
Chapter 4 Explanation of Functions
4 - 43
4.2.33 Start frequency setting
The start frequency setting function allows you to specify the inverter
output frequency that the inverter initially outputs when an operation
command is input.
Use this function mainly to adjust the start torque.
If the start frequency (b082) is set too high, the inverter will start the motor with a full voltage, which will
increase the start current. Such status may trigger the overload restriction operation or make the inverter
prone to easily tripping because of the overcurrent protection.
Item
Function code
Range of data
Description
Start frequency
adjustment
b082
0.10 to 9.99 (Hz)
Setting of the start frequency
4.2.34 Reduced voltage start function
The reduced voltage start function enables you to make the inverter
increase the output voltage gradually when starting the motor.
Set a small value for the reduced voltage start selection (b036) if you
intend to increase the start torque. On the other hand, setting a small
value will cause the inverter to perform full-voltage starting and to easily
trip because of overcurrent.
Item
Function code
Range of data
Description
Reduced voltage start
selection
b036
00
Disabling the reduced voltage starting
01 to 255
01: Short (about 6 ms)
255: Long (about 1.53 s)
b082: Start frequency adjustment
Related code
b036: Reduced voltage start selection
b082: Start frequency adjustment
Related code
FW
Output frequency
Output voltage
b082
00
01
06
・・・
Reduced Voltage Start
b036
Start frequency
b082
FW
Output frequency
Output voltage
Содержание L700 Series
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Страница 237: ...Chapter 7 Specifications 7 5 L700 300 LFF HFF L700 450 550 LFF HFF 750 HFF 5 Cable hole φ25 5 Cable hole φ41 ...
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Страница 239: ...Chapter 7 Specifications 7 7 L700 900 to 1100HFF L700 1320 to 1600HFF ...
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