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7 Advanced Settings
High-function General-purpose Inverter RX2 Series User’s Manual
7-
5 Start
Con
dit
ion
s
7
7-5
-1 Select
ion of
R
educed V
o
ltage
S
ta
rtup
7-5
Start Conditions
This function allows you to make the inverter increase the voltage gradually when starting the motor
while outputting the minimum frequency.
The time to reach the output voltage for the reduced voltage start can be set with [Hb131].
Precautions for Correct Use
• Set a small value for the reduced voltage start selection [Hb131] 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.
• This function is effective only when V/f control (constant torque characteristics, reduced
torque characteristics, or free V/f control) is selected for the control method [AA121].
7-5-1
Selection of Reduced Voltage Startup
Item
Parameter
Data
Description
Default
data
Minimum fre-
quency adjust-
ment, 1st-motor
[Hb130]
0.00 to
10.00(Hz)
This is the start frequency.
0.50
Reduced voltage
start time setting,
1st-motor
[Hb131]
0 to 2000(ms)
Increases the output voltage over the set time,
from the operation start to the voltage command
equivalent to the minimum frequency.
36
FW
0ms 10ms
60ms
Output
frequency
Minimum
frequency
[Hb130]
Output voltage
Reduced voltage start
time [b131]
Summary of Contents for RX - 2
Page 1: ...High function General purpose Inverter RX2 Series User s Manual I620 E1 01 3G3RX2...
Page 54: ...1 Overview 1 22 High function General purpose Inverter RX2 Series User s Manual...
Page 136: ...2 Design 2 82 High function General purpose Inverter RX2 Series User s Manual...
Page 592: ...8 Applied Settings 8 192 High function General purpose Inverter RX2 Series User s Manual...
Page 754: ...11 Options 11 56 High function General purpose Inverter RX2 Series User s Manual...
Page 794: ...12 Troubleshooting 12 40 High function General purpose Inverter RX2 Series User s Manual...
Page 919: ......
