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2 Condition Monitoring
2.1 Tasks and Options
The growing cost pressure within the global competition increasingly forces
companies to maximize existing saving potentials and to implement measures
for more efficiency. In the maintenance sector this means the assurance of a
fault free production process, the avoidance of unscheduled machine down-
time and the optimum exploitation of the installation lifespan.
For the realization of these goals, online condition monitoring systems are of
paramount importance. Faults can be diagnosed early, maintenance measures
scheduled for the optimum timelines and unexpected operational shuts-downs
can be avoided.
The continuous registration of the machine health condition via the fieldbus
permits an early analysis and reaction prior to the actual occurrence of
damages.
For this purpose, WAGO offers the WAGO-I/O-SYSTEM function modules
for recording and processing of the relevant parameters, such as current,
temperature, standard signals and machine vibrations.
Typical applications will be all standard machines, such as electric motors,
ventilators, pumps, air conditioners, etc.
2.2 Machine Condition Monitoring with VIB-I/O Modules
2.2.1 Fundamentals
2.2.1.1 Vibration Severity
The vibration severity is defined as the largest effective value of the vibration
speed occurring at functionally important locations, in a frequency range of 2
or 10 to 1000 Hz. The vibration severity is an energetic mean value of all
vibration components within a wide and comparatively low frequency range.
The vibration severity is relative to the energy level of the machine vibration
and thus a suitable indicator for the vibration forces acting on a machine.
2.2.1.2 ISO 10816-3
The following illustration shows the criteria for an analysis of the vibration
severity values. The classification depends on the capacity and installation of
the machine.
The frequency range to be recorded is to be selected according to the machine
RPM (10 Hz to 1000 Hz for > 600 RPM, 2 Hz to 1000 Hz for > 120 RPM).
Group 1: large machines; 300 kW to 50 MW capacity
WAGO-I/O-SYSTEM 750
I/O-Modules
Condition Monitoring
Tasks and Options
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