F09

Torque boost 1

‹This is a function for motor 1. The following can be

<Constant torque>

Output voltage V

selected:

F

0

9

T

R

Q

 

B

O

O

S

T

1

 

100%

Rated voltage 1

-- Selection of load characteristics such as automatic

#20.0

torque boost, square law reduction torque load,

proportional torque load, constant torque load.

-- Enhancement of torque (V/f characteristics), which is

10%

Base

#2.0 frequency 1

lowered during low-speed operation. Insufficient

magnetic flux of the motor due to a voltage drop in the

low-frequency range can be compensated.

 

Setting range

 

Characteristics selected

 

 

 

 

 

0.0

 

 

 

 

Automatic

torque

 

 

boost

characteristic

 

 

 

 

 

 

where the torque boost value of a constant

 

 

 

 

 

 

torque load (a linear change) is

 

 

 

 

 

 

automatically adjusted.

 

 

 

 

 

 

 

 

 

 

 

The motor tuning (P04 / A13) should be set

 

 

 

 

 

 

to "2" for this function is valid.

 

0.1 to 0.9

 

Square law

reduction torque for fan and

 

 

 

 

 

 

pump loads.

 

 

 

 

 

 

 

 

 

 

1.0 to 1.9

 

Proportional torque for middle class loads

 

 

 

 

 

 

between square law reduction torque and

 

 

 

 

 

 

constant torque (linear change)

 

2.0 to 20.0

 

Constant torque (linear change)

‹

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Torque characteristics(30HP or less)

 

 

 

 

 

 

<Square law reduction torque>

<Proportional torque>

Output voltage V

 

 

 

 

 

Output voltage V

100%

 

 

Rated voltage 1

100%

 

Rated voltage 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

#0.9

 

 

Base

#1.9

Base

 

 

 

 

 

 

 

 

 

 

17%

 

 

 

 

 

frequency 1

 

 

 

 

frequency 1

 

 

 

#0.1

 

 

 

17%

 

 

 

#1.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

Output frequency f

 

 

Output frequency f

 

 

 

 

 

 

 

 

 

<Constant torque>

 

 

 

 

 

 

 

 

 

Output voltage V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100%

 

 

Rated voltage 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

#20.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Base

 

 

 

 

 

 

 

 

 

23%

 

#2.0

frequency 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output frequency f

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

‹Torque characteristics(40HP or above)

 

 

 

 

 

<Square law reduction torque>

<Proportional torque>

Output voltage V

 

 

 

 

 

Output voltage V

 

 

 

 

100%

 

 

Rated voltage 1

100%

 

 

Rated voltage 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

#0.9

 

Base

 

#1.9

Base

 

 

 

 

 

 

 

 

 

18%

 

 

 

 

frequency 1

18%

 

 

 

frequency 1

 

 

 

#0.1

 

 

 

 

 

 

#1.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

Output frequency f

 

 

 

Output frequency f

 

 

 

 

 

 

 

 

0

Output frequency f

Note: As a large torque boost value creates overexcitation in the low-speed range, continued operation may cause the motor to overheating. Check the characteristics of the driven motor.

F10

Electric thermal O/L relay

( select)

F11

Electric thermal O/L relay

(level)

F12

Electric thermal O/L relay (Thermal time constant)

The electronic thermal O/L relay manages the output frequency, output current, and operation time of the inverter to prevent the motor from overheating when 150% of the set current value flows for the time set by F12 (thermal time constant).

‹This is a function for motor 1.

‹This function specifies whether to operate the electronic thermal O/L relay and selects the target motor. When a general-purpose motor is selected, the operation level is lowered in the low speed range according to the cooling characteristics of the motor.

F

1

0

E

L

C

T

R

N

 

O

L

1

 

 

 

 

 

 

 

 

 

 

 

 

 

Set value 0: Inactive

1:Active (for general-purpose motor)

2:Active (for inverter motor)

‹This function sets the operation level (current value) of the electronic thermal. Enter a value from 1 to 1.1 times the current rating value of the motor.

‹The set value "2" is set for the inverter motor because there is no cooling effect decrease by the rotational speed.

F

1

1

O

L

 

L

E

V

E

L

1

 

 

 

The setting range is 20 to 135% of the rated current of the inverter.

 

(%)

When F10 = 2

 

 

(%)

100

 

 

 

 

95

 

 

 

 

current

90

 

 

 

 

85

 

 

 

 

69

 

4030toto60HP45kW

 

level

54

0.25 to 30HP

(WWhenhenF10F10= 1)= 1)

(When F10 = 1)

 

 

 

 

 

 

 

Operation

 

 

 

(fb<60Hz)

 

 

fe=

fb

 

 

 

60Hz (fb60Hz)

 

 

 

 

fb:Base frequency

 

 

 

 

 

Fe x 0.33 Fe x 0.83 fe

Output frequency f0 (Hz)

Operation level current and output frequency

5-10

Page 57
Image 57
Fuji Bikes 5000G11S/P11S instruction manual F09 Torque boost, F10 Electric thermal O/L relay Select F11 Level F12