E6582233
F-23
6
Reduction of rated current.
Ambient temperature
55
℃
or less *1
50
℃
or less
55
℃
*2
Carrier frequency
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.