3. Product Specification Manual

3.1 Basic Parameters

• Part Number: P0916AQ

• Product Type: Fan-Cooled High-Power AC-DC Redundant Rack Power Supply

• Manufacturer: Foxboro (AVEVA / Schneider Electric)

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

• Core Function: High-capacity AC-DC conversion, 600W stabilized 24VDC rack power, dual hot standby redundancy for fully loaded large I/O racks

• AC Input Range: 100–240V AC universal wide mains (50/60Hz)

• Regulated DC Output: 24VDC

• Maximum Output Power: 600W

• Cooling Mode: Temperature-variable speed DC cooling fan with fan fault detection

• Protection Class: IP20

• Housing Material: Heavy-duty die-cast aluminum alloy extended heat sink

• Net Weight: 0.78kg

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

• Compatible Hardware: All P0914 series backplanes, P0914WP controllers, P0914YM / P0914YZ FCM communication modules, full FBM analog/digital/HART I/O modules, P0915DX / P0915FB / P0915FC terminal blocks

3.2 Core Electrical Performance

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

• Output Ripple & Noise: ≤120mV peak-to-peak

• Redundancy Operation: Dual-module parallel hot standby with balanced automatic current sharing

• Fault Transfer Characteristic: Zero interruption, no output voltage sag during single unit failure

• EMI Suppression: Multi-level active + passive LC filter to block grid spikes and conducted electromagnetic interference

• Fan Control Logic: Fan runs at low speed under light load; ramps up speed at high temperature; built-in fan stall/fault alarm

3.3 Maintenance & Diagnostic Functions

• Hot Swap Support: Online plug-and-play replacement without cutting rack AC input power

• Comprehensive On-board Self-Diagnosis: Detect AC input loss, input voltage anomaly, DC overload, output short circuit, internal over-temperature, cooling fan stall/fault, internal hardware failure

• LED Status Definition: Steady green = normal full-load operation; Flashing red = fault alarm; Amber = fan low-speed high-temperature warning

• Redundancy Configuration: Direct parallel installation, no extra software setup required

• Load Adaptability: Designed for dense mixed loads including dozens of TC/RTD/HART analog input/output and digital interlock modules

3.4 Environmental Technical Specifications

• Operating Temperature Range: 0℃ ~ +60℃ (full 600W output maintained up to 55℃; power derating above 55℃)

• Storage Temperature Range: -40℃ ~ +85℃

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

• Dust Resistance: Conforms to 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 Full Built-in Safety Protection Circuits

1. AC input overvoltage/undervoltage lockout protection to prevent damage to downstream DCS hardware

2. Output overvoltage protection: Instant DC output cut-off on abnormal voltage surges

3. Overcurrent & short-circuit fast current limiting protection for field signal loops

4. Multi-stage over-temperature protection: Fan speed ramp → power derating → full shutdown at critical threshold

5. Reverse AC input polarity protection to avoid module burnout from miswiring

6. Input transient surge absorption circuit to suppress lightning and grid switching voltage spikes

7. Independent fan fault protection: Trigger alarm and power derating if cooling fan stalls

3.6 Step-by-Step Installation Instructions

1. Vertically insert P0916AQ high-power power supply into dedicated power slot of P0914-series rack backplane in standard 19-inch cabinet;

2. Route 100–240V AC mains cable to rear input terminal block, fully tighten terminals to eliminate loose contact;

3. Deploy two P0916AQ modules in adjacent power slots to implement redundant high-capacity power backup architecture;

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

5. Switch on AC mains supply; cooling fan activates at low speed, front steady green LED confirms stable 24VDC full-power output for the entire heavy-load rack;

6. Maintenance operation: Hot-swap faulty P0916AQ directly without rack power shutdown; standby unit delivers full rated power continuously to eliminate production loop interruption.

4. Application Fields

1. Large integrated petrochemical, crude oil refining and natural gas liquefaction plants with multi-row full I/O cabinets

2. Large-scale fine chemical, pharmaceutical and bulk chemical raw material centralized automation control buildings

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

4. Large steel smelting, blast furnace, continuous casting and non-ferrous metal heavy metallurgy industrial parks

5. Group cement plants, large coal mines and mineral processing complexes with dozens of interlock control cabinets

6. Large pulp, papermaking, food & beverage mass manufacturing integrated production bases

7. Regional municipal sewage treatment hubs, large waste incineration power plants and flue gas monitoring central control rooms

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

Information Verification Note

• Confirmed fixed facts: P0916AQ is top-tier 600W AC-input power supply for I/A Series DCS, temperature-controlled fan cooling with fan fault detection, hot swappable, dual redundant parallel load sharing, full compatibility with all P0914 series hardware, ISA G3 dust resistant; uniquely high power and forced air cooling vs fanless lower-wattage P0916AA/AC/AE/AL/AM DC/AC power supplies.

• Unverified content: Original factory full electrical load test report, customized explosion-proof variants, low-temperature special industrial versions, which require cross-verification via official Foxboro hardware operation manual.