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  • Users: robinbreak
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  1. robinbreak

    A very simple PLC application & zero budget for hardware ??

    This is a story of rubbing two nickels to make a dime. I've been assigned to make a simple PLC application: INPUTS: two temperature sensors (thermocouples) OUTPUT: 4-20mA to drive a VFD (that operates a cooling fan) Existing equipment: Cooling fan + ABB VFD (already tested), and a PanelView...
  2. robinbreak

    690VAC distribution in USA

    Hi, I am part of a Canadian company that is possibly going to be awarded a job in New Mexico, USA. For this particular plant, as we're in the feasibility study phase, we are considering installing both a 690VAC MCC system and a 480VAC MCC system to build a steel shop plant. I don't like two...

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