Description

Compact Variable Frequency Drive (VFD)

The compact variable freuency drive is suitable for several applications where only power and torque are needed (no position / servo applications. Typical applications for this variable frequency drive (VFD) are compressors, fans, pumps, conveyors, hoisting applications, mixers, etc. The compact variable frequency drive (VFD) is suitable for asynchronous AC electric motors. The control method is based on V/F (Voltage Frequency ratio) and slip compensation or with Vector Control. Control can be achieved using digital inputs, a potentiometer, and operation of the display. The simplicity of this compact frequency controller translates into ease of configuration and robustness/reliability. Additionally, the compact design and preparation for DIN rail mounting make this frequency controller easily integrable in a panel or control cabinet. The compact frequency converter is equipped with a built-in EMC filter. Special heavy-duty coating of the electrical components provides protection against dust, moisture, chemical exposure, and vibrations. The compact frequency controller is designed with the aim of minimizing EMC (Electromagnetic Compatibility) and complies with the European Directive 2002/95/EC, Restriction of Hazardous Substances (RoHS) in electrical and electronic equipment.

Additional information

Weight	1,3 kg
Dimensions	72 × 185,5 × 146 mm
Frequency range	0-400Hz
Efficiency	97,5%
Power	0,75
Digital inputs	Both 2-wire (SNK) and 3-wire (SRC) control methods are possible.
Analog input	1x, both 4-20mA or 0-10V
Motor current protection	Based on I^2 * t, 150% current for 60 seconds and 200% current for 3 seconds.
Over voltage protection	The controller will automatically shut down if the voltage reaches or exceeds the specs.
under voltage protection	the inverter will shut down when reaching under voltage
Environmental requirements	Up to a maximum of 100 meters above sea level, 0-95% humidity, non-condensing, -10 to 40 degrees Celsius, not suitable for explosive, corrosive, or dusty environments. Maximum impact: 15g, maximum vibration: 1g, 5-200Hz.
switching frequency of the PWM	2 up to 16kHz. The power rating of the controller is based on a switching frequency of 4kHz. When operating at higher switching frequencies, the frequency controller may deliver less current to the motor. This reduction in current output can result in a decrease in audible noise generated by the frequency controller itself. However, it's important to note that the trade-off for reduced noise is a potential decrease in motor torque or power output.
Motor control	V/F control without encoder feedback with slip compensation and Vector Control without encoder feedback
Acceleration / decelleration	both adjustable in a range of 0,1s up to 600s