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

Cleanroom Equipment Spare Parts

FFU Speed Controller (pengontrol kecepatan 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

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Perkenalan 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.

Fitur 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.

Kekhawatiran 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.

Aplikasi yang Tipis

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

Parameter teknis

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

Bahan inti	Flame-retardant PC/ABS enclosure with FR-4 control board and copper-alloy terminals
Ketebalan Panel (Panel Thickness)	35-70 mm nominal enclosure depth
Efektif lebar	70-135 mm nominal mounting width
Panjang maksimum	Up to 160 mm overall length including mounting tabs
Baja menghadap ketebalan	0.8-1.5 mm equivalent terminal-clamp and internal bracket thickness
Kepadatan inti (core density)	1050-1250 kg/m³ for molded PC/ABS enclosure material
Konduktivitas Termal (Thermal Conductivity)	0.18-0.25 W/(m·K) for molded enclosure material
Permukaan selesai	Fine-textured matte-black housing with white dial marks, green indicator and green terminal block
Jenis Bersama	Six-position screw terminal connection with bolted external mounting tabs
Customization (Kustomisasi)	Tersedia berdasarkan aplikasi yang dimaksudkan dan lingkungan operasi.

Pilihan yang tersedia

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

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