4-21
4-2 Function Mode
4
Func
tions
Automatic Torque Boost
• If the automatic torque boost is selected in the torque boost selection (A041/A241: 01), it operates
to adjust the output frequency and voltage automatically, depending on the load level.
(In actual control, the automatic torque boost is used along with the manual torque boost.)
• To select the automatic torque boost, set motor capacity selection H003/H203 and motor pole
number selection H004/H204 correctly according to your motor.
• To avoid a possible overcurrent trip during deceleration, set the AVR selection to "Always ON"
(A081: 00).
• If the automatic torque boost cannot provide the desired characteristics, adjust each item, as
shown in the following table.
Control Method (V/f Characteristics)
You can set V/f characteristics (output voltage/output frequency).
* To switch to the 2nd/3rd control, allocate 08 (SET)/17 (SET3) to the desired multi-function input and then turn it
on.
*1. Refer to "Sensorless Vector Control" (page 4-113).
*2. Refer to "0-Hz Sensorless Vector Control" (page 4-114).
Phenomenon
Adjusting method
Adjustment item
Insufficient torque at low
speed
(Motor does not run at low
speed.)
Gradually increase the voltage setting of the manual torque boost.
A042/A242
Gradually increase the slip compensation gain of the automatic
torque boost.
A047/A247
Gradually increase the voltage compensation gain of the automatic
torque boost.
A046/A246
Reduce the set value of the carrier frequency.
b083
Rotation speed lowers
when load is applied.
Gradually increase the slip compensation gain of the automatic
torque boost.
A047/A247
Rotation speed increases
when load is applied.
Gradually reduce the slip compensation gain of the automatic torque
boost.
A047/A247
Overcurrent trip occurs
when load is applied.
Gradually reduce the voltage compensation gain of the automatic
torque boost.
A046/A246
Gradually reduce the slip compensation gain of the automatic torque
boost.
A047/A247
Gradually reduce the voltage setting of the manual torque boost.
A042/A242
Parameter No.
Function name
Data
Default setting
Unit
A044
V/f characteristics
selection
00: Constant torque characteristics (VC)
01: Special reduced torque
characteristics (Special VP)
02: Free V/f characteristics
(Only A044/A244 can be set.)
03: Sensorless vector control (SLV)
(Only A044/A244 can be set.
*1
)
04: 0-Hz sensorless vector control
(Only A044/A244 can be set.
*2
)
05: Sensor vector control (V2)
(Only A044 can be set.)
00
⎯
A244
*2nd V/f characteristics
selection
A344
*3rd V/f characteristics
selection
Related functions
A046, A246, A047, A247, A082, H003, H203, H004, H204
Содержание 3G3RX Series
Страница 1: ...Cat No I560 E1 03 USER S MANUAL SYSDRIVE RXSERIES High function General purpose Inverter ...
Страница 2: ......
Страница 17: ...Chapter 1 Overview 1 1 Functions 1 1 1 2 Appearance and Names of Parts 1 4 ...
Страница 22: ......
Страница 23: ...Chapter 2 Design 2 1 Installation 2 1 2 2 Wiring 2 6 ...
Страница 48: ......
Страница 108: ......
Страница 324: ......
Страница 325: ...Chapter 5 Maintenance Operations 5 1 Protective Functions and Troubleshooting 5 1 5 2 Warning Function 5 10 ...
Страница 337: ...Chapter 6 Inspection and Maintenance 6 1 Inspection and Maintenance 6 1 ...
Страница 348: ......
Страница 349: ...Chapter 7 Specifications 7 1 Standard Specification List 7 1 7 2 Dimensional Drawing 7 6 7 3 Options 7 14 ...
Страница 358: ...7 9 7 2 Dimensional Drawing 7 Specifications 3G3RX A2300 A4300 368 79 265 310 10 510 540 2 φ10 195 45 80 265 ...
Страница 360: ...7 11 7 2 Dimensional Drawing 7 Specifications 3G3RX A2550 380 670 700 2 φ12 12 380 480 250 352 79 ...
Страница 361: ...7 12 7 2 Dimensional Drawing 7 Specifications 3G3RX A4750 A4900 2 φ12 2 12 300 390 268 700 79 670 357 ...
Страница 362: ...7 13 7 2 Dimensional Drawing 7 Specifications 3G3RX A411K A413K 2 φ12 2 12 380 480 270 740 79 710 480 ...
Страница 369: ...7 20 7 3 Options 7 Specifications 3G3AX RBC4001 3G3AX RBC6001 100 150 280 300 5 70 100 70 150 390 410 5 ...
Страница 392: ......
Страница 393: ...Appendix Appendix 1 Parameter List App 1 Appendix 2 Product Life Curve App 41 Appendix 3 Life Alarm Output App 42 ...
Страница 436: ......
Страница 437: ...Index ...
Страница 441: ......