Compressed Air Connection; Power Source - Telwin PLASMA 30 Manual

- Arc striking system
- Cutting current
- Weight (kg )
WARNING !
SAFETY OF PLASMA CUTTING SYSTEM.
Only the type of torch and its relative connection to the
power source indicated in the "TECHNICAL DATA" ensure
the efficacy of the safety measures adopted by the
manufacturer (interblocking system).
- DO NOT USE torches and relative consumables different
from original ones.
- DO NOT TRY TO FIT
procedures to this power source, if they are not described
in these instructions.
- IF THESE RULES ARE NOT OBSERVED serious
dangers may occur both to the user and to the machine.
3. INSTALLATION
ASSEMBLING OF SEPARATE PARTS:
Unpack the Plasma 30 and assemble the different parts:
see picture of the compressed air connection.

COMPRESSED AIR CONNECTION

Arrange a compressed air distribution line having the
following minimum features: Air pressure 4 bars; capacity
100 L/min.
WARNING !
Air with considerable quantities of humidity or oil may
cause an excessive wear of the parts or even damage
the torch.
If there are any doubts about the quality of the compressed
air available, we advise to use an air dryer, to be installed
above the entry filter.
Connect, by means of a flexible piping, the compressed air
line to the machine, using one of the connectors included to
be set on the entry air filter, which is on the rear of the
machine.
Figure (B) compressed air connection
WARNING !
Do not exceed maximum entry pressure of 8 bars.
POWER SUPPLY CONNECTION
The machine must be connected to a Line-Neutral system
with a "PE" protected grounding wire.
Check that the relevant socket terminal is actually
connected to the distribution system grounding.
CONNECTION TO GROUND CABLE
Connect the work cable clamp to the piece to be cut or to the
metallic workbench.Take following precautions:
- VERIFY THAT THERE IS A GOOD ELECTRIC CONTACT
PARTICULARLY IF INSULA TED OR OXIDA TED COATED
SHEETS ARE CUT. MAKE GROUND CONNECTION AS
CLOSE AS POSSIBLE TO CUTTING AREA. THE USE
OF METALLIC STRUCTURES WHICH ARE NOT PART
OF THE WORKPIECE, SUCH AS
CABLE OF THE CUTTING CURRENT,
ENDANGER THE SAFETY SYSTEM AND GIVE POOR
CUTTING RESULT S.
DO NOT MAKE A GROUND CONNECTION ON THE
PIECE WHICH HAS TO BE REMOVED.
WARNING !
Before starting with cutting operations verify that the parts
All manuals and user guides at all-guides.com
: contact between mobile
electrode and nozzle
: 15 ÷ 30 A
:
torches for cutting or welding
TAB.1
THE RETURN
are properly assembled by inspecting the head of the torch
as shown on paragraph "TORCH MAINTENANCE".
1.4 kg
LOCATION AND HANDLING OF POWER SOURCE
- Choose location verifying that there is a good air flow and
no dust, smoke or gas is present.
- Make sure that obstacles do not prevent the cooling air
flow out of front and rear openings of the machine.
- Arrange on a level surface
mm. around the machine.
- In case the machine has to be moved always disconnect
the plug from the outlet and gather the cables and pipes so
as not to damage them.
4. CONTROL, WARNING
DEVICES.

POWER SOURCE

Figure (C) See drawing of back and front panel
1. GENERAL SWITCH O - I. (Fig.C-1
In position I (ON) the machine is ready for functioning green
signal light and green led (Fig.C-9) indicating mains ON
are lit.
Control and duty circuits are fed but there is no voltage in
the torch (STAND BY).
In position 0 (OFF) any functioning is inhibited, control
devices and warnings light are off.
2. CUTTING CURRENT POTENTIOMETER (Fig. D)
It allows to set the intensity of cutting current supplied by the
machine according to the use (thickness of
material/speed). See TECHNICAL DA TA for proper
relation of intermittence on/stand by to be adopted
according to selected range. (period = 10 min.).
3. PRESSURE REGULATOR (PLASMA COMPRESSED
AIR). (Fig.C-3)
Use the knob (turn and twist to release) to adjust pressure
untill you come to the value shown on TORCH TECHNICAL
DATA. Push knob to lock the adjustment.
4. GAUGE (Fig.C-4)
Read requested value (bar) on gauge.
5. ENERGIZED TORCH (YELLOW SIGNAL LIGHT).
(Fig.C-5)
- When lit it shows that cutting circuit has been
activated: Pilot arc or cutting arc "ON".
- It is usually off (disengaged cutting circuit) with non
activated torch button (stand by).
- It is off, with torch button pushed, under following
conditions:
- During PREGAS (0.3s) and POSTGAS (>30s) phases.
- If the pilot arc is not moved to the part within max. 2
seconds.
- If the cutting arc interrupts because it is too far from the
torch-part, or the electrode is worn out, or the torch has
been forced away from the part.
- In presence of a SECURITY system.
6. THERMAL CUTOUT AND ABNORMAL VOL TAGE
( RED LED for general warning)
MAY
- When lit, it signals overheating of some component in the
power circuit, or abnormal input voltage of the power
supply (undervoltage or voltage surge)
- During this phase machine operation is disabled.
- Reset is automatic (the red led goes off) 4 sec after the
abnormal value (as described above) returns within the
- 11 -
an open space of at least 500
AND SAFETY
(Fig.C-6)