Veichi AC90 Manual page 111

Tension control frequency inverter
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AC90 TENSION CONTROL FREQUENCY INVERTER MANUAL
F6.11
Max output torque
100.00% is corresponding to rated current.
Constant power area torque
F6.12
compensation start frequency
Constant power area torque
F6.13
compensation coefficient
Constant power area torque compensation start frequency: Set start frequency of torque compensation in constant
power area under VC control. 100.00% is corresponding to motor rated frequency.
Constant power area torque compensation coefficient: Set coefficient of torque compensation in constant power
area. The coefficient is bigger, the compensation is bigger. While this function is on, it effectively helps to improve load
capability at motor weak magnetic area.
Constant power area limit start
F6.14
frequency
F6.15
Constant power area limit value
Constant power area limit start frequency: Set to switch to start frequency of torque limitation in constant power area
under VC control. 100.00% is corresponding to motor rated frequency.
Constant power area limit value: Set limitation of torque in constant power area. It can effectively anti motor stall at
weak magnetic area by reduce this limitation properly.
F6.16
DEC over-excitation selection
F6.17
DEC over-excitation current setting
F6.18
DEC over-excitation gain
DEC over-excitation selection: 0: off; 1: on
DEC over-excitation current setting: It sets the excitation current while DEC over-excitation.
DEC over-excitation current= motor rated current * DEC over-excitation current setting
DEC over-excitation gain: It is used to adjust the excitation magnetic field building speed. This function can keep
stable excitation flux. So that frequency inverter can quickly stop. The magnetic field need time to build up. If the gain is
too big, it is easy to cause over current (E.OC).
Note: 1,It is easy cause over heat if use DEC over-excitation frequently. So we suggest to add right brake resistor if
need quick stop/start frequently.2, Set right DEC time to avoid E.OU2 (over voltage). 3, If input run order while DEC
over-excitation, it will ACC to setting frequency again.
Setting range: 20.0-200.0%
Setting range: 100.0-500.0%
Setting range: 0-100%
Setting range: 100.0%-500.0%
Setting range: 50-200%
Setting range: 0-1
Setting range: 50.0-200.0%
Setting range: 0.00-1.50
106
Function Parameter specifications
Factory set: 180.0%
Factory set:120.0%
Factory set: 30%
Factory set: 200.0%
Factory set: 120%
Factory set: 0
Factory set: 115.0%
Factory set: Accord model

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