YASKAWA Varispeed f7 User manual

1500 Hz High Frequency
F7 Drive Software
Technical Manual
Software Number: VSF11001X, Drive Models: CIMR-F7UXXXXXX-056
Document Number: TM.F7SW.056, Date: 05/05/05, Rev: 05-05

Date: 05/05/05, Rev: 05-05 Page 2 of 7 TM.F7SW.056
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 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
Item Specification
Maximum Output Frequency 1000Hz (1500Hz when C6-11 = 1)
Control Mode V/f without encoder feedback only (A1-02 = 0)
Drive Duty Rating Normal Duty 1 only (C6-01 = 1). See section 6.3
Drive Overload 120% for 1 minute only
Drive Current Rating See section 6.3
Carrier Frequency 10.0kHz maximum and default
Applicable Inverter Models 230V Class, 20P4 – 2090, 480V Class, 40P4 - 4160
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
Number Modbus
Address
Parameter Name
Digital Operator
Display
Description
Range
Default
Change
During Run
V/f
V/f w/ PG
O
pen
Loop
Vector
Flux
Vector
C6-11 22DH
Frequency
Reference Limit
Unbal Det Sel
Sets the upper limit of the
maximum output
frequency (E1-04).
0: 1000Hz
1: 1500Hz
0 ~ 1 0 No F - - -
*1: Access Level (A1-01): Q = “Quick Start”, A = “Advanced”, F = “Factory”.

Date: 05/05/05, Rev: 05-05 Page 3 of 7 TM.F7SW.056
4.2 Deleted Parameters and Functions
Parameter
Number Description
B1-05 Zero-speed Operation
B2-08 Magnetic Field Forcing
B3-10 Speed Search Detection Gain
B7 Group Droop Control
B8 Group Energy Savings
B9 Group Zero Servo Control
C3-05 Field Weakening Method
C4-03 Torque Compensation - Forward Start
C4-04 Torque Compensation - Reverse Start
C4-05 Torque Compensation Time Constant
C5 Group ASR Tuning
C6-01 Drive Duty Selection (Internally fixed to setting 1: Normal Duty 1)
C6-02 V/F Pattern Selection (Internally fixed to setting F: Program)
D5 Group Torque Control
E2-04 Motor 1 Motor Poles
E2-06 Motor 1 Leakage Inductance
E2-07 Motor 1 Saturation Comp 1
E2-08 Motor 1 Saturation Comp 2
E2-09 Motor 1 Mechanical Loss
E4-04 Motor 2 Motor Poles
E4-06 Motor 2 Leakage Inductance
F1 Group Encoder Feedback Option Card
H1 Group Digital Inputs: Deleted Functions D, E, 65, 66, 68, 71, 72, 77, and 78
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
H4 Group Analog Outputs: Deleted Functions 5, 9, 19, 21, 22, 26, 27, 32, 33, and 44
L2-06 KEB Decel Time
L2-07 KEB Recovery Time
L2-08 KEB Start Gain
L7 Group Torque Limit
N2 Group AFR Tuning
N3 Group High Slip Braking
N5 Group Feed Forward Control
O1-04 V/F Pattern Scaling
T1 Group Auto-tuning

