Astraada DRV-24 frequency inverters Function Parameters
38
Detailed instruction of parameters
Magnetic
saturation
coefficient 3
for the iron
core of AM1
Magnetic
saturation
coefficient 4
for the iron
core of AM1
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 inverter 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%, the fault will be
reported after 1 hour, when M =200%, the
fault will be reported after 1 minute, when
M>=400%, the fault will be reported instantly.
Setting range: 20.0%~120.0%
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