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Charlotte Stonestreet
Managing Editor |
Editor's Pick
Ruggedised PLCs control sedimentation process
19 February 2014
ABB is currently upgrading the automation system at Agnico Eagle's gold mine in Lapland, with eight of its latest ruggedised PLCs for controlling equipment in harsh conditions and extreme climates. The PLCs will control the sedimentation process of the concentrating mill at Europe's largest gold mine, Agnico Eagle, in northern Finland.
The harsh environment at Kittila poses no problem for the XC PLC which can operate in temperatures from -30˚C, with reliable system start-ups in temperatures as low as -40˚C, more than meeting the problems that might arise. Its circuit boards have a conformal coating to protect against moisture ingress.
The PLC is protected against vibration and shock and will tolerate a lot of mechanical stress – such as accelerations up to four g from random vibrations up to 500 Hz, or two g from sinusoidal vibration.
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