Preen AFV-31010-65 Programmable AC Power Source
The AFV is a series of programmable AC power source that can be remote controlled and integrated with other systems for easier operation. Applications include home appliance, electronic, medical equipment, lighting, and etc. With better accuracy and faster response time, the AFV series offers greater advantage for R&D and compliance tests.
Utilized PWM switching technology, AFV provides high quality pure sine waveform with output level up to 2,000kVA. The AC source is coupled with output voltage range of 0~300V and output frequency of standard 45~65Hz or optional 45~500Hz
Users can select communication interfaces of RS-485, RS-232, and optional GPIB.
AFV Series Product Features
Touch Screen is available
Touch screen: easy to operate, rich colors, able to simulate change curve, suitable for non-harsh environment such as laboratory and R&D center.
Programmable output voltage and frequency functionality:
generic mode, step change mode, gradual change mode and curve change simulation
- Generic mode (standard): one set of output voltage and output frequency
- Step Change Mode (standard): up to 24 sets (255 cycles) of output voltage and frequency are available for configuration. Each voltage, frequency and running time can be set separately.
- Gradual Change Mode (standard): up to 12 sets (255 cycles) of output voltage and frequency are available for configuration. Each set includes starting voltage, starting frequency and ending voltage, ending frequency and running time.
- Curve change simulation (optional): voltage and frequency variation simulation can be made according to customer's requirement and relevant standard.
Step Change Mode
Voltage and Frequency Setting Interface at Step Change Mode
Voltage and Frequency Change Schematic Diagram
Gradual Change Mode
Voltage and Frequency Setting Interface at Gradual Change Mode
Voltage and Frequency Change Schematic Diagram
Application areas of AFV series products
Multiple communication ports to choose
- RS232 or RS485 are available; option to support MODBUS
- GPIB and USB are optional; option to support SCPI or LabVIEW
Soft start function (optional): VVCF or VVVF soft start is specially designed for electric motor testing Inrush current is reduced; therefore lower power capacity and purchase cost are needed
Method 1: VVCF soft start Schematic
Method 2: VVVF soft start Schematic Diagram
Enhanced troubleshooting function
- Fault code is shown in the screen in the event of fault; to enable quick troubleshooting and reduce downtime and therefore enhance uptime
- Fault code and message in the AFV unit can be replicated into USB memory stick for further survey
Back-feed protection
- When back-feeding occurs, over voltage is detected and then output is switched off immediately to protect load equipment and maintain safety
Independently adjustable three-phase output
- Three-phase output voltage (and frequency) is independently adjustable
- Work as one unit of three-phase power source or as three units of Single-phase power source
Eco-friendly and high-efficiency design
- Power module technology: used to make size smaller and power density higher
- SMD technology: used to enhance the reliability of the AFV unit
- High-efficiency IGBT: low EMI and high inverter efficiency
- Lightning protection module(optional): prevent a lightning storm from damaging the input/output circuitry and the AFV unit and load equipment.
- Variable-speed fans(optional): low noise, low maintenance and high energy efficiency