Deskripsi
Electrostatic Precipitator Motherboard
Model : LZ8 064 701
Product Name: Electrostatic Precipitator Motherboard
Measuring range : 0-100
Measurement accuracy : 0.1%
Dimensions : 400x300x60 mm
Function: Serves as the central logic and regulation unit of the ESP control system, coordinating signals from feedback modules, trigger boards, and power supply units.
Category: ESP control cabinet motherboard / main controller PCB
Brand : YINGLI ENVIRONMENTAL PROTECTION
Product Overview :
The electrostatic precipitator motherboard, LZ8064701, is the primary control core of the electrostatic precipitator microcomputer automatic voltage controller.
I. Controller Components and Structure
The electrostatic precipitator microcomputer automatic voltage controller internally consists of a main control board, an integrated board, and a peripheral interface board—the sampling signal board. The controller is mounted on the control cabinet door, while the peripheral interface board is installed inside the cabinet.
II. Overview of Controller Components
1. Main Control Board
The main control board is a high-performance single-chip microcomputer system using the MCS-96 series 16-bit single-chip microcomputer 80C196KB as its core. Key chips include:
microcontroller, 80C196KB
RAM, 62256
Read-Only Memory, PSD311
Removable Memory, 93LC66
D/A converter, AD558TD
Programmable parallel interface, and 8255A
In addition to the microcontroller and peripheral chips, the main control board also includes a 2×16 character LCD driver circuit, function key input circuit, serial communication optical isolation driver circuit, and a watchdog reset circuit.
2. Integrated Board The
integrated board’s main circuits include a regulated power supply, zero-crossing pulse signal generation, analog signal processing inputs and spark detection, I/O interfaces, and light-controlled thyristor triggering.
3. Sampling Signal Board
The sampling signal board includes signal sampling and meter shunt components.
Application:
• Industry Use
• Coal-fired and biomass power plants
• Cement plants
• Steel mills
• Pulp & paper factories
• Function in ESP Systems:
• Acts as the “brain” of the ESP control cabinet
• Processes feedback signals (voltage, current, temperature, spark)
• Issues control commands to SCR trigger boards and power supply modules
• Ensures stable ESP operation, high dust collection efficiency, and protection against overload or back corona
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