5.2 Increasing the starting torque (Pr. 0)
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.
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.)
Screen at power-ON
The monitor display appears.
2.Operation mode setting
to choose the PU operation mode.
to choose the parameter
to read the present set value.
"(initial value is 6% for the 0.75K)
to change it to the set value
· 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.)
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
1.5K to 3.7K
11K to 37K
75K or higher
Pr. 0) appears.
· By turning
, you can read another parameter.
to show the setting again.
twice to show the next parameter.
Increasing the starting torque (Pr. 0)
0 to 30%
PU indicator is lit.
Flicker ··· Parameter setting complete!!
the Instruction Manual (Applied).)
< V / F >
Motor torque in the low-
frequency range can be
adjusted to the load to increase
the starting motor torque.
The initial value
to the capacity.