Diagraph PA/4000, Руководство по обслуживанию, Страница: 148 / 213

Technician’s Guide 2-4
PA/4000 AIR FILTER ASSEMBLY
The air filter assembly connects directly to factory air and filters out impurities and moisture.
The assembly mounts to the lower rear part of the stand .
PA/4000 HAND-HELD TERMINAL
The Hand-Held Terminal is used to access the Menu Select Items that control various attributes
of the PA/4000. The Hand-Held Terminal connects to the electrical box of the main unit and
can be stored on a holster which attaches to the yoke.
PA/4000 WARNING TOWER (OPTIONAL)
The warning tower option is made up of a series of lights and operates as the warning
mechanism that indicates to personnel that there is a certain condition that needs attention.
The warning tower mounts with a bracket and two bolts to the upper rear portion of the stand.
2.1.3 ELECTRONIC SYSTEM THEORY OF OPERATION
PRINTER AND APPLICATOR ELECTRONICS
The PA/4000 electronics can be broken down into two sections, the Printer section and the
Applicator section. The printer section mainly consists of the Prodigy Plus Board and itís
interface assemblies. The Applicator section consists of the Applicator Board, the Connector
Board, the Regulator Assembly and the Hand-Held Terminal.
The following sections explain the function and operation of these boards. They will provide
quick assistance to anyone troubleshooting a unit down to the assembly level. (See Engineering
Drawings in Section 3 for more information.)
APPLICATOR LOGIC BOARD (6105-119)
The Applicator Logic Board is a microprocessor based board that controls the Applicator
function of the PA/4000. It monitors the tamp pad sensors as well as controlling the valves that
actuate the cylinder that applies the label to the product. The Applicator Board also
communicates to the Hand-Held Terminal and interfaces with the Prodigy Plus Board. It
controls the Warning Tower and the Secondary Wipe Down assembly. Finally it monitors the
ribbon out and ribbon low assemblies as well as the label low and paper edge sensor
assemblies.
The Applicator Board receives power from the Regulator Assembly (6105-384) through the J3
connector. Pin 1, on the J3 connector is Digital Ground (DGND) while pin 2 is 5.0 Vdc. Pin 3 is
24.0 Vdc and pin 4 is Analog Ground (AGND).
NOTE: Some units may not have the Regulator Board.