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FFU ومعدات تنقية الهواء الطرفية
EC FFU السرعة المتحكم
A local low-voltage controller that adjusts one EC fan filter unit through an isolated 0–10 V or PWM command and displays its operating setpoint.
- Local Airflow Setpoint
- Isolated 0-10 V Output
- Remote Enable Input
- Compact Wall Mount
مقدمة المنتج
The EC FFU speed controller provides a simple room-side interface for one fan filter unit or a small matched pair. A sealed rotary knob sets the airflow command, and an optional digital display shows percentage, voltage or fan feedback. Galvanic isolation protects the low-voltage signal from field wiring noise, while a remote enable input allows a door interlock, occupancy relay or supervisory panel to place the FFU into standby. The controller regulates the EC motor command only; mains isolation and motor protection remain within the FFU electrical assembly.
الخصائص الرئيسية
The isolated analogue output reduces ground-loop errors on long control cables.
Remote enable contacts permit standby operation from an external cleanroom sequence.
A removable terminal plug speeds replacement without disturbing fixed field conductors.
مخاوف المنتج للعملاء
A standalone EC FFU needs stable speed adjustment without exposing mains wiring or forcing operators to reach above the cleanroom ceiling.
The factory trim potentiometer is inaccessible after the FFU is installed above the ceiling.A room-side rotary control places the setpoint at a convenient operating location.
Voltage drop and electrical noise make the fan speed drift on a long signal cable.An isolated 0-10 V output and referenced common improve command stability.
The fan must enter standby when a process tool stops, but its speed setting should be retained.A separate enable input disables the output without moving the setpoint knob.
Replacing a failed controller requires every conductor to be removed individually.A keyed pluggable terminal block disconnects the complete low-voltage harness as one assembly.
تطبيقات نموذجية
Single EC fan filter unitsClean benches and mini-environmentsIndependent ceiling FFU zonesEquipment fan filter modulesLaboratory clean-air stations
المعلمات الفنية
Representative physical ranges for a local EC FFU speed controller are listed below.
| المواد الأساسية | Microcontroller board with isolated 0-10 V or PWM output, sealed potentiometer and optional digital display |
|---|---|
| سمك اللوحة | 45-90 mm installed controller depth |
| العرض الفعال | 86-150 mm faceplate width |
| الحد الأقصى الطول | Up to 200 mm enclosure height |
| الصلب يواجه سمك | 0.8-1.0 mm stainless or powder-coated steel mounting plate when specified |
| الكثافة الأساسية | Approximately 1800-1900 kg/m³ nominal density of the FR-4 substrate used in the EC speed controller |
| الموصلية الحرارية | Approximately 0.25-0.40 W/(m·K) through the compact FR-4 board in the EC speed controller |
| إنهاء السطح | White flame-retardant polymer or cleanroom-white powder-coated metal faceplate with blue control knob |
| نوع المشترك | Flush or surface wall mount with keyed pluggable low-voltage terminals or RJ-style control connector |
| التخصيص | متوفر على أساس التطبيق المقصود وبيئة التشغيل. |
الخيارات المتاحة
Rotary-only or digital display version0-10 V, PWM or EC motor-specific outputRemote enable and fault inputFlush wall plate or surface enclosure
Planning a EC FFU Speed Controller specification?
أرسل لنا الأبعاد الخاصة بك، شروط التثبيت، أهداف الأداء والتشطيب السطحي المطلوب.
