3. Product Specification Manual

3.1 Basic Parameters

• Part Number: P0916AA

• Product Type: Rack DC Power Supply Module

• Manufacturer: Foxboro (AVEVA / Schneider Electric)

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

• Core Function: AC-DC conversion, stable 24VDC power supply for rack controllers, I/O and communication hardware, redundant backup power

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

• Rated DC Output: 24VDC regulated

• Max Output Load Capacity: 300W

• Protection Class: IP20

• Housing Material: Die-cast aluminum alloy

• Net Weight: 0.55kg

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

• Compatible Hardware: Full P0914 series backplanes, controllers, FCM communication modules, FBM I/O modules, P0915DX/FB/FC terminal assemblies

3.2 Electrical Performance

• Output Regulation Precision: ±0.5% full load voltage stability

• Ripple & Noise: ≤120mV peak-to-peak

• Redundancy Mode: Dual-module parallel hot standby redundant power supply

• Switchover Performance: Seamless load switching with no output voltage drop during single module failure

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

• Cooling Mode: Natural convection heat dissipation, no built-in fan for low failure rate

3.3 Maintenance & Diagnosis Features

• Hot Swap Support: Online plug/unplug without powering off the entire control rack

• On-board Real-time Diagnosis: Detect AC input loss, DC overload, short-circuit, over-temperature, internal circuit failure

• LED Status Indicators: Green = normal operation; Red = fault alarm

• Parallel Load Sharing: Automatic balanced current distribution between dual redundant power modules

• Configuration Compatibility: No extra software setup required for redundant parallel operation

3.4 Environmental Technical Index

• Operating Temperature: 0℃ ~ +60℃

• Storage Temperature: -40℃ ~ +85℃

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

• Dust Resistance: Comply with ISA S71.04 Class G3 harsh industrial dust environment

• Vibration Resistance: Meet IEC60068 industrial anti-vibration test standards

• Industrial Certifications: CE, UL safety certification

3.5 Complete Built-in Safety Protection

1. Overvoltage protection: Automatically cut off DC output when voltage exceeds threshold to protect all rack modules

2. Overcurrent & short-circuit protection: Instant current limiting shutdown for output short faults

3. Over-temperature protection: Power derating and automatic shutdown under abnormal high temperature

4. Reverse AC input polarity protection to avoid module burnout from wrong wiring

5. Input surge suppression to resist lightning transient grid voltage spikes

3.6 Step-by-Step Installation Instructions

1. Vertically insert P0916AA power module into dedicated power slot of P0914 series rack backplane in standard 19-inch control cabinet;

2. Connect 100–240V AC mains input cable to the power terminal on module rear, lock wiring terminals tightly;

3. For redundant setup: Install two P0916AA modules in parallel slots to realize automatic load sharing backup;

4. Confirm all controllers, I/O cards and communication modules are fully inserted into rack backplane slots;

5. Switch on AC mains supply, observe front LED: steady green light means normal stable 24VDC output for the whole rack;

6. For maintenance: Hot-swap faulty power module directly without cutting off rack power supply, redundant backup maintains continuous system operation.

4. Application Fields

1. Petrochemical, crude oil refining and natural gas integrated processing plants

2. Fine chemical, pharmaceutical and basic chemical raw material automated production workshops

3. Large thermal power plants, hydropower stations, wind and photovoltaic new energy power stations

4. Steel smelting, non-ferrous metal metallurgy heavy industrial parks with unstable grid conditions

5. Cement rotary kiln, coal mining and mineral processing group factories

6. Pulp, papermaking and large-scale food manufacturing industrial parks

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

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

Information Verification Note

• Confirmed fixed facts: P0916AA is I/A series rack 300W 24VDC redundant power supply, 100–240V AC wide input, natural convection cooling, hot swappable, parallel load sharing, full P0914 series hardware compatibility, G3 dust resistant.

• Unverified content: Original factory complete electrical test datasheet, customized high-power extended variants, explosion-proof power supply versions, which need official Foxboro hardware manual for cross-verification.