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51
V/f Control
Chapter 5-2
5-2
V/f Control
Setting the V/f Patterns (n09 to n15)
• Set the V/f pattern so that the motor output torque is adjusted to the
required load torque.
• The J7AZ incorporates an automatic torque boost function. Therefore, a
maximum of 150% torque can be output at 3 Hz without changing the
default settings. Check the system in trial operation and leave the default
settings as they are if no torque characteristic changes are required.
Note
1.
Values will be set in 0.1-Hz increments if the frequency is less than 100 Hz
and 1-Hz increments if the frequency is 100 Hz or greater.
n09
Maximum Frequency (FMAX)
Changes during
operation
No
Setting
range
50.0 to 400 Hz
Unit of
setting
0.1 Hz
(see note 1)
Default setting
60.0
n10
Maximum Voltage (VMAX)
Changes during
operation
No
Setting
range
1 to 255 (V)
(see note 2)
Unit of
setting
1 V
Default setting
200
(see note 2)
n11
Maximum Voltage Frequency (FA)
Changes during
operation
No
Setting
range
0.2 to 400 (Hz)
Unit of
setting
0.1 Hz
(see note 1)
Default setting
60.0
n12
Middle Output Frequency (FB)
Changes during
operation
No
Setting
range
0.1 to 399 (Hz)
Unit of
setting
0.1 Hz
(see note 1)
Default setting
1.5
n13
Middle Output Frequency Voltage (VC)
Changes during
operation
No
Setting
range
1 to 255 (V) (see note 2)
Unit of
setting
1 V
Default setting
12
(see note 2)
n14
Minimum Output Frequency (FMIN)
Changes during
operation
No
Setting
range
0.1 to 10.0 (Hz)
Unit of
setting
0,1 Hz
Default setting
1.5
n15
Minimum Output Frequency Voltage (VMIN)
Changes during
operation
No
Setting
range
1 to 50 (V) (see note 2)
Unit of
setting
1 V
Default setting
12
(see note 2)
Summary of Contents for J7 series
Page 12: ...XII...
Page 15: ...1 CHAPTER 1 Overview 1 1 Function 2 1 2 Nomenclature 3...
Page 54: ...40 Outline of Operation Chapter 3 2...
Page 102: ...88 Other Functions Chapter 6 7...
Page 158: ...144 Option Specifications Chapter 9 3...
Page 159: ...145 CHAPTER 10 List of Parameters List of Parameters 146...
Page 172: ...158 List of Parameters Chapter 10...
Page 173: ...159 CHAPTER 11 Using the Inverter for a Motor Using the Inverter for a Motor 160...