Management Of Torch Cooling Time At End Of Cutting; Display Of Coolant (H2O) Flow Rate And Temperature; Making The Cut On Perforated Or Gridded Plates (Sr) - Cebora PLASMA PROF 166 Betriebsanleitung

With the switch #2 in OFF position (predefined configura-
tion), the value of the corner current is regulated directly
from the pantograph through the relative analogue input
(0-10V) (see optional kit art.425) according to the ratio de-
scribed on table 7.
ANALOGUE
INPUT
0V
...
5V
...
10V
In the event of such analogue input (0-10V) being discon-
nected, the corner current value remains fixed at 50%
(default) of the cutting current.
With the switch #2 in ON position, the analogue input de-
scribed above is ignored by the power source and the op-
erator can regulate the value of the corner current directly
from the gas console panel by means of the knob O.
The following illustration shows signal timing:
Segnale di Corner
Corrente di taglio
Corrente di corner
4.2.4.3 Management of torch cooling time at end of
cutting
At the end of each cut of the piece being worked, the
flow of secondary gas starts again to cool the torch. The
duration of this flow depends on the cutting current and
increases along with the current itself.
Sometimes, for specific jobs, it may be a good idea to
reduce such duration.
The operator can adjust the Post-Flow (PoF) time directly
from the gas console panel by means of the knob O. In
particular, the max duration of such time can be adjusted,
depending on the set cutting current, by up to 5 seconds
at the most.
CORNER IMPLEMENTED
CURRENT VALUE
½ of cutting
50%
current
...
¾ of cutting
75%
current
...
same as cutting
100%
current
Tab. 7
SELECTION
(pressing
button E)
4.2.4.4 Display of coolant (H2O) flow rate and tem-
perature
In this mode, the flow rate of the coolant/temperature can
...
be displayed on screen N/Q, in litres/min/C°. This is nor-
mally 3 litres/min.
4.2.4.5 Making the cut on perforated or gridded plates
...
(SR)
To cut perforated or gridded plates, it is often best to use
the Self Restart function. With such function started, the
power source restarts the arc every time this is interrupt-
ed. The pantograph must also be prepared for cuts of this
type.
SELECTION
(pressing
button E)
4.2.4.6 Fine remote current adjustment (RRI)
This function, available in the "second functions" menu of
the gas console, requires the optional kit art.425.
Make reference to the instruction manual of the latter for
a complete description.
DESCRIPTION
Post Flow
(duration of torch
PoF
cooling flow at
end of cut)
DESCRIPTION
Self Restart
(enables/disa-
SR
bles self restart
function)
SELECTION
(turning knob O)
From 5 to T s
(T=max duration in
seconds, depending
on cutting current)
SELECTION
(turning knob O)
OFF = disabled
ON = enabled
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