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Chapter 6 Parameter Description
57
When standard AC motor is used, it corresponds to the motor rated voltage. Refer to motor nameplate.
The frequency upper limit f
H
and frequency lower limit f
L
are the maximum and minimum operating
frequency of the motor set according to the production process requirement by the user during the use.
The basic operating frequency f
b
is the minimum frequency corresponding to the maximum output
voltage of the inverter. When standard AC motor is used, it corresponds to the rated frequency of the
motor. Refer to the motor nameplate.
Fig.6
−
2 Characteristic parameter definition
Effect of the torque boost function: when the inverter operation at low
−
frequency, increase the output
voltage, and offset the stator voltage drop to product enough torque, so as to ensure the normal
operation of the motor.
Note:
The torque boost amplitude should be set according to the load situation. Excessive boost will
cause large current impact during the startup process.
When P0.16 is set to 0.0, and P4.00 is set to 0 (linear V/F curve), the automatic torque boost is
enable; when P4.00 is set to a non
−
zero value, the automatic torque boost is disabled.
6.2 Main and Auxiliary Reference Parameter (Group P1)
In process open loop control mode (P0.03=0), the main reference value f
m
will be added with an auxiliary
reference value f
a
, and it results in process open loop combination frequency reference f
com
.
P1.01
f
m
f
a
f
com
Fig.6
−
3 Open loop main and auxiliary reference combination
P0.16
Torque boost
0.0~30.0 %(0.0%)
P1.00
0~2(0)
P1.01
Open loop reference main and auxiliary relation
calculation
0~5(0)
f
L
f
H
输出频率
f
b
f
max
输出电压
V
max
Output voltage
Output frequency
f
L
f
H
输出频率
f
b
f
max
输出电压
V
max
Output voltage
Output frequency
Open loop auxiliary reference mode
