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RVFF AC Variable Frequency Drive
The VariFlex3 RVFF is a simple, compact and general purpose AC variable speed drive for use with 3-phase AC induction motors. Parameters are logically divided in to fifteen different groups for simple and immediate setting of the devices according to the needs of the process. Via an extension cable, the standard display can be placed outside the cabinet where the drive is installed.
The RVFF is a complete family of inverters ranging from 3.7kW/5HP up to 160kW/215HP with three phase AC input 480VAC.
The VariFlex3 employs state of the art microprocessor digital technology which controls all drive functions. All printed circuit boards are coated and manufactured using surface mount technology, ensuring the high quality and reliability of the units.
Features
• AC variable speed drive for use with AC induction motors
• Sensorless vector control or V/F, SLV, PMSLV with space vector PWM mode
• Input voltage ranges: 3-ph 480VAC
• 150%/1Hz (vector mode) starting torque
• Simple built-in PLC function always available
• PID function available
• Conforms to EMI radio standard and EMS immunity standard EN 61800-3 for the second environment (Industrial sites)
• All parameters accessible both via keypad and PC
• 6 different physical frame sizes
• RS485 Modbus RTU/ASCII serial communications available on all models through an option card
• Speed setting by buttons and knob
• Copy module option for fast and accurate drive to drive parameter transfer and storage
• NPN/PNP digital inputs
• DIN rail or panel mounting and keypad extension available on all models
• Communication interface modules for Profibus/DeviceNet/ Ethernet (TCP/IP)/CANopen/BACnet
