Page 5 - Industrial Technology EXTRA - 15th June 2020
P. 5
to cloud environments.The idea: and temperature sensor directly to
Companies can easily add at a later the motor block. The compact
time devices by which they monitor sensor with IP67 protection is fitted
machine values within an easily and securely with magnets. It
independent system. Status data is based on a microelectro-
can then always be transferred to mechanical system (MEMS) and
the customer's automation world if thus supplies high precision velocity
required, with the existing and acceleration data in two
architecture always however dimensions. The QM42 also outputs
remaining separate to the operation a temperature value, and registers
of the condition monitoring therefore in the temperature range
expansion. from -40 to 105°C, whether and
The monitoring of motors is a where the motor has overheated,
widely used application of this and thus allows the monitoring of
approach. These drive pumps, temperature trends.
compressors or exhaust fans, and The current required by the
are often run in noisy uninterrupted motor is also helpful here. If there is
duty in locations that have so far any damage to bearings, or if the
been difficult to reach for lubrication is not correct, the
maintenance. A regular inspection mechanical resistance will make
by employees cannot exclude the more current necessary to reach the
possibility of an impending machine required speed. A measurement
failure with a high degree of transformer can be used for
certainty; onsite inspections are also monitoring.
mostly difficult. Monitoring through
the use of measurement devices is Wirless data transfer
not only more reliable but also more These measured values can be used
economical. They can measure three in different ways and can be
different values: vibration, transferred in both wired and
temperature and current. wireless networks. In some machine
halls, a decentralized alarm system,
Vibration and temperature for example, consisting of the
Irregularities in a motor sometimes QM42VT2 sensor and Turck’s
announce them- selves several compact TBEN-S2-2COM I/O
months before the actual failure. An module are perhaps all that is
incorrectly adjusted shaft, a sticking needed to meet the requirements.
bearing or imbalance in an Thanks to the integrated intelligence
attachment will change the through the ARGEE programming
frequency in the vibration. environment, the fieldbus module
To detect these, maintenance takes over PLC functions if required
engineers can fit the QM42 vibration and transfers the information of an
June 2020 • INDUSTRIAL TECHNOLOGY EXTRA! • p5