Siemens SIMOCODE pro C System Manual page 51

Monitoring operating hours, stop time, and number of starts
SIMOCODE pro can monitor the operating hours and stop times of a motor to avoid plant
downtimes due to failed motors caused by either running too long (wearing out) or being
stopped for too long. For example, if an adjustable limit value is exceeded, a signal indicating
that the relevant motor requires maintenance or replacement can be generated. After the
motor has been replaced, the operating hours and stop times can be reset.
To avoid excessive thermal loads and premature aging of a motor, the number of motor
starts in a selected time frame can be limited. The limited number of possible starts can be
indicated by pre-warnings.
Monitoring additional process variables via the analog module
High Performance SIMOCODE pro V allows measuring and monitoring of any other process
variables via the analog module.
For example, the fill level can be monitored to protect a pump against dry operation, or a
differential pressure transducer can be used to monitor the degree of pollution in a filter. If
the fill level undershoots a specified level, the pump can be switched off and, if a specific
differential pressure value is exceeded, the filter should be cleaned.
The devices support two-phase monitoring of the applicable process variable for freely
selectable upper and lower current limits. The response of SIMOCODE pro on reaching a
prewarning level or trip level can be freely parameterized and delayed.
Phase sequence identification
SIMOCODE pro allows the direction of rotation of a motor to be determined by identification
of the phase sequence. If the direction of rotation is wrong, a signal can be generated or the
motor switched off. See Chapter Menu of the operator panel with display (Page 94).
Monitoring any measured values using unrestricted limit monitors
SIMOCODE pro can monitor every measured value in the system for undershooting or
overshooting a set threshold value by means of unrestricted limit monitors, e.g. the
frequency
Parameterizing SIMOCODE pro
(https://support.industry.siemens.com/cs/ww/en/view/109743958).
1) For use with current / voltage measuring module
2) Temperature module or multifunction module additionally required
3) Analog module additionally required
4) SIMOCODE pro V and pro S device types: Ground-fault module or multifunction module
and residual current transformer additionally required
See also
Dry-running protection for centrifugal pumps by active power monitoring (Page 314)
SIMOCODE pro
System Manual, 05/2019, A5E40507475002A/RS-AD/004
1)
. Further information can be found in Chapter "Limit monitors" in the manual
1)
Overview of functions
5.2 Monitoring functions
3)
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