AC Variable Frequency Drive

Variable Frequency Drive is a DSP based general purpose AC Drive with state-of-the-art. Technology and incorporates the latest semiconductor power devices, with following salient features :

• Indigenously designed AC drives to with-stand Indian Power Conditions for Motor Control
• Space Vector Modulation Technique
• DC Bus Ripple cancellation
• Low output THD (total harmonic distortion)
• Output short circuit protection & various fault monitoring
• Custom designed human interface (HMI)

• Ratings Available 0.37 kW to 600 kW
• 3 Phase, 380V/415V/480V, 50/60Hz, Input Rating Power Supply,
• Tolerance Voltage : +10%, -15%,
• Frequency +/-5%, Imbalance less than 3%
• Output Voltage 3 Phase, 380V to 480V (Proportional to input voltage)
• Output Frequency Range 1Hz to 400Hz
• Frequency Stability Digital setting : +/-0.01% of max. Frequency
• Analog setting : +/-0.2% of max. Frequency (at temperatures -10^oC to +50^oC ambient)
• Output Rating Overload Capacity 150% for one minute
• Control system Space vector modulation with bus ripple compensation
• Adjustable current limit Programmable 30 to 200% of drive rated current
• Starting frequency 1 to 6Hz adjustable
• Base Frequency 30 to 400Hz
• Carrier frequency 2kHz to 6kHz programmable in steps of 1kHz
• Jog function Available with programmable speed/Acc/Dec
• Catch on fly Drive will search the running Motor speed, catches it and then proceeds to the set speed.
• Jump frequency One jump frequency control with adjustable jump range DC injection Braking