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

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