Hitachi LH1 Series Basic Manual page 84

Chapter 4
[Hb110] to [Hb131]
Induction motor constants
Code/Name
Hb110
Async.
0.000001 to 1000.000000 (Ω)
Motor constant R1,
1st-motor
Hb112
Async.
0.000001 to 1000.000000 (Ω)
Motor constant R2,
1st-motor
Hb114
Async.
0.000001 to 1000.000000 (mH)
Motor constant L,
1st-motor
Hb116
Async.
0.01 to 10000.00 (A)
Motor constant I0,
1st-motor
Hb118
Async.
0.00001 to 10000.00000
Motor constant J,
(kgm2)
1st-motor
・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
Hb130
Minimum frequency
adjustment, 1st-motor
Hb131
Reduced voltage start
time setting, 1st-motor
・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".
FW
Minimum frequency
[Hb130]
Output
frequency
Output
Reduced voltage
voltage
00
start [Hb131]
Initial
Range (unit)
value
Motor
capacity
setting
Motor
capacity
setting
Motor
capacity
setting
Motor
capacity
setting
Motor
capacity
setting
Initial
Range (unit)
value
0.10 to 10.00(Hz) 0.50
0 to 2000(ms) 36
10ms ･･･ 60ms
For parameter configuration
Manual torque boost adjustment
Code/Name
Hb140
Manual torque
boost operation mode
selection, 1st-motor
Hb141
Manual torque
boost value, 1st-motor
Hb142
Manual torque
boost peak speed, 1st-motor
・The manual torque operation mode selection will allow to
restrict the boost to forward only or reverse only
operation.
・Example [Hb140]=02
Output voltage (%)
[Hb141]
Reverse
Base frequency (100%)
Eco Drive function
Code/Name
Hb145
Eco drive enable,
1st-motor
Hb146
Eco drive response
adjustment, 1st-motor
・In V/f control, if the Eco Drive function is enabled, enters
an energy saving control.
4-44
[Hb140] to [Hb146]
Initial
Range (unit)
00(Disabled)/
01(Always enable)/
02(Enable at
Forward rotation)/
03(Enable at
Reverse rotation)
0.0 to 20.0(%)
0.0 to 50.0(%)
100
Output
Forward
frequency
[Hb142] Base frequency (100%)
Initial
Range (unit)
value
00(Disable)/
01(Enable)
0 to 100 050
value
01
0.0
0.0
00