDO-0824, also cataloged as the FS-SDO-0824 Safe Digital Output Module, operates as a dedicated hardware component for driving safety-critical discrete actuators and field loads within Safety Manager platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | FS-SDO-0824 |
| Brand | Honeywell |
| Origin | Netherlands |
| Weight | 3 kg (Shipping Weight) |
| Operating Temp | -0 to 60 deg C |
| Power Consumption | 5 VDC at 25 mA (backplane), 24 VDC internal at 25 mA, 24 VDC external at 70 mA (without output load) |
| Module Coating | Non conformal coated |
| Channel Count | 8 safe digital output channels |
| Output Type | 24 VDC solid-state source, short-circuit proof |
| Max Output Current | 550 mA |
| Max Lamp Load | 120 mA (2.9 W) |
| Max Load Capacitance | 1 uF |
| Output Voltage Drop | < 2.0 VDC at 500 mA |
| Off-State Leakage Current | < 0.1 mA |
| Watchdog Input Current | 8 mA |
Channel-to-Channel Isolation and Fail-Safe Output Execution
The FS-SDO-0824 integrates solid-state output drivers engineered for high-integrity loop execution in safety instrumented functions. Each channel features internal current monitoring and short-circuit protection capable of safely handling up to 550 mA continuous inductive or resistive load currents. Channel-to-channel isolation barriers protect system-side control electronics against external cross-talk and transient field overvoltages. Integrated diagnostic circuits execute continuous test pulses to verify solid-state switch integrity without interrupting line power or de-energizing connected field actuators, enforcing a deterministic fail-safe state upon detection of internal hardware anomalies.
Frequently Asked Questions
Q: Does the non-conformal coated construction of the FS-SDO-0824 affect its environmental rating?
A: Non-conformal coated modules require mounting inside sealed, temperature-controlled enclosures rated IP54 or higher to protect internal electronic traces from conductive dust, corrosive gas, and moisture condensation.
Q: How does the output circuit behave during a field-side short-circuit condition?
A: The solid-state output stage is self-protecting and short-circuit proof. Overcurrent conditions are limited internally, triggering channel diagnostic faults while maintaining system backplane isolation.
Q: What are the primary power rail demands required to operate the module?
A: The module draws 25 mA from the 5 VDC backplane rail, 25 mA from the internal 24 VDC rail, and 70 mA (base load excluding output current) from the external 24 VDC field supply.
Field Installation Guidelines
- Mount the module chassis firmly into the designated rack slot inside a dust-free and condensation-free IP54 control cabinet.
- Verify that field supply wiring to the 24 VDC external power terminals maintains correct voltage polarity and adequate fusing before applying bus power.
- Keep field output cables physically segregated from high-voltage AC cables and variable frequency drive outputs in separate wire trunks to prevent inductive noise coupling.
- Maintain proper cabinet grounding by connecting shield wires directly to the system protective earth (PE) bus bar.
- Ensure field-side capacitive loads do not exceed the maximum rating of 1 uF per channel to prevent excessive turn-on surge current.
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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Safety Relays in Industrial Automation: Fundamentals, Design Standards, and Fail-Safe Architecture
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