Three-quarter view of floor-standing FFU central control cabinet with blue touchscreen

FFU et équipement de purification de l'air terminal

FFU

A floor-standing control cabinet that supervises multiple FFU zones through an industrial HMI, protected power distribution and building-network communication.

Multi-Zone HMI Control
Central Alarm Overview
Operating Data Logging
BACnet or Modbus Interface

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Introduction de produit

The FFU central control system consolidates cleanroom fan commands, feedback and alarms in a lockable electrical cabinet. An industrial touchscreen presents zone status, airflow or speed setpoints and maintenance warnings, while internal PLC, power supplies, circuit protection and network repeaters distribute commands to field-connected EC fan filter units. The architecture can place routine room operation on the HMI and pass selected points to the building management system. Separate power and communication terminals simplify commissioning and isolate a field wiring fault from the supervisory electronics.

Key Features

A graphical HMI displays FFU zones, operating states and active faults from one service location.

PLC-based sequences can apply occupied, standby and recovery setpoints to different cleanroom areas.

Logged fan hours, alarm events and selected environmental points support maintenance planning.

Isolated BACnet or Modbus communication exchanges approved status and command points with the BMS.

Préoccupations du client produit

A large FFU installation becomes difficult to operate when individual units lack common setpoints, fault visibility and a controlled interface to the building system.

Operators walk through multiple rooms to change hundreds of local fan settings.The central HMI applies commands to defined FFU zones from one supervised interface.

A failed fan remains unnoticed until particle control is affected.Motor feedback and communication alarms identify the affected address and zone promptly.

Night operation consumes full fan power even when contamination loads are low.Scheduled occupied and standby modes reduce selected EC fan setpoints without shutting down monitoring.

Direct BMS commands can conflict with local cleanroom operating sequences.A defined gateway exposes selected points while the PLC retains interlocks and command priorities.

Les applications typiques

Large semiconductor FFU ceilingsMulti-room pharmaceutical facilitiesBattery dry-room clean zonesDisplay and optics manufacturingCentral cleanroom operations centres

Paramètres techniques

Representative enclosure and electronics ranges for an FFU central control system are listed below.

Matériaux de base	Industrial PLC, touchscreen HMI, 24 VDC power supplies, protected distribution and isolated RS-485/Ethernet gateways
Panneau épaisseur	180-300 mm control-cabinet depth
Largeur effective	600-1000 mm nominal cabinet width
Longueur maximale	Up to 1800 mm cabinet height for expanded power and communication sections
Acier face épaisseur	1.5-2.0 mm powder-coated steel enclosure and hinged front door
Densité Core	Approximately 1800-1900 kg/m³ nominal density of the FR-4 substrate used in the central control board
Conductivité thermique	Approximately 0.25-0.40 W/(m·K) through the FR-4 substrate inside the FFU central controller
surface finie	Light-grey or cleanroom-white epoxy-polyester powder-coated cabinet with sealed HMI bezel
Type joint	Gasketed hinged door, DIN-rail terminal blocks, separated gland plates and pluggable field connectors
Customisation	Disponible en fonction de l'application prévue et de l'environnement d'exploitation.

Options disponibles

Wall-mount or floor-standing cabinetBACnet MS/TP, Modbus RTU or Ethernet gatewayDifferential pressure and temperature inputsRemote web dashboard and event logging

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