HNC Electric HV350 Series, Руководство пользователя

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HV350 Mini Frequency Inverter User Manual
64
output Frequency
output voltage
U
N
0
F
MAX
F
BASE
Fig. 6-12 Base voltage and frequency
P4.03 Intermediate voltage 1
Setting range:0
～
P4.04
P4.04 Intermediate voltage 2
Setting range:P4.03
～
100% (Inverter‘s rated voltage)
P4.05 Intermediate frequency 1 Setting range:0~P4.06
P4.06 Intermediate frequency 2 Setting range: P4.05~400.0Hz
P4.07 Torque boost
Setting range:0
～
20%(Inverter‘s rated voltage)
In order to compensate the torque drop at low frequency, the inverter can boost the output
voltage in the low frequency zone, which is shown in Fig. 6-13.
output
voltage
VN
Output
frequency
P4.04
0
P4.05 P4.06
F
P4.03
P4.07
BASE
Fig. 6-13 Torque boost
Note:
Generally, factory setting (2%) can satisfy most applications. If over-current fault occurs
during startup, please increase this parameter from zero gradually until it meets requirement. Pay
attention that large torque boost could damage equipment.
P4.08 Slip compensation
Setting range
：
0.0
～
10%(Rated speed P3.04)
In V/F control mode, motor's speed will be decreased with load rising. In order to ensure
the motor's speed be close to synchronous speed in rated load condition, slip compensation can be
done according to the preset frequency.