Functions and Technical Specifications
4-16
EM 148-FC
Frequency Converter
A5E00065321-03
Smoothing
This parameter controls the frequency curve when the motor ramps up and down.
This ensures a smooth run, which is important for textile processing or conveyor
systems, for example. The ramp-up and ramp-down times increase by the
smoothing time specified here.
Smoothing
0
f
max
f
Switch on
t
Switch off
Figure 4-6
Frequency curve with and without rounding
Counterclockwise rotation
This parameter allows you to prevent the motor running counterclockwise.
Enable:
The motor can run in both directions.
Disable:
The motor cannot run counterclockwise. All the switch-on commands start
clockwise rotation.
Содержание SIMATIC EM 148-FC
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Страница 66: ...Mode of Functioning 5 10 EM 148 FC Frequency Converter A5E00065321 03 ...
Страница 70: ...Dimensioned Drawing B 2 EM 148 FC Frequency Converter A5E00065321 03 ...
Страница 76: ...4 Product Information on Manual EM 148 FC Frequency Converter Edition 04 2003 A5E00476687 03 ...