Instruction Manual

3-12 SP120 AC Drive Installation and Operation
English
Parameter
Number Parameter Name/ Description
Min./Max
Range Units
Factory
Default
V/F Characteristics / Boost
A41 Boost Select
Used to select auto or manual boost
Settings: 00=Manual Boost
01=Auto Boost
00 to 01 Numeric
Value
00
*A42 Manual Boost Voltage
Sets the boost level as a percent of A82 [
BASE VOLTAGE].
This parameter can be changed while motor is running.
0 to 99 1% of base
voltage
25
*A43 Manual Boost Frequency
Sets the boost frequency point as a percent of A03
[
BASE FREQUENCY]. Refer to diagram in A42 [MANUAL
BOOST VOLTAGE]
This parameter can be changed while motor is running.
0.0 to 50.0% 0.1% 2.0
A44
V/Hz Select
Used to select the V/Hz mode.
Settings: 00=Constant Torque
01=Variable Torque
00 to 01 Numeric
Value
00
*A45
Maximum Voltage Gain
Sets the voltage gain of the V/Hz characteristic. Value is
a percent of A82 [
BASE VOLTAGE].
This parameter can be changed while motor is running.
20 to 100 1% 100
A42
30Hz
Voltage
A43
100%
60 Hz
Frequency
99 ~ 20%
of Base Voltage at 0H
z
then linear scale down
e.g. 25 ~ 5%
1/2 Base
f
Base frequency
0
Voltage
100%
Base frequency
A44 = 00
Constant
Torque
A44 = 01
Variable
Torque
frequency
0
Voltage
100%
Base frequency
A45
20%
frequency