1500 Hz High Frequency F7 Drive Software Technical
Contents
1. Motor Speed 4 5 Modified Monitors U1 XX Monitor Description E Uo 01 Frequency Reference Resolution changed to 01Hz Frequency Reference Resolution changed to 01Hz Resolution changed to 0 1Hz U1 02 Output Frequency Resolution changed to 0 1Hz U1 20 Soft Starter Output Resolution changed to 0 1Hz U2 03 Fault Trace Frequency Reference Resolution changed to 0 1Hz U2 04 Fault Trace Output Frequency Resolution changed to 0 1Hz 5 0 Function Description See sections 1 0 and 6 0 Date 05 05 05 Rev 05 05 Page 5 of 7 TM F7SW 056 efesotomasyon com 6 0 Application Notes 6 1 Carrier Frequency The carrier frequency should be left at 10kHz whenever possible This is because at high output frequencies the number of output PWM pulses per AC sine wave cycle is low At an output frequency of 1000Hz and a carrier frequency of 10kHz there are only 10 output pulses per cycle The fewer the number of pulses the less sinusoidal the current waveform will be If the starting torque for the application is insufficient with the default carrier frequency parameter settings then use the following settings C6 03 10 0kKHz Carrier Frequency Upper Limit C6 04 1 0kHz Carrier Frequency Lower Limit C6 05 24 Carrier Frequency Gain 6 2 Applying an Output Reactor High speed motors typically have very low impedance This can result in excessive motor current increased motor temperature low speed cogging and increased tor2. Y YASKAWA 1500 Hz High Frequency F7 Drive Software Technical Manual pis Manual also available on t WWW ofrfves com Software Number VSF11001X Drive Models CIMR F7UXXXXXX 056 Document Number TM F7SW 056 Date 05 05 05 Rev 05 05 efesotomasyon com This document is intended to provide proper installation and use of the Yaskawa drive with custom software This document is a supplement to the standard drive technical manual It describes the effects on the drive parameters and functions with the software installed Read and understand this document and the standard drive technical manuals before attempting to install adjust operate inspect or maintain the drive Observe all cautions and warnings in this document and the standard drive technical manuals Custom software is written to add functionality to a standard AC drive to enhance or enable use in a specific application The software is loaded to the flash ROM area of the control board and replaces the standard drive software Custom software can add new functions modify standard functions or even inhibit standard functions It can be used to modify display text or parameter names Custom software is usually loaded to the drive before delivery The control board and drive nameplate are assigned unique part numbers and the software is registered archived and retrievable When seeking support for a drive with custom software it is imperative to provide the unique part number
3. Deleted Parameters and Functions Parameter Number B1 05 B2 08 B3 10 B7 Group B8 Group B9 Group C3 05 C4 03 C4 04 C4 05 C5 Group C6 01 C6 02 D5 Group E2 04 E2 06 E2 07 E2 08 E2 09 E4 04 E4 06 F1 Group H1 Group H2 Group Digital Outputs Deleted Functions 1D 30 31 32 and 33 H3 Group Analog Inputs Deleted Functions 10 11 12 13 14 and 15 Description Zero speed Operation Magnetic Field Forcing Speed Search Detection Gain Droop Control Energy Savings Zero Servo Control Field Weakening Method Torque Compensation Forward Start Torque Compensation Reverse Start Torque Compensation Time Constant ASR Tuning Drive Duty Selection Internally fixed to setting 1 Normal Duty 1 V F Pattern Selection Internally fixed to setting F Program Torque Control Motor 1 Motor Poles Motor 1 Leakage Inductance Motor 1 Saturation Comp 1 Motor 1 Saturation Comp 2 Motor 1 Mechanical Loss Motor 2 Motor Poles Motor 2 Leakage Inductance Encoder Feedback Option Card Digital Inputs Deleted Functions D E 65 66 68 71 72 77 and 78 Date 05 05 05 Rev 05 05 Page 3 of 7 TM F7SW 056 4 3 Modified Parameters and Functions Description umber 4 4 4 Z 4 idpoi l 4 D3 01 Jump Frequency 1 1000 0HzZ maximum 1 1500Hz when C6 11 1 Frequency Reference Limit Date 05 05 05 Rev 05 05 Page 4 of 7 TM F7SW 056 4 4 Deleted Monitors U1 XX umber U1 05 05 Motor Speed
