N700 Operating Instructions and Parts Manual
6. Explanation of F-Group Function
52
6.10
Motor Control method (F012/F212)
z
Set V/f (output voltage/ output frequency) characteristic
z
To change 1st / 2nd control system (V/f characteristic), set 8(SET2) to an intelligent input
terminal and switch it ON. (Refer to chapter 9. Explanation of I-Group Function)
Code
Function
name
Initial
value
Unit
Setting
range
Contents
0
VC : Constant torque characteristic
1
VP1 : Reduced torque characteristic (VP1.7 power)
2
VP2 : Reduced torque characteristic (VP2.0 power)
3
Free V/f : Free setting V/f characteristic
4
SLV-I : Indirect sensorless vector control
5
SLV-D : Direct sensorless vector control
6
V2 : Sensored vector control
F012
Motor
control
method
5
-
7
0Hz-V2 : 0Hz-Sensored vector control
0
VC : Constant torque characteristic
1
VP1 : Reduced torque characteristic (VP1.7 power)
2
VP2 : Reduced torque characteristic (VP2.0 power)
3
Free V/f : Free setting V/f characteristic
4
SLV-I : Indirect sensorless vector control
F212
Second
Motor
control
method
5
-
5
SLV-D : Direct sensorless vector control
Table 6- 10 Motor Control method (F012/F212)
(1) Constant torque characteristic (VC)
Output voltage outputs proportionally to the output frequency.
Output voltage outputs proportionally from 0 to the base frequency, but the output voltage from
the base frequency to the maximum frequency is constant regardless of frequency.
Fig. 6- 6 Constant torque characteristic Curve (VC)
< Constant torque characteristic
>
< Reduced torque characteristic >
