Cebora Plasma PROF 166 HQC, Instruction Manual

Page: 53 / 260

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“Emergency A” is the emergency stop signal sent to the
Power source by the Pantograph control or system pro-
tection devices. It is triggered by a relay contact or safety
device; when the device trips, the contact is opened and
the Power source comes to an immediate halt, with the
opening of the line contact inside the Power source. The
Power source is thus without power supply to the power
circuits. The “Emergency A” signal is active low (contact
open): to have the Power source ready to start cutting,
the contact must be closed. “Emergency A” immediately
stops the power supply from the Power source. The mes-
sage “OFF rob” appears on the control panel.
EMERGENCY B.
CNC
CONNECTOR
TERMINALS
ON POWER
SOURCE
SIGNAL
NAME
SIGNAL
TYPE
POSITION
INSIDE POWER
SOURCE
23
Emergency
B
Contact NC
Line TL
control
24 Contact NC
Line TL
control
“Emergency B” is the emergency stop signal sent to the
Power source by the Pantograph control or system pro-
tection devices. It is triggered by a relay contact or safety
device; when the device trips, the contact is opened and
the Power source comes to an immediate halt, with the
opening of the line contact inside the Power source. The
Power source is thus without power supply to the power
circuits. The “Emergency B” signal is active low (contact
open): to have the Power source ready to start cutting,
the contact must be closed. “Emergency B” immediately
stops the power supply from the Power source. The mes-
sage “OFF rob” appears on the control panel.
NOTE : a multipolar connector with additional signals is
available as an optional kit (see appendix).
Fig. 16
3.3 CONNECTING THE GAS CONSOLE.
3.3.1 Manual gas console PGC-3 and PGC-2.
• Fasten the gas console above the power source or
above the pantograph and connect the earth leads to an
efficient earth system as indicated in the Fig. 26 of Ap -
pendix 5.3.
The two units PGC-3 and PGC-2 are connected together
by means of:
- the connection between CN06 and CN07
- the pipe between the “plasma cutflow” outlet of PGC-3
and the “plasma” inlet of PGC-2 (see Fig. 16)
• Connect the pipe bundle art.1166 by tightening the
pipes to the relative gas outlets, being careful to ensure
the markings correspond (plasma preflow, secondary
preflow/cutflow and auxiliary in PGC-3; plasma cutflow in
PGC-2); screw the electric connector to the outlet CN05
(see the left part of Fig. 16).
• Connect the other end of art.1166 to the PVC valve
console (art.469) for the “plasma”, to “secondary” and
“auxiliary” pipes, being careful to make sure the markings
correspond. Fasten the PVC to the pantograph head, near
the torch (see the right part of Fig. 16).
• Finally connect the connection art.1189 by screwing the
electric connector onto the CN04 outlet (see the left part
of Fig. 17).
3.3.2 Automatic gas console APGC.
• Fasten the gas console above the power source or
above the pantograph and connect the earth leads to an
efficient earth system as indicated in the diagram of Fig.
24 in Appendix 5.3.
• Connect the pipe bundle art.1166 by tightening the
pipes to the relative gas outlets, being careful to ensure
the markings correspond (plasma preflow, secondary pre -
flow/cutflow and auxiliary; screw the electric connector to
the outlet CN05 (see Fig. 17).
• Connect the other end of art.1166 to the PVC valve con-
sole (art.469) for the “plasma”, to “secondary” and “auxil-
iary” pipes, being careful to make sure the gas pipe mark-
ings correspond. Fasten the PVC to the pantograph head,
near the torch (see the right part of Fig. 16).