4. shown on the drive nameplate The software has been flashed to the control board memory and the operation of parameters functions and monitors are different than the standard drive software as described herein 1 0 Overview This custom software is designed for high frequency motor spindle applications The drive s maximum output frequency can be set to either 1000Hz or 1500Hz depending upon C6 11 C6 11 is a factory level parameter that can be accessed by setting A1 04 0616 Password and then setting A1 01 616 Access Level Do not change any other factory parameters Non applicable drive functions have been deleted in order to optimize CPU processing time for this software 1 1 Basic Specifications 20 fortminueony OOOO 120 for 1 minute only 2 0 Changes from Standard Product a The drive s output current has been de rated to allow for a higher carrier frequency b Many of the drive s standard features have been deleted 3 0 Limitations See section1 1 4 0 Related Parameters and Functions 4 1 New Parameters Control Mode 1 Parameter Name Description e6ueuyd Digital Operator Display Jajoweled uny Bung C6 11 22DH Unbal Det Sel 0 1000Hz 1 1500Hz 1 Access Level A1 01 Q Quick Start A Advanced F Factory Sets the upper limit of the Frequency maximum output Reference Limit frequency E1 04 F Date 05 05 05 Rev 05 05 Page 2 of 7 TM F7SW 056 4 2
5. ated current for 10 0kKHz operation is listed below in the table which shows the de rated values of the larger models The drive overload function 120 for 1 minute uses the values listed in the table below as the 100 level The drive must be correctly sized for the application using the correct overload and current ratings Output current derating factor F7U2037 2090 lt F7U2022 A F7U4075 4110 lt F7U4022 100 80 e F7U4132 _ ee Poe nee ires aceon Sat tae ge aaa 50 Carrier 0 5kHz 8kHz 10kHz 15kHz frequency De rating of Rated Current Based on Carrier Frequency Date 05 05 05 Rev 05 05 Page 6 of 7 TM F7SW 056 6 3 1 Rated Output Current for High Frequency Operation Rated Output Current Rated Output Current re en 22 trio rn vere O o O T O m n 2 Denotes current ratings that have been de rated from Heavy Duty 1 ratings to achieve 10 0kHz carrier frequency Date 05 05 05 Rev 05 05 Page 7 of 7 TM F7SW 056
6. que ripple The use of an output reactor may be required to add impedance to the system The output current should be measured using an oscilloscope or chart recorder with a clamp on amp meter to check for a sinusoidal waveform If a reactor is needed based on the above mentioned conditions be sure to account for the high output frequencies The reactor impedance is directly proportional to the output frequency and is usually given at 60Hz The same reactor operating at 1200Hz would have 20 times the impedance which would result in 20 times the voltage drop at rated load Therefore a reactor must be chosen that will smooth out the current waveform but not result in too large of a voltage drop Unfortunately there are no golden rules as to when a reactor is needed or the correct amount of impedance of the reactor 6 3 Current Overload Ratings In order to achieve a high carrier frequency across the entire model range the F7 is operated in Normal Duty 1 Normal Duty 1 is an unpublished operating mode that utilizes high carrier frequency reduced current ratings same as Heavy Duty 1 ratings in TM F7 01 and reduced overload 120 for 1 minute This software defaults the carrier frequency to 10 0kHz for all ratings to achieve the best possible current waveform In order to run the larger drives at 10 0kHz models 2037 4075 and larger the rated current is automatically de rated The graph below details the de rating of each model The drive s r
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