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Inside the lower portion of the Power Supply is a plastic enclosure with a clear cover. Inside the enclosure is the Power
Supply Control PCBA. It has a number of switches and displays that represent the operation of the Power Supply. The
operation of these Power Supply sub-systems will be described.
It should be noted that the switches should be in
certain positions for normal operation and that any deviation from their normal positions during normal
operation may damage the unit. Read the following sections carefully and check switch positions before normal
operation commences.
(For more information on internal power supply information request document called “Large COMM Power Supply Control
Overview”.)
Control Box
This enclosure determines the operation of the ECO-matic Commercial System. The enclosure is
protected to IP68 to stop the pe netration of dust and/or corrosive/moist atmospheres. The
transparent door should be closed at all times other than when using the control panel.
The Control Box has a number of features:
Cell Production & Polarity Indicator
Shows the magnitude and polarity of the electrical current applied to the cell. The Cell
Production is shown as a percentage of maximum system output. It will read around 100
unless the unit is in Winter Mode, where it can read down to 65. If the Cell Power is off, it
will be blank. Polarity is shown as “+” (positive, forward) or “-” (negative, reverse)
