Goodrive18 series two-in-one VFD Function parameters and function terminal reuse
-43-
saturation
coefficient 3 for
the iron core of
AM
Magnetic
saturation
coefficient 4 for
the iron core of
AM
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 30 Hz.
2: Variable-frequency motor (without low speed
compensation). Because the heat-releasing of
the specific motors is not impacted by the
rotation speed, it is not necessary to adjust the
protection value during low-speed running.
Motor overload
protection
coefficient
Motor overload multiple 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, 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
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