114
4. Parameter description
Parameter
time
Output
frequency
time
P.13
P. 243
P.244
DC injection
brake voltage
4.58 The cooling fan operation selection
(
P.245
)
P.245
“
The cooling fan operation selection
”
Parameter
Factory setting
Setting range
Remarks
245
0
0~3
---
<Setting>
•
When P.245=0, fan on when the inverter runs, and 30s after the inverter stops, fan will be off.
•
When P.245=1, if the power on, the fan will operate always, if the power off, the fan will be off.
•
When P.245=2,
if the inverter is operating, and the temperature of heat sink is more than 60
℃
, the
fan will be on, when the temperature of heat sink is less than 40
℃
, the fan will be off, if the
inverter stops, the fan will be off.
•
When P.245=3, the temperature of heat sink is more than 60
℃
, the fan will operate. the temperature
of heat sink is less than 40
℃
, the fan will be off.
4.59 Modulation coefficient
(
P.246
)
P.246
“
Modulation coefficient
”
Parameter
Factory setting
Setting range
Remarks
246
1.00
0.90~1.20
---
●
P. 246 is used to determine the ratio of the maximum output voltage and the input voltage.
Users
can use this parameter to get the output voltage which is higher than the input voltage.
But now the
output voltage waveform will generate distortion, contains every harmonic and increase the motor
torque harmonic and noise.
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