Chapter 6 Basic Functions
6-16
Caution
90 ~ 160 kW product’s acceleration initial value is 60.0sec and deceleration initial
value is 90.0sec. Please do not confuse that displayed value at left bottom of keypad
is D : 20.0, D : 30.0 it is applied for below 75kW product.
BAS-09 Time scale : Used when precise Acc/Dec time is required due to the load
characteristics or it is necessary to increase the maximum set time. It changes the units
of all the functions related to time.
Setting Range of Acc/Dec Time Precision
0 0.01 sec 0.00 ~ 60.00 Settable to 0.01 second
1 0.1 sec 0.0 ~ 600.0 Settable to 0.1 second
2 1 sec 0 ~ 6000 Settable to 1 second
Caution
Be careful because change of the unit leads to change of maximum settable time. If
you change BAS-09 Time scale to 0(0.01sec) with Acc time set at 1000.0 seconds, the
Acc time becomes 600.00 seconds.
2) Setting of Acc/Dec Time Based on Operating Frequency
Group Code No. Function Display Setting Display Setting Range Unit
DRV
03 Acc Time - 20.0 0~600 sec
04 Dec Time - 30.0 0~600 sec
BAS 08 Ramp T Mode 1 Delta Freq Max Freq/Delta Freq -
If you set BAS-08 as Delta Freq, you can set the Acc/Dec time by the time it takes the
current frequency during operation at steady speed to reach the target frequency of the
next step. If you set the Acc time at 5 seconds in case of step operation between 10Hz and
30Hz while it is static, the Acc time is as follows.
G
57
1
2
Operating
frequency
Operating
Command
5 Sec 5 Sec
Time
[Sec]
30 Hz
10 Hz
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