04/10 MN04020001Z-EN
Parameter menu (PAR)
115
PNU ID Access right
RUN
Value Description Factory setting
(P1.3)
P11.9 601 - Pulse frequency 6.0
1.5 - 16.0 kHz
Using a high switching frequency can reduce the magnetization
noise in the motor.
The heat dissipation in the inverter (IGBT) increases with higher
switching frequencies.
With motor frequencies < 5 Hz a higher speed stability can be
achieved at low switching frequencies.
Note: As a protection against thermal overload, MMX reduces the
switching frequency automatically if, for example, too high values
are set and with high ambient temperatures and high load
currents.
Parameter P11.10 = 1 must be set for operation at a constant
pulse frequency.
P11.10 522 - Pulse frequency, stabilizer (sinusoidal filter) 0
0 Deactivated
1 Activated
Note: When using a sinusoidal filter, the pulse frequency must be
constant.
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