Description Of Pvc Valve Console Art. 478; Diagram Of Pvc Valve Console Art. 478 Pneumatic System - Cebora PLASMA PROF 164 HQC Service Manual

CEBORA S.p.A.
The PGC2 is essentially the replica of one of the 4 pneumatic circuits of the PGC1, with the
difference that the devices used in this case are suitable for use in "high risk" environments since
they work in contact with easily flammable gases.
Two boards are included to manage the PGC1-2 Gas Console:
the solenoid valve board (2) receives power from the Power Source and gathers together the
−
control circuits of the cutting system solenoid valves. It is controlled by the panel board (20).
− the panel board (20) is the main operator panel. It includes the displays and leds for the
signals, commands to set the operating parameters, and is equipped with microprocessor
(SLAVE) with which it communicates via CAN bus serial line with the Power Source control
board (38).

2.7 - Description of PVC Valve Console art. 478.

2.7.1 - Diagram of PVC Valve Console art. 478 pneumatic system.

The PVC Valve Console is a control station to select the types of gas to use in the pilot arc
and cutting phases. Inside are 2 pneumatic circuits with 4 solenoid valves connected as shown in
the diagram in fig. 2.7.1.:
- a circuit, called "plasma," conveys the plasma gas towards the torch to guide the arc through
the nozzle.
- a circuit, called "secondary", conveys the gas used to protect the torch from splatters and to
protect the torch nozzle towards the torch.
Each circuit is switched on 2 different gas supply lines from the Gas Console PGC1-2,
depending on the machining stage in progress (pilot arc or cutting). This ensures that each stage
has the optimum adjustment and most appropriate type of gas for each circuit.
It is controlled by the boards in the Gas Console PGC1, to which it is connected via the
extension art. 1183.
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9/8/2006