Date: 05/05/05, Rev: 05-05 Page 4 of 7 TM.F7SW.056
4.3 Modified Parameters and Functions
Parameter
Number Description
A1-02 Motor 1 Control Method: Setting fixed to ‘0’ (Open Loop V/F)
B3-01 Speed Search Selection: Range changed to 2 ~ 3
B5-15 PID Sleep Level: 1000.0Hz maximum
B6-01 Dwell Frequency at Start: 1000.0Hz maximum *1
B6-03 Dwell Frequency at Stop: 1000.0Hz maximum *1
C1-11 Acc/Dec Switch Frequency: 1000.0Hz maximum *1
C4-01 Torque Compensation Gain: Default changed to 0.0
C6-03 Carrier Frequency Upper Limit: 10.0kHz maximum and default
C6-04 Carrier Frequency Lower Limit: 10.0kHz maximum and default
D1 Group Frequency References: 1000.0Hz maximum *1
D3-01 Jump Frequency 1: 1000.0Hz maximum *1
D3-02 Jump Frequency 2: 1000.0Hz maximum *1
D3-03 Jump Frequency 3: 1000.0Hz maximum *1
D6-02 Field Weakening Frequency: 1000.0Hz maximum *1
E1-04 Motor 1Maximum Output Frequency: 1000.0Hz maximum *1
E1-06 Motor 1 Base Frequency: 1000.0Hz maximum *1
E1-07 Motor 1 Midpoint Frequency A: 1000.0Hz maximum *1
E1-09 Motor 1 Minimum Frequency: 1000.0Hz maximum *1
E1-11 Motor 1 Midpoint Frequency B: 1000.0Hz maximum *1
E3-01 Motor 2 Control Method: Range fixed to 0 (Open Loop V/F)
E3-02 Motor 2 Maximum Output Frequency: 1000.0Hz maximum *1
E3-04 Motor 2 Base Frequency: 1000.0Hz maximum *1
E3-05 Motor 2 Midpoint Frequency A: 1000.0Hz maximum *1
E3-07 Motor 2 Minimum Frequency: 1000.0Hz maximum *1
F3-01 DI-08 / DI-16H2 Selection: Range changed to 0 ~ 4, 7
L4-01 Speed Agree Level: 1000.0Hz max *1
L4-03 Speed Agree Level +/-: -1000 to 1000Hz max *1
N1-01 Hunting Prevention Selection: Default changed to 0 (Disabled)
O1-03 Keypad Display Scaling: Setting ‘0’ resolution changed to 0.1Hz
*1: 1500Hz when C6-11 = 1 (Frequency Reference Limit).

Date: 05/05/05, Rev: 05-05 Page 5 of 7 TM.F7SW.056
4.4 Deleted Monitors (U1-XX)
Monitor
Number Description
U1-05 Motor Speed
U1-09 Torque Reference
U1-19 Motor Excitation Current (Id)
U1-21 ASR Input
U1-22 ASR Output
U1-26 Voltage Reference (Vq)
U1-27 Voltage Reference (Vd)
U1-32 ACR (q) Output
U1-33 ACR (d) Output
U1-35 Zero Servo Pulses
U1-44 ASR Output (w/o filter)
U2-06 Fault Trace Motor Speed
U2-10 Fault Trace Torque Reference
4.5 Modified Monitors (U1-XX)
Monitor
Number Description
U1-01 Frequency Reference: 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.

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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 = 10.0kHz 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 torque 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 rated current for
10.0kHz 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.
100%
80%
5kHz 10kHz 15kHz
0
Output current
derating factor
Carrier
frequency
F7U2030
F7U4030 ~ 4055
50%
8kHz
F7U2037 ~ 2090
F7U4075 ~ 4110
F7U4132
F7U4160
< F7U2022
< F7U4022
75%
De-rating of Rated Current Based on Carrier Frequency

Date: 05/05/05, Rev: 05-05 Page 7 of 7 TM.F7SW.056
6.3.1 Rated Output Current for High Frequency Operation
Model Rated Output Current Model Rated Output Current
F7U20P4 3.2 A F7U40P4 1.8 A
F7U20P7 4.1 A F7U40P7 2.1 A
F7U21P5 7.0 A F7U41P5 3.7 A
F7U22P2 9.6 A F7U42P2 5.3 A
F7U23P7 15.0 A F7U43P7 7.6 A
F7U25P5 23.0 A F7U44P0 8.7 A
F7U27P5 31.0 A F7U45P5 12.5 A
F7U2011 45.0 A F7U47P5 17.0 A
F7U2015 58.0 A F7U4011 24.0 A
F7U2018 71.0 A F7U4015 31.0 A
F7U2022 85.0 A F7U4018 39.0 A
F7U2030 115.0 A F7U4022 45.0 A
F7U2037 116.0 A *2 F7U4030 60.0 A
F7U2045 144.0 A *2 F7U4037 75.0 A
F7U2055 172.0 A *2 F7U4045 91.0 A
F7U2075 226.4 A *2 F7U4055 112.0 A
F7U2090 276.8 A *2 F7U4075 120.0 A *2
- - F7U4090 144.0 A *2
- - F7U4110 172.8 A *2
- - F7U4132 195.0 A *2
- - F7U4160 243.2 A *2
*2: Denotes current ratings that have been de-rated from Heavy Duty 1 ratings to achieve 10.0kHz carrier
frequency.