Vacon NXL Series User Manual

Also see for NXL series: User manual User manual

Contents

Vacon NXL Series User Manual Manual pdf 14 page image

14(80) Technical data vaconVacon Oyj Telephone: +358-201-2121 Fax: +358-201-212 20524-hour support: +358-40-8371 150 Email: vacon@vacon.com44. TECHNICAL DATA4.1 IntroductionVacon NXL is a compact, small-sized frequency converter with the output ranging from 220 W to30 kW. It is well adapted for HVAC and OEM applications where its possibilities of use are almostunlimited.The Motor and Application Control Block is based on microprocessor software. The microprocessorcontrols the motor basing on the information it receives through measurements, parameter settings,control I/O and control keypad. The motor and application control block controls the motor controlmicroprocessor which, in turn, calculates the IGBT positions. Gate drivers amplify these signals fordriving the IGBT inverter bridge.The control keypad constitutes a link between the user and the frequency converter. The controlkeypad is used for parameter setting, reading status data and giving control commands. Instead ofthe control keypad, also a PC can be used to control the frequency converter if connected through acable and a serial interface adapter (optional equipment).You can have your Vacon NXL drive equipped with control I/O boards NXOPTAA, NXOPTB_ orNXOPTC_.All other sizes but MF2 have an internal brake chopper. For closer information, contact theManufacturer or your local distributor (see back cover). The input EMC filters are available asoptions externally for MF2 and MF3. In other sizes the filters are internal and included as standard.The NXL frequency converters are professional drives intended to be connected to industrialnetworks. They should not be connected to public low- voltage distribution systems. This is a productof the restricted sales distribution class according to IEC 61800-3. In a domestic environment thisproduct may cause radio interference in which case the user may be required to take adequatemeasures.Sizes MF4 – MF6:The three-phase AC-choke at the mains end together with the DC-link capacitor form an LC-filter,which, again, together with the diode bridge produce the DC-voltage supply to the IGBT InverterBridge block. The AC-choke also functions as a filter against High Frequency disturbances from themains as well as against those caused by the frequency converter to the mains. It, in addition,enhances the waveform of the input current to the frequency converter. The entire power drawn bythe frequency converter from the mains is active power.The IGBT Inverter Bridge produces a symmetrical, 3-phase PWM-modulated AC-voltage to themotor.