How to implement partition control on multiple FFUs?
What problems does partition control solve?
In clean room projects, different areas may have different requirements for air supply volume, cleanliness and operating modes. The critical process area requires stable air supply, the auxiliary area can reduce the rotation speed during non-production periods, and some areas may need to be adjusted independently.
If all FFUs are controlled uniformly, it will not be able to meet the differentiated needs of different regions. Zone control can group multiple FFUs into areas and set parameters and operating modes respectively. This can not only meet regional requirements, but also avoid overall excessive air supply.
Therefore, multiple FFU projects usually require partition control. Aili Industrial has complete self-research capabilities in FFU control systems and can provide control solutions according to project zoning requirements. For the basic configuration of FFU control and communication, please refer toAili Industrial FFU fan filter unit。
How to divide partitions
Zoning is the basis of zoning control. Zoning can be based on process area, cleanliness level, room location, ceiling zoning or equipment layout. The key process area, auxiliary area, passage and return air area can be used as independent zones.
Zoning should be based on actual layout and control requirements. If the partition is too large, local adjustments may affect other areas. If the partition is too small, control points and debugging workload increase.
Zoning boundaries should be marked on the drawings and correspond to the address plan.
How addresses are assigned
Each FFU requires a unique address in the group control system. Partition control requires that addresses correspond to partitions, so that FFU addresses in the same partition are continuous or consistent.
Address allocation can be based on partition number plus serial number. In this way, the partition to which the device belongs can be determined from the address. The address table should record the equipment number, installation location, communication address and partition.
For address planning, please refer toHow does the FFU centralized control system plan device addresses and understand the numbering rules?
How to set control logic
Partition control logic includes partition settings, mode switching and linkage. Each zone can have independent speed or air volume settings. Different partitions can have different operating modes, such as production mode and duty mode.
There can be linkage relationships between partitions. For example, when a certain area enters production mode, adjacent areas automatically adjust. Linkage logic should be set according to process requirements.
The control logic should be configured in the group control system and verified during the debugging phase.
How does the group control system support partitioning?
The group control system needs to support partition setting and management. A touch screen controller or computer group control system can usually create partitions, assign devices, set parameters and view status.
For group control system solutions, please refer toFFU/EFU group control touch screen controller andFFU computer group control system . Aili Industrial has complete self-research capabilities in FFU control systems and can provide control solutions according to project zoning requirements.
How to set partition parameters
Zone parameters include speed or air volume settings, operating modes, alarm thresholds and linkage conditions. Parameters should be set according to regional requirements.
Higher speeds and strict alarm thresholds can be set in critical areas. The auxiliary area can set lower speed and general alarm threshold. Parameters should be recorded after setting and adjusted during debugging.
Debugging how to verify partitions
Zone debugging should be done zone by zone. Confirm that the partition device address is correct, communication is normal, and the settings are effective. Measure the wind speed or volume in the area to confirm that it meets the requirements. Check zone boundaries to confirm there are no obvious disturbances.
If the airflow between zones affects each other, settings can be adjusted or boundary measures added. Debugging records should be retained.
Issues that should be confirmed in advance during project communication
In the planning stage of multiple FFU partition control, it is recommended to confirm the following with the FFU manufacturer and designer: partition division method; partition control requirements; address allocation rules; control logic and linkage; group control system partition function; partition parameter settings; debugging and verification methods; recording format.
If you are planning multiple FFU partition control, you can visitAili Industrial FFU fan filter unit to learn about the complete machine configuration, you can also refer toFFU/EFU group control touch screen controller andFFU computer group control system to learn about the control scheme, or contact Aili Industrial for partition control support.
in conclusion
Multiple FFU partition control requires first dividing the control groups according to process, cleanliness level or room area, and then assigning addresses, setting parameters and debugging. Unreasonable partitioning or mismatched addresses may lead to chaotic control. Partition division, address allocation, control logic, group control support and debugging verification are the main links of partition control.
Aili Industrial has complete self-research capabilities in FFU control systems and can provide control solutions according to project zoning requirements. If you need to know more about FFU partition control, you can visitAili Industrial FFU fan filter unit , you are also welcome to contact Aili Industrial for project support.
