Variable frequency drives series
July 2005
Motion Control & Drives
The KBVF adjustable frequency drives provide variable speed control for standard 208-230 and 400/460 V 50 and 60 Hz 3-phase and PSC AC induction motors from under 750 W through 3,5 kW. The sinewave coded pulse width modulated (PWM) output operates at a carrier frequency of 16 kHz, which provides high motor efficiency and low noise. Adjustable linear acceleration and deceleration are provided, making the drive suitable for softstart applications. Its user-friendly design makes the KBVF easy to install and operate.
Tailoring to specific applications is accomplished with selectable jumpers and trimpots, eliminating the necessity for computer-like programming required on other drives. Most applications require no adjustments at all. For more advanced programming, PC-based Drive-Link software is available.
Main features include adjustable RMS Current Limit and I2t motor overload protection. Adjustable slip compensation with static auto-tune and boost provides high torque and excellent load regulation over a wide speed range. 'Power Start' feature delivers over 200% motor torque to overcome 'stiction' and ensure satisfactory start-up. Electronic inrush current limit (EICL) eliminates harmful AC line inrush current. The drive is suitable for machine or variable torque (HVAC) applications. With optional software, the drive can be programmed for DC injection braking.
For AC line and motor wiring, some models include quick-connect terminals. Models KBVF-27, 29, 45, 48 contain a barrier terminal block. Other features include: adjustable trimpots (CL, MAX, MIN, DEC/B6 ACC, COMP), customer selectable jumpers: line voltage (dual voltage models only), automatic-manual start/reset, motor frequency, frequency multiplier, forward/reverse).
Diagnostic LEDs are provided for power (PWR) and drive status (ST). A signal isolator and run/fault relay output contacts are provided on Models KBVF-45, 48 and are optional on all other models. Other optional accessories include: Class 'A' and 'B' AC line filters, dynamic brake module, multispeed board, programming kit, and modbus communication module. A connector is provided for easy installation of accessories. A 5 kΩ main speed potentiometer is also included.
Further reading:
Medium voltage drive for enhanced energy efficiency and process optimisation
Schneider Electric South Africa
Motion Control & Drives
Schneider Electric South Africa has unveiled its cutting-edge Altivar Process ATV6100 medium voltage (MV) drive range, designed to enhance energy efficiency and operational reliability across various industries.
Read more...
Powerful high-precision hexapod
Motion Control & Drives
With the HEX150-125HL, Aerotech is launching the latest generation of its hexapod technology. The compact six-axis positioner combines precise movements with high load capacity and simple integration.
Read more...
Servicing the electric motor sector
Motion Control & Drives
Hexagon Electrical has expanded its manufacturing and service capabilities to meet the growing demand for customised, high-performance specialised electric motors in heavy engineering, and hazardous industrial and mining applications.
Read more...
Control system for deep antenna
Rockwell Automation
Motion Control & Drives
When a major university in South Korea set out to build a 21-metre deep space antenna, the researchers needed a control system that could track celestial objects with pinpoint accuracy, a level of precision they thought was out of reach. By partnering with Rockwell Automation, they discovered that the right technology and support could turn their vision into reality.
Read more...
Manufacturers should go PFAS-Free
igus
Motion Control & Drives
igus continues to develop engineered plastics that are free of per- and polyfluoroalkyl substances (PFAS-free) in response to mounting evidence of severe environmental and health hazards caused by the chemicals.
Read more...
South African paper producer partners with ABB
Motion Control & Drives
Neopak, a leading manufacturer of containerboard and paper products, has renewed its partnership with global technology company, ABB to upgrade the existing automation system at its Rosslyn Paper Mill in Pretoria.
Read more...
ABB supplies electromagnetic stirrer to world’s largest electric arc furnace
Motion Control & Drives
ABB has secured an order from Çolakoglu Metalurji. for an ArcSave electromagnetic stirrer to be installed on one of the world’s largest electric arc furnaces (EAF)
Read more...
Compact, powerful and green mini-picker
Motion Control & Drives
SkyJacks has introduced Jekko’s Mini Picker to the southern African market. This is a compact, highly versatile and environmentally friendly electric mini-picker that is set to redefine lifting capabilities across multiple industries.
Read more...
Redefining industrial lifting
Motion Control & Drives
The Konecranes S-series hoist redefines industrial lifting through its integration of a ground-breaking synthetic rope with smart features, a lifting capacity of 20 tons, and the ability to adapt to diverse girder configurations.
Read more...
Bühler drives innovation in agriculture and food processing
Motion Control & Drives
NAMPO 2025 is set to be one of the most significant agricultural events in southern Africa. It provides a unique platform for Bühler to showcase its advanced solutions that are designed to improve efficiency, sustainability and profitability in the agricultural sector.
Read more...
printer friendly version