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Sistem Kawalan Bilik Bersih dan Pemantauan Alam Sekitar
Sistem Kawalan DDC Bilik Bersih
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
Pengenalan Produk
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.
Ciri-ciri Utama
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.
Kebimbangan Produk Pelanggan
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.
Permohonan yang biasa
Air-handling unit DDCCleanroom zone controlMechanical-room automationBuilding automation retrofits
Parameter teknikal
Typical cleanroom DDC panel construction ranges are given below.
| Bahan Teras | Powder-coated steel enclosure with FR-4 DDC boards and pluggable copper terminals |
|---|---|
| Ketebalan Panel | 160-300 mm enclosure depth |
| Lebar berkesan | 400-800 mm panel width |
| Panjang maksimum | Up to 1200 mm panel height |
| Keluli Menghadapi Ketebalan | 1.2-1.5 mm powder-coated steel panels |
| Ketumpatan teras | 7800-8050 kg/m³ for steel enclosure components |
| Kekonduksian Terma | 45-60 W/(m·K) for the steel cabinet |
| Kemasan permukaan | Fine-textured off-white powder coat with printed terminal identification |
| Jenis Bersatu | Wall-mounted DIN-rail enclosure with removable terminal blocks and BACnet trunk connections |
| Penyesuaian | Boleh didapati berdasarkan aplikasi yang dimaksudkan dan persekitaran operasi. |
Pilihan yang boleh didapati
BACnet MS/TP or BACnet/IPLocal operator displayRemote I/O expansionIntegrated 24 VAC power supply
Planning a Cleanroom DDC Control System specification?
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