12.3.3 Carrier Frequency Setting
Code
Name
Setting range
Default
Min.
Attri.
C0.05 Carrier frequency
DOM
DOM
1
Run
C0.06 Carrier frequency automatic adjustment
0: Inactive
1: Active
1
–
Stop
When output frequency is less than 5 Hz, the carrier frequency is 2
kHz; When output frequency is 5...10 Hz, the carrier frequency is 4
kHz; When output frequency is more than 10 Hz, the carrier frequen-
cy is the same as customer's setting.
For 0K40...22K0 models, the carrier frequency is 4 kHz for ND mode, 6 kHz for
HD mode by default. With setting parameter C0.05, the carrier frequency can be
modified to an integer value of 1...15 kHz. For models 30K0 and above, the carri-
er frequency is 1...12 kHz with 4 kHz as default for both ND and HD modes. The
relationship between the carrier frequency, heat dissipation, noise level, and
leakage current and interference is shown as below:
Heat dissipation
Noise
Leakage current and interference
Higher carrier frequency
Higher
Lower
Higher
Lower carrier frequency
Lower
Higher
Lower
Tab. 12-2: Influence of carrier frequency
For derating figures related to carrier frequency, see
To achieve optimized performance, the carrier frequency setting
should follow the equation: [C0.05] ≥ 10 x [E0.08].
With [C0.06] = 1, the carrier frequency can also be changed automatically to
keep the power module temperature within the normal range.
EFC x610 Series
Bosch Rexroth AG
Functions and Parameters
DOK-RCON03-EFC-X610***-IT05-EN-P
125/389
