Customer's Specification: The control panel shall be fiberglass and rated NEMA 4X and UL 508. It shall allow a DC motor to be started and stopped, and allow its speed or stroke to be varied locally or remotely through a Hand-Off-Auto Selector, an Operator Interface, a PLC, and various field sensors. It shall indicate various conditions through flash sequences on an Alarm indicator and Operator Interface. Auxiliary contacts shall be provided for Hand-Off-Auto in Auto, Fault. Analog output shall be provided to indicate Speed, Stroke, or Calculated Flow. |