E6582233
F-23
6
Reduction of rated current.
Ambient temperature
55
℃ or less *1 50℃ or less 55℃ *2
Carrier frequenc
2-4kHz 4.1-12kHz 4.1-12kHz
VFNC3E-4004P 1.5A 1.2A 1.1A
VFNC3E-4007P 2.3A 1.5A 1.2A
VFNC3E-4015P 4.1A 4.0A 3.6A
VFNC3E-4022P 5.5A 4.2A 4.0A
VFNC3E-4037P 9.5A 8.8A 8.1A
VFNC3E-4055P 12.6A 9.5A 8.8A
VFNC3E-4075P 17.0A 16.2A 15.4A
VFNC3E-4110P 24.0A 17.0A 16.2A
*1 If ambient temperature exceeds 50°C, take the upper danger label off.
*2 If ambient temperature exceeds 55°C, take the upper danger label off and reduce current according to table
above.
★ The table above is the value when the inverter is installed in general described in section 1.4.4.
★ If is set to or , the carrier frequency will decrease automatically with increase in current in order
to secure the rated current at frequencies of 4 kHz or less.
★ If , and current is increased to the automatic reduction level, the alarm occurs, if current is
increased further trips.
★ Random mode is exercised when the motor is operated in a low-frequency range where it produces annoying
acoustic noise.
If the carrier frequency () is set above 8 kHz, the random mode function will not be performed,
because the level of motor magnetic noise is low at high frequencies.
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