GRAIN HANDLING COMPLEX AUTOMATION

GRAIN HANDLING COMPLEX AUTOMATION
Aru Põllumajandus is a 20-year-old Estonian capital-based
company with modern production technology and machinery.
Their vehicles and agricultural machines have been purchased
for the needs of the company, but transportation and mowing
services are offered to others too.
The company has more than 3300 ha of arable land. The grain
dryer, storehouses, machinery, and office of Aru
Põllumajandus are in a small borough of Hulja in Kadrina
Parish.



Challenge:

Due to the expansion of the grain silo warehouse, the upgraded
complex with a total volume of more than 10 000 m 3 needed a fully-
automated management system. The old management system was
not integral; according to the devices that were added, it had been
divided between 11 distribution and automation control cabinets.
Managing, adjusting and monitoring the new system had to be
possible with a tablet and via SCADA. The SCADA system had to
be able to log all technical and process parameters, but also send
warning messages and alerts.


Client:      ARU PÕLLUMAJANDUSE OÜ

Cooperation:    TATOLI AS
Field:                  AGRICULTURE
Tasks completed during the project:
  • Designing the automation solution
  • PLC and HMI programming
  • Integration of IO-Link devices
  • Ignition SCADA programming
  • Designing and manufacturing automation control cabinets
  • Constructing a 5-meter-long 630A busbar set for the Siemens Busbar system
  • Object assembly (cable lines, cables, control cabinets, frequency converters with a Profinet interface)
  • Commissioning
  • Preparing the documentation and circuit diagrams
Result:

As a result, the devices of the grain complex are in one integral system that
can be adjusted, managed and monitored on site and remotely via SCADA.
Altogether there are more than 450 IO-signals, and 81 motors are being
controlled, where the more critical ones have IO-Link technology based
monitoring devices in the power circuit. Operators have a complete
overview of all silos and ongoing processes. It is possible to monitor all
system parameters and logs in the SCADA environment.

Thanks to the integral SCADA system, the number of faults due to human

error has been decreased substantially. Now, it is possible to train new
employees in a couple of weeks that was no option with the old and
scattered system.
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