Functions
- Centralized control: It can control the
start, stop and speed regulation of a large number of FFUs in a unified manner.
- Status monitoring: Monitors the running
status of each FFU in real time, including whether it is running normally,
speed information, and whether there are faults.
- Data recording and analysis: Records data
such as the running time, speed and fault information of FFUs, and conducts
data analysis to help with equipment maintenance and performance optimization.
- Zoning control: Divides the clean room
into different zones and adjusts the operation parameters of FFUs in each zone
according to the actual needs.
Working principle:
- Communication connection: The controller
is connected to each FFU through communication lines such as RS485 or network
cables.
- Signal processing: The controller
receives status signals sent by each FFU and sends control signals to FFUs
according to the set control strategy.
- Control strategy execution: Based on
parameters such as the air cleanliness, temperature and humidity in the clean
room collected by sensors, the controller calculates and determines the optimal
operation parameters for the FFUs and adjusts them in a timely manner.
Structure:
- FFU computer management system: Usually
consists of professional monitoring software, which presents the FFU system
distribution map and zoning map on the main interface.
- Control host system: The core controller
of the FFU group control system, usually equipped with a touch screen for
long-distance monitoring and adjustment of FFUs.
- Field FFU control unit: With a
single-chip microcomputer as the core processor, it controls one or two FFUs
and is responsible for specific control tasks such as starting, stopping and
speed regulation.
Applications:
- Semiconductor manufacturing: It is used
in clean rooms for wafer production and processing to ensure the cleanliness of
the production environment and the stability of the air purification system.
- Biopharmaceutical: In the production
workshops of drugs and biological products, it helps to maintain a sterile and
dust-free environment and ensure product quality.
- Food processing: It is applied in
high-standard food processing workshops to control air quality and meet food
hygiene standards.
- Aerospace and precision instrument
manufacturing: It is used in the production and assembly workshops of aerospace
components and precision instruments to avoid the influence of dust and other
pollutants on product quality.
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