Best Power 0.75G/1.5P-T4, Руководство пользователя

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54
Chapter 6 P0 group basic function
P0-14
Lower limit
frequency
0.00Hz
～
Upper limit frequency P0-12 Default
：
0.00Hz
When the running frequency is lower than the lower limit frequency, the inverter can
choose to stop, run at the lower limit frequency or run at zero speed, set by P8-14
。
P0-15 Carrier frequency 0.5kHz
～
16.0kHz depending
This function is used to adjust the carrier frequency to reduce motor noise, avoid
mechanical resonance points, and reduce ground leakage current and interference.
When the carrier frequency is low, the output current higher harmonic component
increases, the motor loss increases, and the motor temperature rise increases. When
the carrier frequency is high, the motor loss is reduced, the motor temperature rise is
reduced, but the temperature rise of the inverter is increased, and the interference is
increased.
。
Adjusting the carrier frequency will affect the following performance
：
Carrier
frequency
Motor noise Output current
wave
Motor
temperature
rise
Inverter
temperature
rise
Leakage
current
External
radiation
interferce
Low Big Bad High Low Small Small
High Small Good Low High Big Big
The frequency setting of the carrier frequency is different for inverters with different
powers. If the carrier frequency is set higher than Default, the temperature rise of the
inverter radiator will increase. At this time, the user needs to derate the inverter,
otherwise the inverter has the danger of overheating alarm.
。
P0-16
Carrier frequency is
adjusted with
temperature
0
：
no 1
：
yes Default
：
1
When the inverter detects that its own temperature is high, it automatically reduces
the carrier frequency to reduce the temperature rise of the inverter. When the
temperature is low, the carrier frequency is gradually restored to the set value. This
function can reduce the chance of the inverter overheating alarm
。
P0-17
Acceleration time 1
0.00s
～
65000s depending
P0-18
Deceleration time 1
0.00s
～
65000s depending
加
Acceleration time refers to the time required for the inverter to accelerate from zero
frequency to the acceleration/deceleration reference frequency (P0-25), see t1 in
Figure 6-1.
Deceleration time refers to the time required for the inverter to decelerate to the zero
frequency from the acceleration/deceleration reference frequency (P0-25), see t2 in Figure 6-
1.
。