YASKAWA Varispeed f7 Manuale utente

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

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.

Date: 05/05/05, Rev: 05-05 Page 6 of 7 TM.F7SW.056

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

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.

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