Monitoring functions
SIMOCODE pro
5-18 GWA 4NEB 631 6050-22 DS 03
5.7 Operation monitoring
5.7.1 Description
To avoid plant downtimes due to failed motors caused by excessive run or
stop times, SIMOCODE pro can monitor the operating hours and stop times
of a motor and limit the number of motor starts in a defined time frame.
If an adjustable limit value is exceeded, a signal or warning can be
generated that indicates maintenance or replacement of the motor in
question is required.
After replacing the motor, the operating hours and motor stop times can be
reset.
To avoid excessive thermal strain and premature aging of a motor, the
number of motor starts in a selectable time frame can be limited. The
number of starts still possible is available for further processing in
SIMOCODE pro.
A low number of possible starts can be indicated by pre-warnings.
Note
Operating hours, motor stop times and the number of motor starts can be
monitored completely in the device and/or transmitted to the automation
system via PROFIBUS.
Fig. 5-8: "Operation Monitoring" function block
Operating hours level
Response
Event
Control
functions
Operating hours
Motor stop time level
Response
Event - Motor stop time >
Motor stop time
Number of starts
Permissible starts
Time range for starts
Response at overshoot
Response at pre-warning
Interlocking time
Event
- Operating hours >
- Number of starts >
- Just one start possible
See
Table 5-15
See
Table 5-15
See
Table 5-15
See
Table 5-15
- No start possible
Tripping
QE1
QE2
QE3
QE4
QE5
Operation monitoring
Permissible starts
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