Operation Monitoring; Description - Siemens SIMOCODE pro System Manual

Monitoring functions
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.
Control
functions
Fig. 5-8: "Operation Monitoring" function block
5-18
Operation monitoring
Operating hours
Operating hours level
See
Table 5-15
Response
Motor stop time
Motor stop time level
See
Table 5-15
Response
Number of starts
Permissible starts
Time range for starts
See
Response at overshoot
Table 5-15
See
Response at pre-warning
Table 5-15
Interlocking time
QE1
Tripping
QE2
QE3
QE4
QE5
Event
- Operating hours >
Event - Motor stop time >
Permissible starts
Event
- Number of starts >
- Just one start possible
- No start possible
SIMOCODE pro
GWA 4NEB 631 6050-22 DS 03