Product Description:

The 135N1759 is a variable frequency drive manufactured by Danfoss for the VLT FC 280 Midi Drives series. It receives fixed-frequency AC power and produces a pulse-width-modulated output that allows automation controllers to adjust induction motor speed and torque on demand. By combining motor control, fieldbus communication, and electromagnetic interference suppression in one enclosure, the drive supports conveyor sections, packaging lines, and pump skids that require midrange power and straightforward setup. The integrated design also reduces the number of separate control and filtering components required inside an electrical cabinet.

Under rated conditions, the inverter supplies 2.2 kW of electrical power to the motor terminals, which corresponds to 3.0 HP for applications that use horsepower ratings. The input stage accepts a three-phase 380–480 VAC supply, allowing the unit to connect directly to common industrial power systems without a transformer. Harmonic and radio-frequency interference is reduced by the integrated EMC Category C3 (200/400 V) RFI filter, which supports operation in industrial electromagnetic environments. For stopping duties, the unit includes a brake chopper that allows an external dynamic braking resistor to dissipate surplus energy produced during rapid deceleration or operation with overhauling loads. The input range, output capacity, and braking function support motor control in machinery that experiences varying speeds and frequent changes in load.

System integration is supported by the standard control card with Modbus, which carries speed commands and diagnostic data over a two-wire serial connection. Long-term reliability benefits from the coated printed circuit board, as its protective coating shields solder joints and electronic components from condensation, dust, and airborne contaminants. The drive includes no optional mains hardware, so its line-side arrangement follows the base input configuration for this model. Menu text is supplied through the standard language pack, making parameter names and operating messages available in commonly supported languages. Operators can use the displayed information to review drive status, adjust motor settings, and identify active warnings without adding a separate display translation package.