INVT GD300-01A, Operation Manual

Page: 47 / 187

Goodrive300-01A series VFD for air compressor Function description
-41-
Function
code
Name Description Default Modify
P02.21
Direct-axis
inductance of
SM 1
0.01
–655.35mH
Model
depended
○
P02.22
Quadrature-axis
inductance of
SM 1
0.01
–655.35mH
Model
depended
○
P02.23
Counter-emf
constant of SM
1
0
–10000
350
○
P02.26
Overload
protection
selection of
motor 1
0: No protection
1: Normal motor (with low speed
compensation)
2: Variable-frequency motor (without low
speed compensation)
2
◎
P02.27
Overload
protection
coefficient of
motor 1
Motor overload multiple M = Iout/(In*K)
In is rated motor current, Iout is VFD output
current, K is motor overload protection
coefficient.
A smaller value of K indicates a bigger value
of M.
When M=116%, protection is performed after
motor overload lasts for 1 hour; when
M=150%, protection is performed after motor
overload lasts for 12 minutes; when
M=180%, protection is performed after motor
overload lasts for 5 minutes; when M=200%,
protection is performed after motor overload
lasts for 60 seconds; and when M
≥
400%,
protection is performed immediately.
1
5
12
60
116%
200%
Time t (min)
Times of motor
overload
150% 180%
Setting range: 20.0%
–120.0%
100.0%
○