Siemens Midimaster Eco Reference Manual page 110

Parameter
Pulse frequency
•
Due to higher switching losses at increased frequencies, certain inverters may have their maximum
continuous current (100%) derated if the switching frequency is changed from the default value.
13-20
Function Range
[default]
0 - 7
[rating
dependent]
[0]
ECO REFERENCE MANUAL
Description / Notes
Sets the pulse frequency (from 2 to 16 kHz)
and the PWM mode. If silent operation is not
absolutely necessary, the losses in the inverter
as well as the RFI emissions can be reduced
by selecting lower pulse frequencies.
0/1 = 16 kHz (230 V default)
2/3 = 8 kHz
4/5 = 4 kHz (400 V default)
6/7 = 2 kHz
Even numbers = normal modulation technique.
Odd numbers = lower loss modulation
technique used when operating mainly at
speeds above 5 Hz. (Not generally for fan
and pump applications)
Model % of full load de-rating
MICROMASTER Eco
ECO1-75/3
ECO1-110/3
ECO1-150/3
ECO1-220/3
ECO1-300/3
ECO1-400/3
ECO1-550/3
ECO1-750/3
Model % of full load de-rating
16 kHz
MIDIMASTER Eco
ECO1-550/2 60
ECO1-750/2 55
ECO1-1100/2 64
ECO1-1500/2 60
ECO1-1850/2 47
ECO1-2200/2 43
ECO1-1100/3 57
ECO1-1500/3 50
ECO1-1850/3 64
ECO1-2200/3 55
ECO1-3000/3 50
ECO1-3700/3 47
ECO1-4500/3 40
ECO1-750/4 75
ECO1-1100/4 55
ECO1-1500/4 39
ECO1-1850/4 64
ECO1-2200/4 55
16 kHz 8 kHz
100 100
100 100
100 100
100 100
100 100
100 100
100 100
100 100
8 kHz 4 kHz
90 100
90 100
90 100
100 100
80 100
79 100
90 100
83 100
90 100
75 100
90 100
88 100
75 100
100 100
100 100
75 100
90 100
75 100