Three-quarter view of a compact FFU speed controller with rotary dial and six-way terminal block

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Kawalan kelajuan FFU

A compact panel-mounted controller that gives operators direct, stepless airflow adjustment for compatible EC-motor fan filter units.

Stepless Manual Adjustment
EC Fan Signal Control
Compact Panel Mounting
Serviceable Screw Terminals

Permintaan sebut harga Semak imbas produk

Pengenalan Produk

The FFU speed controller provides a local setpoint for a compatible electronically commutated fan motor. Turning the front potentiometer varies the low-voltage command used by the motor electronics, allowing commissioning or maintenance personnel to trim airflow without replacing the FFU drive. The molded enclosure protects the control components, while mounting ears and a removable screw terminal block simplify installation near the fan housing or inside a control compartment. Signal range, terminal assignment and minimum-speed behavior must be matched to the existing motor or FFU control card.

Ciri-ciri Utama

Rotary potentiometer gives smooth local adjustment across the usable FFU airflow range.

Low-voltage signal architecture is suited to EC fans that accept an analog speed command.

Front status indication provides a quick visual check that the control circuit is energized.

Screw terminals and external mounting tabs support straightforward replacement and servicing.

Kebimbangan Produk Pelanggan

A replacement speed controller must produce the signal expected by the installed motor and fit the existing wiring and mounting arrangement.

The new controller uses a signal range that the existing EC motor cannot interpret correctly.The controller is selected to match the motor's specified analog command range and reference supply.

Airflow falls below the stable operating point at the lowest dial position.Minimum-speed behavior can be matched or preset to preserve the required lower airflow limit.

Different terminal assignments create wiring errors during field replacement.Terminal count, signal common, reference voltage and command output are verified against the original connection diagram.

The control cannot be secured near the FFU without modifying the housing.Mounting-tab geometry and enclosure orientation can be configured for the available service space.

Permohonan yang biasa

Single FFU airflow commissioningCleanroom ceiling fan filter unitsLaminar-flow workstation fansLocal EC fan maintenance control

Parameter teknikal

Typical construction ranges for compact manual FFU speed controllers are shown below.

Bahan Teras	Flame-retardant PC/ABS enclosure with FR-4 control board and copper-alloy terminals
Ketebalan Panel	35-70 mm nominal enclosure depth
Lebar berkesan	70-135 mm nominal mounting width
Panjang maksimum	Up to 160 mm overall length including mounting tabs
Keluli Menghadapi Ketebalan	0.8-1.5 mm equivalent terminal-clamp and internal bracket thickness
Ketumpatan teras	1050-1250 kg/m³ for molded PC/ABS enclosure material
Kekonduksian Terma	0.18-0.25 W/(m·K) for molded enclosure material
Kemasan permukaan	Fine-textured matte-black housing with white dial marks, green indicator and green terminal block
Jenis Bersatu	Six-position screw terminal connection with bolted external mounting tabs
Penyesuaian	Boleh didapati berdasarkan aplikasi yang dimaksudkan dan persekitaran operasi.

Pilihan yang boleh didapati

0-10 V or matched potentiometer interfaceMinimum-speed presetAlternative terminal assignmentCustom mounting-tab geometry

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