ABB AC800PEC Controller Unit

Module Feature

800PEC (AC800PEC) is ABB ControlIT series high-performance dedicated controller for power electronic control. It integrates high-speed DSP/FPGA core, and can run fast PWM, vector control, grid synchronization and fault protection algorithms with cycle time down to 100μs. It supports two development modes: standard IEC61131-3 programming via Control Builder M, and model-based design by MATLAB/Simulink auto-code generation. It adopts modular architecture, can be equipped with analog sampling, pulse output, encoder and digital I/O modules. High-speed optical communication interface is used for interconnection with PCS6000 medium voltage converters. It has strong anti-interference performance and is widely used in wind power converters, photovoltaic energy storage inverters, locomotive traction converters, HVDC light and metal rolling mill main drive systems.

Working principle

The controller samples voltage, current and position signals in real time, executes closed-loop control algorithm, outputs optical pulse signals to drive power semiconductor modules. It simultaneously completes slow process logic, interlock protection, data recording and upper communication tasks. When fault conditions such as overcurrent, overvoltage or overheating are detected, it quickly blocks drive pulses and sends fault information to HMI or SCADA system.

Onboard components

Main CPU & DSP control board, FPGA pulse logic board, high-speed optical communication interface, analog sampling module, digital I/O board, power supply unit, backplane bus.

LED indicators

Front LEDs indicate power, controller run status, fiber link, fault alarm and communication activity.

Hardware self‑diagnosis

Continuous self-diagnosis covers fiber link break, sampling channel anomaly, I/O fault, CPU watchdog, power supply abnormality and module mismatch. Fault codes and waveform records are stored internally.

Programming software

Control Builder M, MATLAB/Simulink with real-time workshop, used for algorithm modeling, logic programming, parameter download and oscilloscope data capture.

Electrical & Process Parameters

Model:800PEC Brand:ABB Device type:High Speed Power Electronic Controller Control cycle:Min 100μs Communication:Optical high-speed link, Ethernet, Profibus Function:Real-time control of medium and high power converters and electric drives

Mechanical & Structure

Mounting:Cabinet rack installation Protection class:IP20 Housing:Metal modular chassis

Environmental

Operating temperature:-10℃ ~ +60℃ Storage temperature:-40℃ ~ +85℃ Ambient humidity:5~95% non‑condensing Certification:CE, IEC compliant Status:ABB original power control spare

Installation

Install the controller in the converter cabinet, connect optical fiber strictly following channel number. Complete sampling calibration and pulse phase matching before commissioning. Keep fiber away from vibration and sharp bending. Back up application program after formal commissioning.

Interface

High speed optical pulse ports, analog input terminals, digital I/O terminals, Ethernet port, Profibus connector, backplane expansion interface.

Diagnostic

Fiber link loss: Fiber broken, dirty fiber end face, optical module damage. Unstable current loop: Sampling offset, incorrect control parameter, pulse delay mismatch. Controller trip: Power supply fluctuation, watchdog overflow, external hardware fault trigger interlock. Download failure: Communication cable loose, project version mismatch.

Product BriefABB AC800PEC high-speed real-time controller, dedicated for power electronic converter control, supports Simulink code generation, for wind, traction, HVDC and rolling mill drive application.