Preparation And Execution Of Mark; Performing The Gas Test - Cebora PLASMA PROF 166 Betriebsanleitung

SELECTION
(pressing button V)
t
t
t
NOTE: when the system is switched on, the last work set-
ting remains stored (i.e. MAT-GAS-mm-A). If, in the next
adjustment, the type of gas is changed, then "purge" is
automatically performed, i.e., first of all pipe emptying,
followed by subsequent cleaning with flow active for
about 10 s.
After the start signal from the pantograph, the following
sequence is automatically started:
- Preflow lasting 0.5 s with selected gas.
- High voltage / High frequency Pulse.
- Pilot arc switch-on.
- Transfer of plasma arc (sending of "arc transfer" signal to
CNC).
- Start of CNC movement on x-y plane at end of "pierce
delay time".
When the stop signal is received from the pantograph, the
following sequence automatically starts:
- Switch-off of plasma arc.
- End of CNC movement on x-y plane.
- Postflow with selected gas.

4.2.2 Preparation and execution of MARK

After starting the system by means of the switch on the
front power source panel, the lighting up of the MARK
LED indicates that the machine is in "mark" mode. First
of all, a series of selections/adjustments must be made
and a check must be carried out to ensure the RUN key is
not pressed (PREFLOW and CUTFLOW display screen in
Fig.21 of PLASMA and SECONDARY gas flow off).
The first thing to do, in sequence, is the selection indicat-
ed on table 3.
For the second setting, refer to that of Tab. 2 with relative
notes.
DESCRIPTION
Switch on of display R
PLASMA CUTFLOW
Switch on of displayy S
PLASMA PREFLOW
Switch on of display T
SECONDARY PREFLOW
Switch on of display U
SECONDARY CUTFLOW
Tab. 2
SELECTION
(pressing
button E)
t
(PLASMA/SECON-
t
chosen (MAT/GAS/

4.2.3 Performing the gas TEST

After starting the system by means of the switch on the
front power source panel, the lighting up of the TEST LED
indicates that the machine is in "test" mode. The seal
test must be periodically performed, from T01 to T05, to
check for any gas leaks in the pipes, from where they en-
ter the rear of the gas console as far as entry into the valve
console. The TF6 flow test also permits checking the flow
in the auxiliary AUX channel.
Each channel can be checked individually, as shown on
Tab. 4:
REGULATION
(turning knob Y)
Until simultaneous switch-on
of the two arrow LEDs X
Until simultaneous switch-on
of the two arrow LEDs X
Until simultaneous switch-on
of the two arrow LEDs X
Until simultaneous switch-on
of the two arrow LEDs X
DESCRIPTION
MS = Mild Steel
type of material
SS = Stainless
to be marked
AL = Aluminium
Combination of
DARY) gas suita-
ble for the chosen
material
Cutting current
suggested for the
See cut tables
mm) combinationa
Tab. 3
SELECTION
(turning
knob O)
Steel
Ar/Ar
59