Hitachi LH1 Series

4-44
Chapter 4
For parameter configuration
[Hb110] to [Hb131]
Induction motor constants
Code/Name
Range (unit)
Initial
value
Hb110 Async.
Motor constant R1,
1st-motor
0.000001 to 1000.000000 (Ω)
Motor
capacity
setting
Hb112 Async.
Motor constant R2,
1st-motor
0.000001 to 1000.000000 (Ω)
Motor
capacity
setting
Hb114 Async.
Motor constant L,
1st-motor
0.000001 to 1000.000000 (mH)
Motor
capacity
setting
Hb116 Async.
Motor constant I0,
1st-motor
0.01 to 10000.00 (A)
Motor
capacity
setting
Hb118 Async.
Motor constant J,
1st-motor
0.00001 to 10000.00000
(kgm2)
Motor
capacity
setting
・If the motor capacity[Hb102] and number of poles
[Hb103] are changed, the motor characteristics are set
according to the internal Hitachi table values.
・For no-rotation auto-tuning, the following variables are
acquired:[Hb110] to [Hb114].
・For rotation auto-tuning, the following variables are
acquired:[Hb110] to [Hb118]
・It is possible to input the data obtained from the motor
manufacturer. However, it must also include the data of
the wiring and the like.
Minimum frequency setting
Code/Name
Range (unit)
Initial
value
Hb130 Minimum frequency
adjustment, 1st-motor
0.10 to 10.00(Hz)
0.50
Hb131 Reduced voltage start
time setting, 1st-motor
0 to 2000(ms)
36
・If the torque at the time of start-up is not enough, you
can change the setting to raise the lowest frequency.
・if the trip occurs when raised the minimum frequency, set
a longer "reduced voltage start time setting".
[Hb140] to [Hb146]
Manual torque boost adjustment
Code/Name
Range (unit)
Initial
value
Hb140 Manual torque
boost operation mode
selection, 1st-motor
00(Disabled)/
01(Always enable)/
02(Enable at
Forward rotation)/
03(Enable at
Reverse rotation)
01
Hb141 Manual torque
boost value, 1st-motor
0.0 to 20.0(%)
0.0
Hb142 Manual torque
boost peak speed, 1st-motor
0.0 to 50.0(%)
0.0
・The manual torque operation mode selection will allow to
restrict the boost to forward only or reverse only
operation.
・Example [Hb140]=02
Eco Drive function
Code/Name
Range (unit)
Initial
value
Hb145 Eco drive enable,
1st-motor
00(Disable)/
01(Enable)
00
Hb146 Eco drive response
adjustment, 1st-motor
0 to 100
050
・In V/f control, if the Eco Drive function is enabled, enters
an energy saving control.
FW
Output
frequency
Output
voltage
Minimum frequency
[Hb130]
00
10ms
60ms
･･･
Reduced voltage
start [Hb131]
Output
frequency
Base frequency (100%)
[Hb141]
[Hb142]
100
Output voltage (%)
Forward
Reverse
Base frequency (100%)