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6 - 3
6 Vector Control and Applied Functions
Multi-function Compact Inverter 3G3MX2-V1 User’s Manual (I585-E1)
6-1 Sen
sorless V
ect
or Co
ntro
l
6
6-
1-1 Sensorless V
ector Co
ntrol Paramete
r Settings
6-1
Sensorless Vector Control
The rotation speed of an induction motor, by its characteristic, decreases as the output torque increases.
Selecting sensorless vector control improves this relationship between the output torque and the rota-
tion speed of an induction motor, which results in a high output torque even at low speeds.
With sensorless vector control enabled, this inverter can output a high starting torque, 200% of the
motor rating, at 0.5Hz.
Moreover, this inverter also has a built-in auto-tuning function (rotation/stop method) that automatically
sets motor parameters.
• Set the 1st/2nd Control Method (A044/A244) to 03 (Sensorless vector control).
• Set the 1st/2nd Motor Capacity (H003/H203) and the 1st/2nd Motor Pole Number (H004/H204)
according to your motor.
• Set the rated frequency of the motor in the 1st/2nd Base Frequency (A003/A203) and set the rated
voltage of the motor in the 1st/2nd Motor Rated Voltage Selection (A082/A282).
• To use this function, set motor parameters for your motor according to
6-1-2 Offline Auto-tuning for
Motor Parameters
on page 6-4 and
6-1-3 Motor Parameter Settings
on page 6-9.
• In the light load mode and the PM motor mode, sensorless vector control cannot be selected.
Precautions for Correct Use
• The inverter may not provide sufficient performance characteristics due to the current accu-
racy if your motor is two or more sizes lower than its maximum applicable motor capacity.
• The motor may rotate in reverse at low frequencies (a few Hz), depending on the current
accuracy.
In this case, use the Reverse Rotation Prevention Selection (b046) function or refer to
6-1-4
Adjustments for Sensorless Vector Control
on page 6-10 to adjust the motor parameter set-
tings.
• If the incoming voltage to the inverter is higher than the rated voltage of the drive motor, set-
ting the 1st/2nd AVR Selection (A081/A281) to 01 (Always OFF) or 02 (OFF during decelera-
tion) may prevent normal operation as the current increases. In this case, set the 1st/2nd
AVR Selection to 00 (Always ON).
6-1-1
Sensorless Vector Control Parameter Settings
Parameter
No.
Function name
Data
Default data
Unit
A044/A244
1st/2nd Control Method
*1
*1. To enable the switching to the 2nd control, allocate one of the Multi-function Input S8 Selection (C008) to 08
(SET) and turn ON that terminal.
03: Sensorless vector control
00
−
H003/H203 1st/2nd Motor Capacity
*1
0.1/0.2/0.4/0.55/0.75/1.1/1.5/2.2/3.0/3.7/
4.0/5.5/7.5/11.0/15.0/18.5
Maximum
applicable
motor capacity
kW
H004/H204 1st/2nd Motor Pole Number
*1
2/4/6/8
10 to 488: Do not set.
4
pole
A003/A203
1st/2nd Base Frequency
*1
30.0 to 1st/2nd Maximum Frequency
(A004/A204)
60.0
Hz
A082/A282
1st/2nd Motor Rated Voltage
Selection
*1
200-V class: 200 V/215 V/220 V/230 V/
240 V
200
V
400-V class: 380 V/400 V/415 V/440 V/
460 V/480 V
400
V
Содержание SYSDRIVE MX2 SERIES
Страница 1: ...Multi function Compact Inverter MX2 Series Type V1 User s Manual I585 E1 01 3G3MX2 A V1 ...
Страница 32: ...CONTENTS 29 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Страница 108: ...2 Design 2 48 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Страница 176: ...4 Parameter List 4 42 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Страница 310: ...6 Vector Control and Applied Functions 6 68 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Страница 516: ...9 Overview of DriveProgramming 9 4 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Страница 538: ...10 Troubleshooting 10 22 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Страница 598: ...12 Options 12 50 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Страница 614: ...Appendices A 16 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Страница 615: ...I 1 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 I Index ...