Lenze L-force 9400 Serie Instructions De Montage página 19

Application range
A sinusoidal filter (LC filter) in the motor cable limits the rate of rise of voltage and the
capacitive charge/discharge currents which occur during inverter operation. This enables
considerably larger shielded motor cables and the service life of the motor is increased.
The following must be observed when using sinusoidal filters:
ƒ Use sinusoidal filters only together with standard asynchronous machines 0 ... 550 V.
ƒ The operation is only permissible using a V/f or V/f
ƒ The operation is only permissible using a switching frequency of 4 ... 8 kHz.
– The sinusoidal filter overheats when being operated with a switching frequency
< 4 kHz.
– Ensure that the automatic switching frequency reduction is deactivated (see
documentation of the basic device).
ƒ Limit the output frequency to maximally 150 Hz.
ƒ Please note, when dimensioning the controller, that the controller has an additional
load of 10 ... 15 %.
EDKZS3X200 DE/EN/FR/ES/IT 1.1
2
characteristic control.
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