Gardner Denver APEX15-18A, Руководство по эксплуатации и обслуживанию

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13-25-607 Page 24
Power Supply –
This single-phase device supplies all 24 VDC needs within the control enclosure from
the available AC supply line.
Terminal Strip -
This device provides an interconnection between the ASG2 controller and the low
voltage hardware such as sensors and switches within the enclosure.
Variable Frequency Drive -
The main motor coupled to the compressor is energized by a pulse-width
modulated, variable frequency drive (aka a VFD). The VFD / main motor combination enables the
compressor to match the air supply to the customer's demand in real time and in a step-less fashion. The
operational logic which govern the VFD and motor is provided by the ASG2 controller. Both controller
and drive share a common Type 1 (IP54) enclosure along with the support electrical hardware.
Ventilation for the electronics within the common enclosure is fed by a portion of the air stream supplied
by the heat exchanger cooling fan. Reusable air filters protect the air stream from contaminants. A
temperature sensor monitors the average temperature within the common enclosure and warns against
high levels - an indication that the local ambient temperature has been exceed or that the air filters needs
cleansing.
Cooling Fan Motor Starter -
This full voltage type starter provides control and overload protection for the
cooling fan motor. Wiring diagrams for typical full voltage applications are illustrated on pages 26 thru 31.
The overloads are adjustable and are factory set based on the motor nameplate amps and the
instructions located inside the control box door.
NOTICE
Read the Operator’s Manual before operating the compressor. It is critical that
the detailed instructions for the controller, found in the controller manual
are read and understood. Once the appropriate parameters have been selected
into the controller, compressor operation may commence. For convenience, a
“Quick Start” excerpt from the controller manual is shown on Section 3