Hitachi SJ Series, User Manual

Page: 223 / 786

12-9-6
Chapter 12 Inverter Function
Parameter
• Even the setting of 1000 V for all of the free V/f
voltages 1 to 7 will not enable the inverter to
output a voltage that is higher than the input
voltage or the motor's voltage selection.
• Set the characteristics very carefully because
inappropriate characteristic settings may cause
over current to happen during the acceleration or
deceleration and/or may cause machine vibration.
Item Parameter Data Description
Control mode [AA121] 02: Free V/f (IM) To use the free V/f (IM)
Stability constant [HA110] 0~1000(%)
To adjust the control for reducing the
hunting of motors.
Base frequency [Hb104]
10.00 to the maximum
frequency (Hz)
To set the base frequency of motors.
Maximum
frequency
[Hb105]
Base frequency to 590.00
(Hz) To set the maximum frequency of
motors.
Motor's rated
voltage
[Hb106] 1~1000 (V) Set the rated voltage of motors.
Free V/f
frequency 7
[Hb162]
[Hb160] to the base
frequency (Hz)
Set the frequency at each break
point.
Free V/f
frequency 6
[Hb160] [Hb158]~[Hb162] (Hz)
Free V/f
frequency 5
[Hb158] [Hb156]~[Hb160] (Hz)
Free V/f
frequency 4
[Hb156] [Hb154]~[Hb158] (Hz)
Free V/f
frequency 3
[Hb154] [Hb152]~[Hb156] (Hz)
Free V/f
frequency 2
[Hb152] [Hb150]~[Hb154] (Hz)
Free V/f
frequency 1
[Hb150] 0.00~[H152](Hz)
Free V/f voltage 7 [Hb163]
0.0~1000.0(V)
Set the output voltage at each break
point.
Free V/f voltage 6 [Hb161]
Free V/f voltage 5 [Hb159]
Free V/f voltage 4 [Hb157]
Free V/f voltage 3 [Hb155]
Free V/f voltage 2 [Hb153]
Free V/f voltage 1 [Hb151]
！
0 f6 f7
V6
V7
A voltage that can be outputted
or the motor's rated voltage
Output voltage (V)
Output frequency (Hz)
Motor's rated
voltage
Base
frequency