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Systèmes de contrôle des salles blanches et de surveillance environnementale
Z Système de contrôle DDC Cleanroom
A distributed direct-digital-control panel that manages cleanroom HVAC loops, schedules and alarms through networked BACnet room and plant controllers.
- Distributed HVAC Control
- BACnet Controller Network
- Local Trend Buffering
- Expandable Universal I/O
Introduction de produit
DDC controllers are distributed between AHUs, mechanical rooms and cleanroom zones so each group of HVAC points is controlled close to the equipment. Universal inputs accept common temperature, humidity and pressure signals, while analog and digital outputs command dampers, valves and fan drives. BACnet communication exposes live values, alarms, schedules and trends to the building-management platform. Local programs and retained configuration allow the controlled plant to continue operating during a supervisory-network interruption.
Key Features
Universal I/O channels can be configured for common sensor, contact and actuator signals.
Local schedules, alarms and trend buffers remain active without a central workstation connection.
BACnet networking supports shared values and coordinated operation across multiple cleanroom zones.
Préoccupations du client produit
A DDC system must distribute control efficiently while preserving a consistent point structure and dependable communication to the central BMS.
Long home-run cables increase installation complexity and analog noise.Local DDC panels position I/O near AHUs and cleanroom zone equipment.
Different controller programs use inconsistent point names.A standardized device and point naming structure keeps graphics, alarms and trends aligned.
Supervisory network loss interrupts basic plant sequences.Local DDC logic, schedules and retained setpoints continue at the controller level.
Adding one sensor consumes a dedicated fixed-function module.Configurable universal I/O channels accommodate several common signal types.
Les applications typiques
Air-handling unit DDCCleanroom zone controlMechanical-room automationBuilding automation retrofits
Paramètres techniques
Typical cleanroom DDC panel construction ranges are given below.
| Matériaux de base | Powder-coated steel enclosure with FR-4 DDC boards and pluggable copper terminals |
|---|---|
| Panneau épaisseur | 160-300 mm enclosure depth |
| Largeur effective | 400-800 mm panel width |
| Longueur maximale | Up to 1200 mm panel height |
| Acier face épaisseur | 1.2-1.5 mm powder-coated steel panels |
| Densité Core | 7800-8050 kg/m³ for steel enclosure components |
| Conductivité thermique | 45-60 W/(m·K) for the steel cabinet |
| surface finie | Fine-textured off-white powder coat with printed terminal identification |
| Type joint | Wall-mounted DIN-rail enclosure with removable terminal blocks and BACnet trunk connections |
| Customisation | Disponible en fonction de l'application prévue et de l'environnement d'exploitation. |
Options disponibles
BACnet MS/TP or BACnet/IPLocal operator displayRemote I/O expansionIntegrated 24 VAC power supply
Planning a Cleanroom DDC Control System specification?
Envoyez-nous vos dimensions, conditions d'installation, objectifs de performance et finition de surface requise.
