INVT Goodrive350 Series Operation Manual page 127

Goodrive350 series high-performance multi-function inverter
Function
Name
code
P00.13 Running direction
Carrier frequency
P00.14
setup
Detailed parameter description
0Hz.
Goodrive350 series inverter defines four groups of
acceleration and deceleration time, which can be
selected via multi-function digital input terminals
(P05 group). The acceleration/deceleration time of
the inverter is the first group by default.
Setting range of P00.11 and P00.12: 0.0–3600.0s
0: Run in default direction
1: Run in reverse direction
2: Reverse running is prohibited
Carrier
Electro magnetic
frequency
noise
1kHz
10kHz
15kHz
The relation between the model and carrier
frequency is shown below.
Model
1.5–11kW
380V 15–55kW
Above 75kW
22–55kW
660V
Above 75kW
Advantages of high carrier frequency are as follows:
ideal current waveform, few current harmonics and
small motor noise.
Disadvantages of high carrier frequency are as
follows: growing switch consumption, enlarged
temperature rise, impacted output capacity; under
high carrier frequency, the inverter needs to be
derated for use, meanwhile, the leakage current will
increase, which increases electromagnetic
interference to the surroundings.
While low carrier frequency is the contrary. Low
carrier frequency will cause unstable operation at
low frequency, decrease the torque, or even lead to
-122-
Noise and leakage
current
High Low
Low High
Default value of
carrier frequency
8kHz
4kHz
2kHz
4kHz
2kHz
Chapter 6
Default
value
0
Cooling
level
Low
High
Depend
on model
Modi
fy
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