
Chapter 6 Function Introduction
Shenzhen Hpmont Technology Co., Ltd
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70
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HD20 Series Inverters User Manual
6.2.9 Group F08 Asynchronous Motor 1 Parameters
The idling exciting current (F08.11) can be calculated by the motor’s rated current (F08.02) and
motor’s power factor (F08.05) or detected by motor auto-tuning (F08.06 = 2).
The relationship between rated torque current, idling exciting current and motor’s rated current is
below:
Rated torque current = F08.05 × F08.02
Idling exciting current F08.11 = �1 − F08.05
2
× F08.02
Mutual inductance F08.10 =
F08.01
2√3π × F08.03 × F08.11
− F08.09
Note: Except F08.03, F08.04 and F08.06, the other factory settings are depended on the inverter’s model.
No.
Name Description
Range
【
factory setting
】
F08.00
Rated power of motor 1
0.2
-
11.0kW
F08.01
Rated voltage of motor 1
0
-
999V
F08.02
Rated current of motor 1
0.01
-
99.99A
F08.03
Rated frequency of motor 1
1.0
-
400.0
【
50.0Hz
】
F08.04
Rated speed of motor 1
1
-
24000
【
1500rpm
】
F08.03 and F08.04 should be set in accordance with the parameters of motor nameplate.
F08.05
Power factor of motor 1
0.001
-
1.000
I1
I2
Io
R1
R2
Ll
Ll
L
m
U1
R2
1 - S
S
R1 = F08.07 (Stator resistance)
Ll = F08.09 (Leakage inductance)
R2 = F08.08 (Rotor resistance)
Lm = F08.10 (Mutual inductance)
Io = F08.11 (Idling exciting current)
S = Slip ratio