83
4. Parameter description
Parameter
P.66
→
Please refer to P.22
P.70
→
Please refer to P.30
4.29
Brake Selection (P.71)
P.71
“
Idling braking and linear braking selection
”
Parameter
factory setting
Setting range
Remarks
71
0
0~1
---
<Setting>
•
When P.71=0, it is now idling braking. The output of the inverter will terminate immediately after
pressing
STOP
RESET
, and the motor will be
‘
racing
’
•
When P.71=1, it is now beeline brake. The output of the inverter will follow the
acceleration/deceleration curve after pressing
STOP
RESET
.
4.30
Carrier frequency (P.72)
P.72
“
Carrier frequency
”
Parameter
Type
factory setting
Setting range
Remarks
0.2~7.5KW
5kHz
0.7~10 kHz
11~22KW
5kHz
0.7~9 kHz
72
30~160KW
4kHz
0.7~6 kHz
---
<Setting>
•
The higher the carrier frequency is, the lower the motor acoustic noise is. Unfortunately, greater
leakage current and larger noises generated by the inverter are resulted in.
•
The higher the carrier frequency is, the more energy is dissipated, and the higher the temperature of
the inverter is.
•
In case a mechanical resonance occurs in a system with the inverter, P.72 is helpful for improved
the performance just by adjusting its value.
Note: 1.The optimum carrier frequency shall be over 8 times greater than the target frequency.
2. When the inverter
overheating and
carrier frequency is over 2kHz, the carrier frequency will be 2kHz
automatically.
P.73
→
Please refer to P.38
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