4 Technical data
General data and operating conditions
Setting the sw itching frequency to the rated m otor data
4.1.1 Setting the sw itching frequency to the rated m otor data
The rated data are valid for operation on an inverter w ith a switching frequency of at
least 8 kHz. If operated at a sw itching frequency of fch=4 kHz, the follow in g
consequences must be observed.
Motor type Consequences
MDFQA 160
• At fch = 4 kHz, the motor continuously reaches only approx. 95 %
of its rated torque.
• Strongly increased noise emission
MQA 20, 22, 26
MCA 20, 22, 26
• At fch = 4 kHz, the motor continuously reaches only approx. 95 %
of its rated torque.
• Increased noise emission
MCS
MCA 10, 13, 14, 17, 19, 21
MD^KS
• All published rated data remain valid if fch = 4 kHz.
EN
20
Lenze • BA 33.0006 • 3.0
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