12-3-3
Chapter 12
Inverter Functions
Automatic voltage regulation function (AVR
function)
• The inverter automatically operates the automatic
voltage regulation function (AVR function). This
function outputs voltage to the motor correctly even
with variation in the input voltage to the inverter.
• Output of a voltage larger than the input voltage is
not allowed even using this function.
• To use operation with conventional AVR function
being set OFF, make the setting in [bA146]
over-excitation function selection.
• [bA146]=02 for AVR OFF during deceleration.
• [bA146]=01 for AVR OFF all time.
Relation between frequency and voltage under
general V/f control (IM)
• General V/f control command is given in the
following with the base frequency and rated
voltage being set.
• At the frequency in the range from the base to max.
frequency, the output voltage reaches a max. of the
rated voltage of motor.
Control of general synchronous motor
• Basically the synchronous motor needs current
calculation control and the motor parameters need
to be set. The parameters in this item and motor
constants in the next item need to be set.
A
A
A
!
Output
voltage
Motor
Rated
voltage
Time (s)
Input voltage
Output voltage by AVR
function
Output
voltage
Motor
Rated
voltage (Ex.)
200V
Command
frequency (Hz)
Base
frequency
Max.
frequency
Summary of Contents for SJ Series
Page 39: ...5 4 Chapter 5 Included Items Memo ...
Page 55: ...6 16 Chapter 6 Installation Memo ...
Page 91: ...7 36 Chapter 7 Wire Connection and Optional Devices Memo ...
Page 135: ...9 40 Chapter 9 Operating Instructions Memo ...
Page 145: ...10 10 Chapter 10 Test Run Memo ...
Page 159: ...12 2 6 Chapter 12 Inverter Functions Memo ...
Page 169: ...12 3 10 Chapter 12 Inverter Functions Memo ...
Page 195: ...12 5 8 Chapter 12 Inverter Functions Memo ...
Page 217: ...12 8 12 Chapter 12 Inverter Function Memo ...
Page 287: ...12 10 32 Chapter 12 Inverter Functions Memo ...
Page 303: ...12 11 16 Chapter 12 Inverter Functions Memo ...
Page 349: ...12 15 8 Chapter 12 Inverter Function Memo ...
Page 395: ...12 17 34 Chapter 12 Inverter Functions Memo ...
Page 397: ...12 18 2 Chapter 12 Inverter Functions Memo ...
Page 415: ...12 19 18 Chapter 12 Inverter Function Memo ...
Page 581: ...15 10 Chapter 15 Optional Cassettes Memo ...
Page 591: ...16 10 Chapter 16 ProDriveNext EzSQ Memo ...
Page 642: ...18 49 Chapter 18 Tips FAQ Troubleshooting Memo ...
Page 650: ...19 8 Chapter 19 Maintenance and Inspection Memo ...
Page 781: ...Appendix 1 70 Appendix 1 List of Parameters Memo ...