V
0
100%
frequency
Reduced
torque
Constant
torque
V/F Characteristics
Func-
code
Name
Description
Torque boost
mode selection
Manual torque
boost setting
Manual torque
boost frequency
setting
V/F
characteristic
curve selection
V/F gain setting
Defaults
A28
A29
A30
A31
A32
Sets the frequency of the V/F breakpoint
A in graph for torque boost
0
10.0%
100.0%
2
¡
¡
Two options: 0.... Manual torque boost
1.... Automatic torque boost
Two available V/F curves: three select
codes:
0... Constant torque
1... Reduced torque(reduction of the 1.7th
power)
2... Sensorless vector control
A32
V
100%
20%
0
frequency
Sets output voltage gain of the inverter
from 20 to 100%
¡
Can boost starting torque between 0 and
100% above normal V/F curve, from 0 to
1/2 base frequency
Be aware that excessive torgue boost can
cause motor damage and inverter trip.
¡
Run-
time
Edit
5.0%
¡
9-9
V
0
5.0%
6.0Hz
=60.0Hz
A29=5.0%
A30=10.0%
100%
A
frequency
base frequency
ENDA E-100
INSTRUCTION MANUAL