Functions and Technical Specifications
4-14
EM 148-FC
Frequency Converter
A5E00065321-03
External brake stopping time
After the motor has ramped down, the braking relay is switched off for the time set
here, and the frequency converter is then operated with the minimum motor
frequency.
External brake stopping time
Brake
0
f
min
f
setpoint
f
max
f
1
0
Switch off
t
Figure 4-3
Frequency curve with external brake stopping time
Note
The value for the External brake stopping time parameter should be slightly
greater than the time actually required to apply the external brake.
Summary of Contents for SIMATIC EM 148-FC
Page 56: ...Functions and Technical Specifications 4 22 EM 148 FC Frequency Converter A5E00065321 03 ...
Page 66: ...Mode of Functioning 5 10 EM 148 FC Frequency Converter A5E00065321 03 ...
Page 70: ...Dimensioned Drawing B 2 EM 148 FC Frequency Converter A5E00065321 03 ...
Page 76: ...4 Product Information on Manual EM 148 FC Frequency Converter Edition 04 2003 A5E00476687 03 ...