Mode of Functioning
5-4
EM 148-FC
Frequency Converter
A5E00065321-03
5.3
Applications
The sequences required in different applications are explained in the status
diagrams below.
In these diagrams the effect of the external brake is represented by the statuses
“0” and “1”.
Table 5-1
Effect of the external brake
Indication in diagram
State of the braking relay
Effect of the external
brake
“0”
Picked up
Brake ineffective
“1”
Released
Brake takes effect
Stopping the motor by normal ramping down, renewed ramping up
Brake
0
f
setpoint
f
max
f
Control bits
Bit 0
1
0
1
0
t
t
AUS1
Figure 5-3
Stopping the motor by normal ramping down, renewed ramping up
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 ...