Goodrive20-EU series VFD Function parameters
47
Detailed instruction of parameters
Magnetic
saturation
coefficient 4 for
the iron core of
async-motor 1
Motor overload
protection
selection
0: No protection
1: Common motor (with low speed
compensation). Because the heat-releasing
effect of the common motors will be weakened,
the corresponding electric heat protection will be
adjusted properly. The low speed compensation
characteristic mentioned here means reducing
the threshold of the overload protection of the
motor whose running frequency is below 30Hz.
2: Frequency conversion motor (without low
speed compensation). Because the
heat-releasing of the specific motors won't be
impacted by the rotation speed, it is not
necessary to adjust the protection value during
low-speed running.
Motor overload
protection
coefficient
Times of motor overload M = Iout/(In*K)
In is the rated current of the motor, Iout is the
output current of the VFD and K is the motor
protection coefficient.
So, the bigger the value of K is, the smaller the
value of M is. 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.
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