Chapter 7 Detailed Function Introduction Shenzhen Hpmont Technology Co., Ltd.
- 70 - HD09-S Series User Manual V1.1
7.19 F23: PWM Controlling Parameter
Ref. Code Function Description Setting Range [Default]
F23.00 Carrier frequency setting 1 - 8 [8kHz]
Define carrier frequency of converter output PWM wave.
• Carrier frequency will affect motor running noise. Higher the carrier frequency, less noise. Please set it
reasonably.
F23.01 Carrier frequency is automatically adjusted 0,1 [1]
0: Automatic adjustment of carrier frequency is forbidden.
1: Enable automatic adjustment of carrier frequency.
• When automatic adjustment of carrier frequency is enabled, the inverter automatically adjusts the carrier
frequency based on the output frequency and the radiator temperature.
• Only for carrier frequency F23.00 setpoint > 3kHz.
• The carrier frequency auto-tuning is invalid during torque control.
F23.02 PWM over modulation enabled 0,1 [1]
0: Invalid.
1: Valid.
F23.03 PWM modulation mode 0,1 [0]
0: Two-phase modulation / three-phase modulation switching.
1: Three-phase modulation.
F23.04 PWM modulation mode switching point 1 Type confirmed - F23.05 - 2Hz
[Type confirmed]
F23.05 PWM modulation mode switching point 2 F23.04 + 2Hz - 50.00Hz
PWM modulation mode switching is only applicable to the V/f control, carrier frequency > 3kHz conditions;
The inverter automatically selects three-phase modulation when the open-loop vector or carrier frequency ≤
3kHz.
• F23.04 sets the switching frequency of two-phase modulation → three-phase modulation;
• 2.2kW and below models (including 380V and 220V) factory default value 10.00Hz, the lower limit of
10.00Hz.
• Other models default value 5.00Hz, lower limit 5.00Hz.
• F23.05 sets the switching frequency of three-phase modulation → two-phase modulation;
• 2.2kW and below models (including 380V and 220V) factory value of 15.00Hz.
• Other models default setting 10.00Hz.
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