9
Operation
9.1
General notes on operation
The Multi Physics Box can be used in two ways:
On the one hand, for monitoring a machine or plant. The current condition is com‐
pared with the recorded condition via the indication values in order to detect possible
changes (e.g. due to aging, wear, damage, etc.). For this application, limit values can be
defined based on the current measured values.
The machine condition can also be interpreted. Here, the goal is not only to detect a
change in condition, but to assign a detected state to specific operational statuses and
various fault conditions. This second approach is costly, since initially the recorded data
must be correlated with known fault conditions, but it also allows for a significantly
more precise interpretation of the machine condition based on the vibration data. The
two methods are compared in
Table 9: Comparison of condition monitoring and condition interpretations
Attribute
Condition monitoring
Condition interpretation
Thresholds
Based on current values
Based on known fault conditions
Sensor support
functions
Min, pre-max and max limits
Teach-in of the vibration values
(
Value monitoring based on ISO
10816-3
Necessary infra‐
structure
Evaluation unit for processing the
triggered alarms
Connection, database and visualiza‐
tion
Initial effort
Low
Setting the limits
High
Occurrence of errors and correlation
of data and errors
Effort during
operation
High
Each alarm triggered must be
checked and, if necessary, the limit
values adjusted depending on the
result.
Low
Errors that have already occurred
can be detected at the initial stage
NOTE
The supporting analysis methods are only an aid, but are not applicable in all cases.
It should always be checked whether the monitoring and the resulting alarms correlate
with the actual machine condition.
IO-Link
In addition to configuration via the associated SDD and an SI-Link box, the sensor can
also be configured via IO-Link commands. A detailed listing of the IO-Link functions, the
IODD file and the SDD file can be found under
9.2
Alarm behavior (Index 4842)
Limit values can be defined for all measured values. If these limit values are exceeded
or undercut, an alarm is issued. Occurring alarms can be read out via corresponding
indices. These are shown in
Table 10: Alarm indices
Index (hex)
Monitored measurand
4353 (0x1101)
Temperature
4370 (0x1112)
Device diagnostics
9
OPERATION
28
O P E R A T I N G I N S T R U C T I O N S | MPB10
8028041/2022-08-16 | SICK
Subject to change without notice
