9-8
Function Parameters
AC10 Inverter
F139 Square compensation
Setting range:
1: 1.5
2: 1.8
3: 1.9
4: 2.0
Mfr’s value: 1
When F106=2, the function of F137 is valid.
To compensate low-frequency torque controlled
by V/F, output voltage of inverter while
low-frequency should be compensated.
When F137=0, linear compensation is chosen
and it is applied on universal constant-torque
load;
When F137=1, square compensation is chosen
and it is applied on the loads of fan or water
pump;
When F137=2, user-defined multipoint
compensation is chosen and it is applied on the
special loads of spin-drier or centrifuge;
Figure 9-3 Torque Promotion
This parameter should be increased when the load is heavier, and this parameter should be
decreased when the load is lighter.
If the torque is elevated too much, the motor overheats easily, and the current of inverter will be
too high. Please check the motor while elevating the torque.
When F137=3, auto torque compensation is chosen and it can compensate low-frequency
torque automatically, to diminish motor slip, to make rotor rotary speed close to synchro rotary
speed and to restrain motor vibration. Customers should correctly set motor power, rotary
speed, numbers of motor poles, motor rated current and stator resistance. Please refer to the
chapter “Operation process of measuring motor parameters”.
F140 User-defined frequency point F1 Setting range: 0
～
F142
Mfr’s value: 1.00
F141 User-defined voltage point V1
Setting range: 0
～
100
％
Mfr’s value: 4
F142 User-defined frequency point F2 Setting range: F140
～
F144 Mfr’s value: 5.00
F143 User-defined voltage point V2
Setting range: 0
～
100
％
Mfr’s value: 13
F144 User-defined frequency point F3 Setting range: F142
～
F146 Mfr’s value: 10.00
F145 User-defined voltage point V3
Setting range: 0
～
100
％
Mfr’s value: 24
F146 User-defined frequency point F4 Setting range: F144
～
F148 Mfr’s value: 20.00
F147 User-defined voltage point V4
Setting range: 0
～
100
％
Mfr’s value: 45
F148 User-defined frequency point F5 Setting range: F146
～
F150 Mfr’s value: 30.00
F149 User-defined voltage point V5
Setting range: 0
～
100
％
Mfr’s value: 63
F150 User-defined frequency point F6 Setting range: F148
～
F118 Mfr’s value: 40.00
F151 User-defined voltage point V6
Setting range: 0
～
100
％
Mfr’s value: 81
Multi-stage V/F curves are defined by 12 parameters from F140 to F151.
The setting value of V/F curve is set by motor load characteristic.
Note:
V1<V2<V3<V4<V5<V6，F1<F2<F3<F4<F5<F6.
As low-frequency, if the setting voltage is too
high, motor will overheat or be damaged. Inverter will be stalling or occur over-current
protection.
20
f
Turnover
frequency
V
（％）
1
TC-Hydraulik - R
ü
sdorfer Str. 8 - 25746 Heide - Lars Lornsen - T: +49 481 909 - 34 - [email protected] - www.tc-hydraulik.de
