8.1.3 Frequency Converter Configuration
b0.20 Frequency converter rated voltage setting
Setting range 200 V class: 200 ~ 240 V; 400 V class: 380 ~ 480 V
Minimum unit 1 V
Factory default 200 V class: 220 V; 400 V class: 380 V
Used for analog output function selection "terminal output voltage". Analog out-
put voltage of 10 V corresponds to 1.2 times of [b0.20], for example:
[b0.20]=220 V, the terminal output voltage 0 ~ 264 V corresponds to 0 / 2 ~ 10
V, see descriptions in parameters E1.30 ~ E1.32.
b0.21 Carrier frequency
Setting range 1 ~ 15 kHz
Minimum unit 1 kHz
Factory default 4 kHz
● A higher PWM frequency may reduce the motor noise, but increase the
ground current leakage and interferences caused by the frequency converter.
Meanwhile, the power loss and temperature will be increased.
● A lower PWM frequency will reduce the power loss and temperature of fre-
quency converter.
For the temperature, voltage and current derating figures related to PWM fre-
quency, please refer to chapter 10.3 "Derating of Electrical Data" on page 139.
To obtain the best performance of the output frequency, the carrier
frequency needs to be set as below:
Set [b0.21] ≥10 × ('Max. frequency' [b1.05]).
b0.22 Automatic adjustment of carrier frequency
Setting range 0: OFF; 1: ON
Minimum unit 1
Factory default 0
b0.23 ~ b0.29: Reserved
The frequency converter is able to adjust the PWM frequency automatically
based on its own temperature when this function is activated.
EFC 3600
Bosch Rexroth AG
Parameter Settings
DOK-RCON03-EFC-3600***-IT03-EN-P
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