3. Product Specification Manual

3.1 Basic Parameters

• Part Number: P0916AC

• Type: High Power Rack AC-DC Power Supply Module

• Manufacturer: Foxboro (AVEVA / Schneider Electric)

• Applicable System: I/A Series DCS Distributed Control System

• Core Function: AC-DC conversion, high-power 24VDC rack power supply, dual-module redundant backup

• Input Voltage: 100–240V AC universal wide-range mains

• Rated DC Output: Regulated 24VDC

• Max Output Power: 450W

• Protection Class: IP20

• Housing Material: Die-cast aluminum alloy with enlarged heat sink

• Net Weight: 0.62kg

• Installation: Vertical slot mounting inside standard 19-inch industrial control cabinet

• Compatible Hardware: All P0914 series backplanes, controllers, FCM communication modules, FBM I/O modules, P0915DX / P0915FB / P0915FC terminal bases

3.2 Electrical Performance

• Output Voltage Regulation: ±0.4% voltage stability across full load range

• Output Ripple & Noise: ≤100mV peak-to-peak

• Redundancy Mode: Dual-module parallel hot standby with automatic balanced load sharing

• Fault Switching Characteristic: Instant seamless transfer without DC voltage fluctuation

• Input Filter: Multi-level LC EMI filter to block grid electromagnetic interference

• Cooling Method: Enhanced natural convection passive heat dissipation, fanless design for ultra-low failure rate

3.3 Maintenance & Diagnostic Functions

• Hot Swap Capability: Online plug-and-play without cutting off rack AC input power

• Real-time On-board Diagnosis: Monitor AC input loss, DC overload, output short circuit, internal over-temperature and circuit faults

• LED Status Indication: Steady green = normal full-load operation; flashing red = equipment fault alarm

• Parallel Compatibility: Direct parallel installation without extra configuration software for redundant power architecture

• Load Adaptability: Stable operation under mixed heavy loads of communication, analog and digital I/O modules

3.4 Environmental Technical Specifications

• Operating Temperature: 0℃ ~ +60℃

• Storage Temperature: -40℃ ~ +85℃

• Relative Humidity: 5% ~ 95% non-condensing

• Dust Resistance: Meet ISA S71.04 Class G3 industrial dust environment standard

• Vibration Resistance: Pass IEC60068 industrial anti-vibration durability tests

• Industrial Certifications: CE, UL global industrial safety certification

3.5 Complete Built-in Safety Protection Circuits

1. Overvoltage protection: Automatic DC output cut-off when exceeding voltage threshold to protect all rack control hardware

2. Overcurrent & short-circuit protection: Fast current limiting shutdown upon output short-circuit failure

3. Over-temperature protection: Power derating first, full shutdown when critical temperature threshold is reached

4. Reverse AC input polarity protection to prevent module burnout from miswiring

5. Input surge absorption circuit to resist transient lightning and grid voltage spikes

3.6 Step-by-Step Installation Instructions

1. Vertically insert P0916AC power supply module into dedicated power slot of P0914 series rack backplane in standard 19-inch control cabinet;

2. Route 100–240V AC mains cable to the rear input terminal block, fasten all wiring terminals securely to avoid loose contact;

3. For redundant power configuration: Install two P0916AC modules in adjacent power slots to enable automatic load-sharing backup;

4. Verify all controllers, communication cards and I/O modules are fully locked into backplane slots;

5. Switch on AC mains power, observe front LED indicator: steady green light indicates stable 24VDC power supply for the entire rack;

6. Maintenance operation: Directly hot-swap faulty P0916AC module without powering down the whole rack, the standby unit continuously supplies power to avoid system interruption.

4. Application Fields

1. Large integrated petrochemical, oil refining and natural gas processing plants

2. Fine chemical, pharmaceutical and bulk chemical raw material automated production complexes

3. Super-large thermal power plants, hydropower stations, wind and photovoltaic centralized new energy power stations

4. Steel smelting, non-ferrous metal metallurgy heavy industrial parks with complex interlock control

5. Cement group factories, coal mining and mineral processing plants with multi-workshop centralized control cabinets

6. Large pulp, papermaking and food manufacturing industrial parks

7. Municipal regional sewage treatment bases and large waste incineration power plants

8. Large industrial park central heating stations, distributed HVAC and heat exchange automatic control systems

Information Verification Note

• Confirmed fixed facts: P0916AC is high-power 450W 24VDC rack power supply for I/A Series DCS, 100–240V wide AC input, fanless passive cooling, hot swappable, dual redundant parallel load sharing, fully compatible with all P0914 series hardware, G3 dust resistant; higher power rating than P0916AA (300W).

• Unverified content: Original factory complete electrical test datasheet, customized explosion-proof versions, low-temperature special industrial variants, which require official Foxboro hardware manual for cross-verification.