Filter
Top Products
73
Increasing the starting torque (Pr. 0)
<V/F>
5
ADJUSTMENT
5.2 Increasing the starting torque (Pr. 0)
<V /F>
Set this parameter when "the motor with a load will not rotate", "an alarm [OL] is output, resulting in an inverter
trip due to [OC1], etc.
Parameter
Number
Name Initial Value
Setting
Range
Description
0 Torque boost
0.75K
6%
0 to 30%
Motor torque in the low-
frequency range can be
adjusted to the load to increase
the starting motor torque.
1.5K to 3.7K
4%
5.5K, 7.5K
3%
11K to 37K
2%
45K, 55K
1.5%
75K or higher
1%
Changing example
When the motor with a load will not rotate,
increase the Pr. 0 value 1% by 1% unit by
looking at the motor movement. (The guideline
is for about 10% change at the greatest.)
REMARKS
· Setting Pr.0 too high may cause the motor to overheat, resulting in an overcurrent trip (OL (overcurrent alarm) then E.OC1
(Overcurrent trip during acceleration)), thermal trip (E.THM (Motor overload trip), and E.THT (Inverter overload trip)).
When a fault (E.OC1) occurs, release the start command, and decrease the Pr. 0 value 1% by 1% to reset. (Refer to page 122.)
POINT
If the inverter still does not operate properly after taking the above measures, set Pr. 80 Motor capacity and select the
Simple magnetic flux vector control [extended mode]. (Refer to Chapter 4 of the Instruction Manual (Applied).)
V/F
V/F
V/F
Output
voltage
P
r. 0
P
r.46
Setting
range
Base
frequency
0
100%
Output
frequency
(Hz)
1.Screen at power-ON
The monitor display appears.
Display
Operation
The initial value
differs according
to the capacity.
3.Press to choose the parameter
setting mode.
4. Pr. 0) appears.
Flicker ··· Parameter setting complete!!
7.Press to set.
PU indicator is lit.
2.Operation mode setting
Press to choose the PU operation mode.
· Press to show the setting again.
· Press twice to show the next parameter.
· By turning , you can read another parameter.
The parameter
number read
previously appears.
6.Turn to change it to the set value
" ".
5.Press to read the present set value.
" "(initial value is 6% for the 0.75K)
appears.