System Core Architecture & Three Deployment Modes

The AC800PEC series adopts a fully modular hardware design equipped with a unified backplane bus and isolated fiber PowerLink transmission. Three scalable architectures are available to match projects of different capacities and layout requirements.

1.1 Compact Integrated Architecture

• Composition: Single PPD113 CPU module with integrated basic high-speed onboard I/O, no additional expansion rack required
• Applicable Scenarios: Small power converters, compact cabinet subsystems, equipment with limited installation space
• Advantages: Simplified wiring, lower overall cost, plug-and-play structure, independent operation without extra backplane carriers

1.2 Standard Separate I/O Architecture

• Composition: Independent main CPU module plus multiple high-speed I/O modules mounted on BP series backplane
• Applicable Scenarios: Standard single-cabinet power conversion equipment, medium-capacity wind turbine full-power converters
• Advantages: Flexible I/O expansion capability, independent module replacement for faulty units, convenient on-site maintenance and troubleshooting

1.3 Large Distributed Modular Architecture

• Composition: Multi-set redundant CPU racks and multiple remote slave I/O racks interconnected via bidirectional optical PowerLink (max 36 optical links)
• Applicable Scenarios: Large-scale energy storage stations, medium-voltage drive groups, generator excitation systems, multi-parallel converter clusters
• Advantages: Long-distance anti-electromagnetic interference transmission, full redundant hot-backup configuration, synchronous coordination of multiple controllers

2. Full Series Module Classification & Detailed Selection Parameters

All AC800PEC modules support DIN rail mounting, passive cooling without cooling fans, wide operating temperature range from -40℃ to +75℃, standard DC24V power supply, and comply with CE & UL industrial safety certifications. The complete product lineup is divided into six core categories: CPU Processor Modules, BP Backplane Carriers, PEC Power Supply Modules, High-Speed Measurement I/O Modules, Power Drive Pulse Interface Modules, and Communication Expansion Modules.

2.1 Main CPU Processor Module (System Core Calculation Unit)

Model Code	Core Hardware Configuration	Core Control Performance	Typical Application Matching
PP D113 (PPD113)	750MHz PowerPC 750FX CPU + independent FPGA accelerator; 64MB SDRAM, 16MB Flash; 2×Ethernet, RS232/422, multi-channel optical PowerLink	Minimum control cycle 25μs; support non-redundant single controller system; integrated basic status I/O	Medium & small converters, single-unit energy storage PCS, general industrial power electronic equipment
PCD235B101	Enhanced dual-core platform, large-capacity FPGA chip, redundant optical link interfaces, built-in hot-switch fault logic	Nanosecond-level pulse synchronization; CPU redundant hot backup; multi-layer complex closed-loop control algorithm support	UNITROL generator excitation systems, high-power PCS6000 energy storage, medium-voltage frequency converters
PP D539	Multi-processor collaborative extended version, multiple groups of isolated Ethernet communication ports	Multi-controller parallel linkage, large-capacity real-time data uploading and caching	Wind farm central control cabinets, multi-parallel energy storage cluster master control stations

2.2 BP Series Backplane Carrier Modules

BP backplanes act as the bus carrier for CPU and expansion modules with standardized slot layout compatible with all AC800PEC series hardware. Two mainstream specifications for selection:

• 4-slot short BP backplane: For compact single cabinet with small I/O quantity layout
• 12-slot long BP backplane: For large-capacity mixed layout of CPU, power supply, communication and multi-group I/O modules

Core feature: Built-in bus power distribution circuit, independent slot fault isolation function, compatible with dual redundant power supply access mode.

2.3 PEC800-PS Power Supply Modules

Responsible for stable power distribution of the entire control rack, two standard models for different load requirements:

1. PEC800-PS Standard Power Supply
   Input range DC9~36V wide voltage, stable 24V output for CPU and I/O modules; rated power 150W, suitable for single CPU rack equipped with less than 8 I/O modules.
2. PEC800-PS-HP High-Power Redundant Power Supply
   Dual redundant power input circuit, seamless automatic switching under single-channel power failure; 300W output power, specially designed for multi-module racks and redundant CPU control systems.

Selection Reminder: Large-capacity control cabinets must adopt dual redundant power supply configuration to meet power grid anti-interference and uninterrupted operation requirements.

2.4 High-Speed Measurement & Universal I/O Modules

Specialized sampling units for converter voltage, current, temperature and switch signals, equipped with full optical isolation to suppress strong electromagnetic interference from power units.

• UA D149 Combi IO Mixed Fast I/O Module

  Integrated high-speed analog input + digital DI/DO channels; sampling cycle ≤50μs. Main functions: Grid voltage sampling, DC bus voltage detection, auxiliary contact signal collection, equipment fault feedback. Matching scenario: Standard configuration for most conventional power converters.

