TEC TECDrive20-EU Series - Page 43

TECDrive20-EU Series Inverter Function parameters
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Function
code
Name
Description
Default
Modify
two of the motor lines (U, V and W). The motor
rotation direction can be changed by QUICK/JOG
on the keypad. Refer to parameter P07.02.
Note: When the function parameter comes back
to the default value, the motor's running direction
will come back to the factory default state, too. In
some cases it should be used with caution after
commissioning if the change of rotation direction
is disabled.
2: Forbid to run in reverse direction: It can be
used in some special cases if the reverse running
is disabled.
P00.14
Carrier
frequency
setting
Carrier
frequency
Electro magnetic
noise
Noise and leakage
current
Heating
eliminating
High
LowHigh
Low
High
Low
1kHz
10kHz
15kHz
Relationship between motor types and carrier
frequencies:
Motor type
Factory setting of carrier
frequency
0.4–11kW
8kHz
15–110kW
4kHz
The advantage of high carrier frequency: ideal
current waveform, little current harmonic wave
and motor noise.
The disadvantage of high carrier frequency:
increasing the switch loss, increasing inverter
temperature and the impact to the output
capacity. The inverter needs to derate on high
carrier frequency. At the same time, the leakage
and electrical magnetic interference will increase.
Applying low carrier frequency is contrary to the
above, too low carrier frequency will cause
unstable running, torque decreasing and surge.
The manufacturer has set a reasonable carrier
Depend
on
model
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