Senlan Hope800 Series Manual page 119

range
Using the braking unit can consume the energy on the braking resister and make the motor stop quickly.
When the DC link voltage exceeds Fb-27, the braking uint will begin working automatically.
Fb-28
Setting 0: Auto(automatically switching between continuous and discontinuous modulation)
range 1: Continuous
 The discontinuous modulation in the auto mode has a lower switching loss but greater harmonics
compared with the continuous one.
Fb-29
Setting 75~160 kW:
range 200 kW or more
Fb-30
Setting
0~30%
range
Fb-31 Carrier frequency auto adjustment
Setting 0: Disabled
 Increasing the carrier frequency can lower the motor noise, harmonic current and the heat generated by the
motor, but raise the common-mode current, disturbance and the heat generated by the inverter, and
decreasing the carrier frequency will lead to the opposite. Therefore, when a silent run is required, you
can moderately raise the carrier frequency. If the carrier frequency is higher than the factory setting, the
inverter should be derated by 5% for every increment of 1kHz.
 Fb-30 disperses the spectrum of the carrier frequency and improves the acoustic quality. Lowering this
parameter can make the noise less harsh. Fb-30=0% means the carrier frequency is fixed.
 Fb-31 can automatically regulate the carrier frequency according to the heat sink temperature, output
current and output frequency, preventing the inverter from failing due to overheating. The carrier
frequency falls automatically if the heat sink temperature and the low-frequency current are too high.
Fb-32
Setting
0: Disabled
range
 Deadband compensation can reduce output harmonics and torque ripples; however, it must be disabled
when the inverter is used as a power supply.
Fb-33
Setting
0: Not save
range
 It is used to maintain synchronization after the synchronous motor stops and restarts, only valid for V/F
control.
Fb-34
Setting
0: Disabled
range
 Overmodulation enables the inverter to have a high output voltage which can be near or greater than the
Modulation mode
Carrier frequency
1.1k~8.0 kHz，
1.1k~5.0 kHz，
Random PWM setting
Deadband compensation
Space vector angle stop save
Overmodulation
Default
Default
Default: 2.5kHz
Default: 2.0kHz
Default
Default
1: Enabled
Default
1: Enabled
Default
1: Save
Default
1: Enabled
6 Parameter Description
0 Change
Depends
Change
on model
Change
0％
1 Change
1 Change
0 Change
1 Change
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×
×
×
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