Product Core Brief

• Model: SPS5710-2-LF 51198685-100
• Brand: Honeywell
• Series: Experion PKS / C-Series
• Core Function: Converts AC mains to regulated 24 VDC for critical C-Series controllers.
• Product Type: Redundant Power Supply Module
• Key Specs: 24 VDC @ 20 A | 85–264 VAC Input | Hot-Swappable
• Condition: New Original (New Surplus)

Product Introduction

The is a high-reliability C-Series power supply designed for the Experion PKS architecture. It accepts a wide 85–264 VAC input range and delivers a stable 24 VDC output to safely drive redundant controllers and I/O subsystems.

This unit features true hot-swap redundancy, allowing field technicians to replace a failed module without shutting down the backplane. The also integrates predictive diagnostics that communicate directly with C300 processors to flag capacitor degradation before it causes a system trip.

Honeywell SPS5710-2-LF

Key Technical Specifications

Quality Control Process (Engineer’s Perspective)

We don’t just box these and ship them. Here is our actual bench test workflow.

1. Incoming Verification: We verify the serial number against OEM records to ensure authenticity. A visual inspection checks for heat discoloration on the AC input terminals and ensures the DIN rail clip is intact.
2. Live Functional Test: We mount the unit in a live C300 test rack. We verify the 24 VDC output stability under load and confirm the backplane handshake completes without errors.
3. Electrical Parameter Test: We perform a 500 V Megger test between the AC input and DC output terminals. Insulation resistance must exceed 10 MΩ. Ground continuity is verified.
4. Firmware Verification: We read the module’s internal diagnostic firmware revision via the PKS service port. We photograph the DIP switch settings to ensure they match factory defaults before shipping.
5. Final QC & Packaging: The module is sealed in an anti-static bag with silica gel. A QC sticker showing the test date and technician initials is applied to the exterior.

Honeywell SPS5710-2-LF

Replacement Pitfall Guide

Field replacements on safety systems are unforgiving. Watch out for these traps.

1. Firmware Mismatch: ❗ Critical. A brand-new might have a newer diagnostic firmware revision than your existing CPU. The Experion controller may flag a configuration mismatch. Always check your system’s allowed firmware matrix before installing.
2. DIP Switch / Jumper Misconfiguration: This module uses hardware addressing for backplane slot ID. If you pull the old card and forget to transfer the binary address switches to the new one, the CPU will report a missing power supply.
3. Terminal / Cable Incompatibility: Inspect the AC input wiring before plugging in the new card. Ensure all L, N, and PE connections are torqued properly; a loose neutral can cause intermittent brownouts that mimic module failure.
4. Power Supply Mismatch: Verify your external 24 VDC field power supply has at least 20% headroom over the total calculated load. This module draws current for its own internal monitoring circuits.
5. ESD Damage: Safety modules are highly sensitive to electrostatic discharge. Always wear a grounded wrist strap when handling the bare PCB. I’ve seen modules fail bench testing because they were handled on a dry winter day without protection.

Keep these in mind and you’ll cut 90% of rework time.

Compatibility Matrix & Benchmarks

Compatibility

• Honeywell Rev A → Rev B : Direct Replacement — Verify firmware compatibility with C300 CPU.
• Honeywell SPS5713 → 51198685-100 : Direct Replacement — Verify current draw requirements.

Benchmarks

• Power-On to Ready: < 3 s (from AC applied to backplane OK signal)
• Hot-Swap Transfer Time: 0 ms (zero backplane interruption during replacement)

Need the DIP switch setting chart for the ? I can pull up the binary address table so you don’t have to guess during the swap.