4-65
4-2 Function Mode
4
Func
tions
Starting Frequency
• Set the frequency for starting Inverter output when the RUN signal is turned on.
• Use mainly to adjust the starting torque.
• With starting frequency b082 set high, the starting current increases, possibly causing the current
to exceed the overload limit and overcurrent protection to work to trip the Inverter.
• If "04" (OSLV: 0-Hz sensorless vector control) or "05" (V2: sensor vector control) is selected in
control method selection A044, this function is disabled.
Carrier Frequency
• You can change the PWM waveform carrier frequency output from the Inverter.
• With the carrier frequency set high, you can reduce metallic noise from the motor. However, this
increases noise or leakage current from the Inverter.
• Helps avoid mechanical or motor resonance.
• The maximum carrier frequency varies depending on the capacity.
To raise the carrier frequency (fc), derate the output current as shown in the following table.
• Set a derating output current value as electronic thermal level.
(If the existing electronic thermal value is lower than the derating value, the above setting is not
required.)
For details on the electronic thermal function, refer to page 4-46.
• To raise the carrier frequency, reduce the output current (or derate the rated current) as shown in
the graph below.
Parameter No.
Function name
Data
Default setting
Unit
b082
Starting frequency
0.10 to 9.99
0.50
Hz
FW
b082
Output frequency
Output voltage
Parameter No.
Function name
Data
Default setting
Unit
b083
Carrier frequency
0.5 to 15.0 (0.4 to 55 kW)
5.0
kHz
0.5 to 10.0 (75 to 132 kW)
3.0
Voltage
200-V class
400-V class
Capacity
Max. fc (kHz)
Derating at fc = 15 kHz
Max. fc (kHz)
Derating at fc = 15 kHz
(75 to 132 kW is for 10 kHz)
0.4 kW
15
100%
15
100%
0.75 kW
15
100%
15
100%
1.5 kW
15
100%
15
100%
2.2 kW
15
100%
15
100%
3.7 kW
15
100%
15
100%
Summary of Contents for 3G3RX Series
Page 1: ...Cat No I560 E1 03 USER S MANUAL SYSDRIVE RXSERIES High function General purpose Inverter ...
Page 2: ......
Page 17: ...Chapter 1 Overview 1 1 Functions 1 1 1 2 Appearance and Names of Parts 1 4 ...
Page 22: ......
Page 23: ...Chapter 2 Design 2 1 Installation 2 1 2 2 Wiring 2 6 ...
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Page 108: ......
Page 324: ......
Page 337: ...Chapter 6 Inspection and Maintenance 6 1 Inspection and Maintenance 6 1 ...
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Page 437: ...Index ...
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