25
Parameters & Programming
1
U = 60 Hz default settings, K = 50 Hz default settings. Settable using
P
b85 – [Factory Default Select]
Parameter
Number
Parameter Name / Description
Min./Max
Range
Units
Factory
Defaults
V/F Characteristics / Boost
U
1
K
1
A41
[Boost Select]
Used to select auto or manual boost
Settings:
00=Manual Boost
01=Auto Boost
00/01
Numeric
Value
00
00
A42
[Manual Boost Voltage]
Sets the boost level as a percent of
P
A82 - [Base
Voltage].
This Parameter
can be changed while motor is running.
0/99
Numeric
Value
25
11
A43
[Manual Boost Frequency]
Sets the boost frequency point as a percent of
P
A03 -
[Base Frequency].
Refer to diagram in
PA42 –
[Manual Boost Voltage]
This Parameter
can be changed while motor is running.
0.0/50.0%
0.1%
2.0
10.0
A44
[V/Hz Select]
Used to select the V/Hz mode.
Settings:
00=Constant Torque
01=Variable Torque
00/01
Numeric
Value
00
00
A45
[Maximum Voltage Gain]
Sets the voltage gain of the V/Hz characteristic.
Value is a percent of
P
A82 - [Base Voltage].
This Parameter
can be changed while motor is running.
50/100
1%
100
100
Voltage
100%
A42
A43
30Hz
60Hz
99 = 20%
of Base Voltage at 0Hz,
then linear scale down
e.g. 25 = 5%
~
~
1/2 Base
frequency
Base frequency
Frequency
Voltage
A44 = 00
Constant
Torque
A44 = 01
Variable
Torque
100%
0
Base frequency
frequency
Base frequency
frequency
100%
50%
A45
0
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