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4-15
4-2 Function Mode
4
Functions
Relation Between Torque Boost and V/f Characteristics
Determine the relation of output voltage against output frequency.
* To switch to the 2nd control, allocate 08 (SET) to the multi-function input terminal and then turn it on.
Control Method (V/f Characteristics)
Constant Torque Characteristics (VC)
•Ouput voltage is proportional to output frequency.
While proportional from 0 Hz to base frequency, the output voltage is constant from base to
maximum frequencies regardless of the frequency.
Reduced Torque Characteristics (VP 1.7th power)
•Suitable for a fan or pump that does not require large torque in a low speed range.
These provide high efficiency, reduced noise and vibration, owing to reduced output voltage in a
low speed range.
Parameter No.
Function name
Data
Default setting
Unit
A041
Torque boost selection
00: Manual torque boost
01: Automatic (simple) torque boost
00
⎯
*
A241
2nd torque boost selection
A042
Manual torque boost voltage
0.0 to 20.0
(Ratio to the value of AVR voltage
selection A082)
5.0
%
*
A242
2nd manual torque boost voltage
0.0
A043
Manual torque boost frequency
0.0 to 50.0
(Ratio to base frequency)
2.5
%
*
A243
2nd manual torque boost
frequency
0.0
A044
V/f characteristics selection
00: Constant torque characteristics
(VC)
01: Reduced torque characteristics
(VP 1.7th power)
06: Special reduced torque
characteristics (Special VP)
00
⎯
*
A244
2nd V/f characteristics selection
A045
Output voltage gain
20. to 100.
100.
%
A245
2nd output voltage gain
Related parameters
A082, H003/H203, H004/H204
0
Output
voltage
(100%)
Base frequency
(A003/A203)
Output
frequency (Hz)
Max. frequency
(A004/A204)
0
Output
voltage
(100%)
Base frequency
(A003/A203)
Output
frequency (Hz)
Max. frequency
(A004/A204)
VP (1.7th
power of VP)
Содержание JX-A4004
Страница 2: ......
Страница 16: ...14 About This Manual ...
Страница 19: ...Chapter 1 Overview 1 1 Functions 1 2 1 2 Appearance and Names of Parts 1 4 ...
Страница 24: ......
Страница 25: ...Chapter 2 Design 2 1 Installation 2 2 2 2 Wiring 2 7 ...
Страница 79: ...Chapter 4 Functions 4 1 Monitor Mode 4 2 4 2 Function Mode 4 6 ...
Страница 167: ...Chapter 5 Maintenance Operations 5 1 Special Display List Error Codes 5 2 5 2 Troubleshooting 5 6 ...
Страница 174: ...5 8 5 2 Troubleshooting 5 Maintenance Operations ...
Страница 175: ...Chapter 6 Inspection and Maintenance 6 1 Inspection and Maintenance 6 2 6 2 Storage 6 8 ...
Страница 190: ...7 8 7 3 Dimensional Drawing 7 Specifications JX A2004 AB004 80 5 6 143 1 9 109 5 27 2 6 107 155 67 5 ...
Страница 191: ...7 9 7 3 Dimensional Drawing 7 Specifications JX A2007 80 67 5 5 6 143 1 9 132 5 50 2 6 130 155 ...
Страница 192: ...7 10 7 3 Dimensional Drawing 7 Specifications JX A4004 AB007 110 98 5 5 6 176 189 128 1 9 130 5 28 2 6 ...
Страница 194: ...7 12 7 3 Dimensional Drawing 7 Specifications JX A2055 A2075 A4055 A4075 180 235 165 250 164 6 1 9 167 5 90 1 6 ...
Страница 199: ...Appendix Appendix 1Parameter ListApp 2 Appendix 2Product Life CurveApp 18 ...
Страница 217: ...INDEX ...
Страница 220: ......