• UA D140 PECMI Precision Measurement Module

  High-precision dedicated current & voltage sampling module with 0.1% measurement accuracy; direct CT/PT signal access supported. Matching scenario: Grid-connected closed-loop control equipment including energy storage PCS, SVC static var compensators, APF active power filters.

• GFD563A102 Excitation Dedicated I/O Module

  Optimized circuit design for generator rotor excitation current sampling and regulation output signals. Matching scenario: Full set of UNITROL series generator excitation control systems.

2.5 Power Drive Pulse Interface Modules

Dedicated hardware for IGBT and thyristor power unit drive and high-speed PWM trigger pulse transmission, with hardware fast protection logic integrated inside each module.

• GD D160 PEBB IGBT Drive Module

  Dual-arm PWM pulse output channel, hardware short-circuit protection response time less than 1μs. Matching scenario: Two-level & three-level medium-voltage converters, wind power full-power converters.

• DD C779 PINT Thyristor Pulse Interface Module

  Phase-shift trigger pulse output for silicon controlled rectifiers. Matching scenario: DC speed regulation systems, rectifier excitation equipment, industrial electrolysis power supplies.

2.6 Communication Expansion Modules

Realize data interconnection between AC800PEC controllers, upper SCADA/HMI, third-party PLCs and remote distributed slave I/O racks.

• PCD230A CIO Communication I/O Module

  Dual protocol support for PROFIBUS-DP and Modbus RTU/TCP; wide voltage DC9~36V, -40℃~+75℃ working range. Serves as optical PowerLink slave interface to expand remote distributed I/O racks.

• PEC800-CO Universal Communication Module

  Two independent isolated Ethernet ports, compatible with EtherCAT, OPC UA and IEC60870-5 power industry communication protocols. Matching scenario: Wind farm centralized monitoring, energy storage station cloud platform data transmission.

• Anybus-S Plug-in Gateway Sub-module

  Optional fieldbus expansion including Profinet, DeviceNet and CANopen; pluggable sub-card design allows flexible on-site protocol replacement without changing main hardware.

  
  

3. Core Technical Advantages for Module Selection Reference

1. Three-Tier Real-Time Task Partition Mechanism
   • Ultra-fast hardware task (FPGA): 25ns pulse generation, hardware overcurrent & overvoltage protection, zero occupation of CPU computing resources
   • High-priority closed-loop task (CPU): 25~100μs cycle for current and voltage closed-loop control
   • Auxiliary slow logic task (CPU, low priority): ≥1ms cycle for cooling system monitoring, fault data recording and HMI interaction
2. Full Optical Isolation PowerLink Transmission

   Fiber cables replace copper signal wires to completely isolate strong electromagnetic interference between power units and control cabinets, maximum transmission distance reaches 2000 meters, perfectly applicable for split cabinet layout of large power equipment.

3. Unified Control Builder M Software Platform

   All series modules support programming via Control Builder M, seamless docking with MATLAB/Simulink for automatic power electronic algorithm code generation; consistent configuration logic across all hardware modules shortens equipment design and debugging cycles.

4. High Adaptability to Harsh Industrial Environments

   Passive heat dissipation design eliminates fan failure risks; meets IEC60068 anti-vibration industrial standards, stable operation under wide temperature range, suitable for outdoor wind turbines, mobile traction equipment and underground mining converters.

4. Standard Step-by-Step Module Selection Process

Step 1: Confirm Application Type & Dynamic Control Requirements

• Low dynamic control demand (small rectifiers, auxiliary monitoring): PPD113 main controller + UA D149 universal mixed I/O
• High dynamic grid-connected control (energy storage PCS, APF active filters): PCD235 enhanced CPU + UA D140 precision measurement module
• Special generator excitation scenarios: Fixed matching of GFD563 dedicated excitation I/O + redundant power supply module

Step 2: Calculate Total I/O Points and Determine Rack Scale

Count analog sampling channels, PWM pulse drive channels, digital DI/DO switch signals in advance:

• Total I/O points ≤16: Compact integrated architecture, use CPU onboard I/O without BP backplane
• Total I/O points 16 ~ 64: Single short 4-slot BP backplane + standard PEC800-PS power supply
• Total I/O points >64 or remote split cabinet layout: Long 12-slot BP backplane + PCD230A communication slave module for distributed fiber expansion

Yiwu Beixun Automation Technology Co., Ltd mainly operates, Triconex, Woodward, Foxboro,Reliance, ABB, Allen-Bradley, Motorola, GE, Yaskawa, Bosch Rexroth, ACSO, YOKOGAWA, NI, ICS Triplex, Kollmorgen, Mitsubishi, MOOG, Emerson, B&R, SST, ALSTOM, EPRO, HIMA, HONEYWELL prosoft, AMAT and other products