Function; Sensor Self-Awareness - Balluff BCM R15E-00 DI00 S4 Serie Betriebsanleitung

BCM R15E-00 _ -DI00-_ _ , _-S4
Condition Monitoring Sensor
3
Construction and function (continued)
3.4

Function

The BCM is an intelligent condition monitoring sensor. It is
used for acquiring status information for a system or
machine and for monitoring trends. It cannot replace a
precision measurement system for determining condition.
The functional principle of the individual modules is
described in Sections Contact temperature, relative
humidity, ambient pressure and Vibration from page 10.
Additionally, the BCM also has integrated self-awareness
functions (see Section Sensor self-awareness).
The BCM measures multiple physical measurement
variables. The following table provides a variant overview:
Variants
BCM R15E-001-DI00-_ _ , _-S4 Vibration, contact
BCM R15E-002-DI00-_ _ , _-S4 Vibration, contact
Tab. 3-2: Variant overview
The individual modules support threshold monitoring.
For this purpose, setting a waiting time (DELAY START
MONITORING) is helpful. It begins with the startup of the
sensor, i. e. as soon as the sensor is supplied with power.
An evaluation of the thresholds is not carried out within the
waiting time. This function is used to bridge the startup
time of the machine since the thresholds configured for
machine operation can be exceeded frequently.
3.4.1

Sensor self-awareness

The sensor offers various self-awareness functions which
are shown in the following modules:
– Device temperature (only for
the BCM R15E-002-DI00-_ _ , _-S4)
– Operating hours counter
– Boot cycle counter
The sensor determines status values which can be stored
internally and retrieved on demand. The statistical values
can refer to the entire lifetime of the sensor or to the time
period since the last startup. It is also possible to reset the
statistical values manually.
The statistical values of the self-awareness
functions can be individually reset. This may be
done after carrying out maintenance work, for
example.
www.balluff.com
Included modules
temperature
temperature, relative
humidity, ambient
pressure
Device temperature
The function for device temperature is only
available for the
BCM R15E-002-DI00-_ _ , _-S4.
The sensor measures the current device temperature
within the sensor and can output this as the device
temperature value. Furthermore, the sensor determines the
following statistical values which can be stored internally
and retrieved on demand:
– Minimum and maximum device temperature since the
last startup
– Minimum and maximum device temperature since
production
– Minimum and maximum device temperature since the
last maual reset
Additionally, the sensor can detect when the thresholds
are exceeded or underrun (see Fig. 3-3).
T
Upper
threshold
Lower
threshold
I II
I Lower threshold underrun
II Lower threshold no longer underrun
III Upper threshold exceeded
IV Upper threshold no longer exceeded
Fig. 3-3: Device temperature – thresholds
Operating hours counter
The operating hours are recorded internally and
incremented in seconds. In this process, various statistical
values can be read out:
– Operating hours since last startup
– Operating hours since production
– Operating hours since the last manual reset
Boot cycle counter
Every time initialization of the sensor has been performed,
the number of boot cycles is determined in two different
counters:
– Boot cycles since production
– Boot cycles since the last manual reset
Current
device
temperature
t
III IV
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