4
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An analogue current signal or a pulse signal can be connected to the analogue
inputs� They can be used as speed input for vibration diagnostics, as trigger of
a measurement or for process value monitoring�
•
An analogue current signal can also be connected to the dynamic inputs to
monitor max� 4 more process values�
Moreover up to 4 vibration sensors from ifm (types VSA, VSP) or sensors with
an IEPE standard signal can be connected�
•
The possibilities of signal monitoring and signal analysis depend on the
respective firmware version� The current firmware and operating software can
be downloaded from the download area on ifm's website�
•
The alarm states of the monitoring tasks (process values and/or objects) are
indicated in the diagnostic electronics and/or the 2 hardware outputs via the
LED of the respective sensor� The hardware outputs can be configured as 2 x
binary (NO/NC, PNP) or as 1 x analogue (0/4…20 mA) and 1x binary (NO/NC,
PNP)�
•
The 8 digital I/Os of the diagnostic electronics can be used either as additional
alarm outputs (NO/NC, PNP) or as digital inputs (versions, reset counter)�
Examples of the firmware functions are:
•
Online monitoring
-of process values (analogue signals) for current value above and/or below the
limit value�
-of up to 24 indicators (objects) of the dynamic signals (e�g� vibration) in the
time range or frequency range (FFT and/or H-FFT)�
Monitoring of the objects is possible with regard to up to 2 process categories
(e�g� load and rotational speed)�
•
Internal trend memory with RTC time stamp with flexible storage intervals for
each object�
•
Counter function
For monitoring and evaluation of the dynamic signals (e�g� vibration) the firmware
provides the following tools or settings:
-Spectral analysis FFT, envelope-curve FFT, trend analysis
-Velocity monitoring to ISO 10816 with variable filter setting
All parameters are set and/or the monitoring tasks configured (process values
and/or objects) via the PC software, article number VES004�
