FOXBORO FPS400-24

Description

1. Product Overview

2. Product Parameters

2.1 Core Power Supply Specifications

• Input Voltage: 100-240V AC (50/60Hz), 48-60V DC (optional dual input)
• Output Voltage: 24V DC ±1% (regulated)
• Output Current: 40A total (2 x 20A hot-swappable modules, N+1 redundancy)
• Output Power: 960W (40A × 24V)
• Redundancy: N+1 (automatic load sharing, seamless switchover <1ms)
• Ripple & Noise: <50mV p-p (filtered for sensitive DCS/SIS components)

2.2 Electrical & Protection Features

• Protection Mechanisms: Overvoltage (OVP), overcurrent (OCP), short-circuit (SCP), over-temperature (OTP) protection
• Efficiency: >94% (typical at full load, energy-efficient)
• Power Factor Correction (PFC): Active PFC (PF >0.95 at full load)
• Isolation: 3000V AC input to output, 1500V AC output to ground
• Monitoring: Output voltage/current monitoring, module status, fault alerts (via dry contact or Ethernet)

2.3 Environmental & Mechanical Parameters

• Operating Temperature: -20°C to +70°C (industrial grade)
• Storage Temperature: -40°C to +85°C
• Relative Humidity: 5% to 95% (non-condensing), IP20 protection (rack-mounted)
• Vibration Resistance: 5-500Hz, 2g (IEC 60068-2-6)
• Shock Resistance: 30g (11ms half-sine wave, IEC 60068-2-27)
• Form Factor: 19” rack-mount (2U height), compatible with I/A Series chassis
• Weight: 8.5kg (dual module assembly)

2.4 Certifications & Compliance

• Industry Certifications: CE, UL/cUL 61010-1, ATEX Zone 2, IECEx, RoHS
• Safety Compliance: IEC 61508 (SIL 2 rated for power supply to safety systems)
• EMI/EMC Compliance: EN 55032 (Class A), EN 61000-6-2 (industrial immunity)

3. Advantages & Features

1. N+1 Redundant Design: FOXBORO FPS400-24 features dual hot-swappable power modules with <1ms switchover, ensuring zero power interruption if one module fails—critical for 24/7 DCS/SIS operations in refineries, power plants, and pharmaceutical facilities.
2. High Efficiency & Energy Savings: >94% efficiency and active PFC reduce energy consumption and heat generation, lowering operational costs and extending the lifespan of FOXBORO FPS400-24 and adjacent DCS components.
3. Comprehensive Protection: OVP, OCP, SCP, and OTP protection safeguard FOXBORO FPS400-24 and connected DCS/SIS modules from electrical faults, preventing costly equipment damage and unplanned downtime.
4. Remote Monitoring & Diagnostics: Built-in dry contact and Ethernet monitoring enable real-time tracking of output voltage/current and module status, allowing operators to detect faults remotely and schedule maintenance proactively.
5. Plug-and-Play Integration: FOXBORO FPS400-24 is pre-configured for I/A Series chassis, eliminating complex wiring and configuration—hot-swappable modules can be replaced without powering down the chassis, reducing maintenance downtime by 100%.

4. Application Fields & Cases

4.1 Application Fields

• Petrochemical: DCS/SIS power for refinery control racks, chemical plant safety systems, pipeline monitoring stations
• Power Generation: Turbine control system power, boiler management DCS racks, renewable energy (solar/wind) inverter control
• Water/Wastewater: Treatment plant DCS power, pump station control systems, remote monitoring unit power
• Pharmaceutical: SIL 3 safety system power, batch process control racks, cleanroom automation equipment

4.2 Typical Cases

1. Refinery DCS Rack Power: A Middle Eastern oil refinery deployed 25 FOXBORO FPS400-24 units to power 50 I/A Series DCS racks (FCP280 controllers, FBM231 communication modules). N+1 redundancy prevented a complete rack outage during a module failure, ensuring continuous operation of distillation units and avoiding $1 million in lost production.
2. Pharmaceutical SIL 3 System Power: A European biotech plant used FOXBORO FPS400-24 to supply power to SIL 3 safety systems (FBMSVH voting modules, FBM242 AI modules) for sterile drug production. The unit’s SIL 2 rating and clean power output ensured compliance with FDA and EU GMP regulations, passing a regulatory audit with zero findings.
3. Water Treatment Plant Control Power: A municipal water treatment facility integrated FOXBORO FPS400-24 into its I/A Series DCS to power pump control and filtration system modules. Remote monitoring detected a failing power module, allowing proactive replacement during off-peak hours and preventing a 4-hour outage that would have disrupted water supply to 150,000 residents.

5. Competitive Comparison

6. Selection Suggestions & Precautions

6.1 Selection Suggestions

1. Redundant Power Requirements: Choose FOXBORO FPS400-24 for DCS/SIS racks requiring uninterrupted power (refineries, pharmaceutical plants)—N+1 redundancy and hot-swappable modules eliminate single points of failure.
2. High-Load DCS Applications: Opt for FOXBORO FPS400-24 if your rack requires >30A of 24V DC power (e.g., large I/O module banks, redundant controllers)—40A total output meets high-power demands.
3. Safety System Compatibility: Select FOXBORO FPS400-24 for SIL 2/SIL 3 safety systems—its SIL 2 rating and clean power output ensure compliance with IEC 61508 standards.

6.2 Precautions

1. Installation Guidelines:
   • Install FOXBORO FPS400-24 in a 19” rack or I/A Series chassis with adequate ventilation (operating temperature <70°C) to prevent overheating.
   • Connect dual input power sources (e.g., mains + UPS) to maximize redundancy—avoid relying on a single input for critical applications.
2. Configuration Notes:
   • Enable remote monitoring (dry contact or Ethernet) during setup to track module status and output parameters—configure fault alerts to trigger notifications for proactive maintenance.
   • Verify load sharing between the two power modules (50% each at full load) via the unit’s front-panel display to ensure N+1 redundancy is active.
3. Troubleshooting:
   • For output voltage fluctuations: Check input power stability and load balance between modules—replace a faulty module if voltage deviates >1% from 24V.
   • For over-temperature alarms: Improve rack ventilation or reduce load on the unit—FOXBORO FPS400-24 will shut down non-critical loads to protect itself and connected components.
4. Maintenance:
   • Replace power modules every 5 years (per manufacturer recommendations) to maintain redundancy reliability—use only Foxboro-authorized replacement modules to avoid voiding the warranty.
   • Perform quarterly output voltage/current checks and clean air filters to prevent dust buildup, which can cause overheating and reduced efficiency.

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