Telwin PLASMA 30, Instruction Manual

- Arc striking system

:  

contact between  mobile 

electrode and nozzle

- Cutting current

:

15 ÷ 30 A

- Weight (kg )

:

1.4 kg

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.

TAB.1

6. THERMAL CUTOUT AND ABNORMAL VOLTAGE
( RED LED for general warning) 

- 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 

are properly assembled by inspecting the head  of the torch 
as shown on paragraph “TORCH MAINTENANCE”.

LOCATION AND HANDLING OF POWER SOURCE

- Choose location verifying that there is a good air flow  and 

WARNING !

no dust, smoke or gas is present.

SAFETY OF PLASMA CUTTING SYSTEM.

- Make sure that obstacles do not prevent the cooling air 

Only the type of torch and its relative  connection to the 

flow out of front and rear openings of the machine.

power source indicated  in   the “TECHNICAL DATA” ensure 

- Arrange

an open space  of at least  500 

the efficacy of the safety measures adopted by the 

mm. 

around 

the 

machine.

manufacturer  (interblocking system).

- In case the machine has to be moved always disconnect 

the plug from the outlet and gather the cables and pipes so 

- DO NOT USE

 torches and relative consumables different 

as not to damage them. 

from original ones.

- DO NOT TRY TO FIT 

 torches  for cutting or welding 

procedures to this power source, if they are not described 

4. CONTROL, WARNING  AND SAFETY 

in these instructions.

DEVICES.

- IF THESE RULES ARE NOT OBSERVED

 serious 

POWER SOURCE

dangers may occur both to the user and to the machine.

Figure (C) See drawing of  back and front panel 

3. INSTALLATION

1. GENERAL SWITCH  O - I. (Fig.C-1

ASSEMBLING  OF SEPARATE PARTS:

In position

 I 

(ON) the machine is ready for functioning green 

Unpack the Plasma 30 and assemble the different parts: 

signal  light and green led 

 (Fig.C-9)

 indicating mains ON 

see picture of  the compressed air connection.

are lit.

COMPRESSED AIR CONNECTION

Control and duty circuits are fed but there is 

no voltage in 

Arrange a compressed air distribution line having the 

the torch (STAND BY).

following minimum features: Air pressure 4 bars; capacity 

In position

 0

 (OFF) any functioning is inhibited, control 

100 L/min.

devices and warnings light are off.

WARNING !

2. CUTTING CURRENT POTENTIOMETER  (Fig. D)

Air with considerable quantities of humidity or oil may 

It allows to set the intensity of cutting current supplied by the 

cause an excessive wear of the parts or even damage 

machine according to the use (thickness of 

the torch.

material/speed). See TECHNICAL DATA for proper 

If there are any doubts about the quality of  the compressed 

relation of intermittence on/stand by to be adopted 

air available, we advise to use an air dryer, to be installed 

according to selected range. (period = 10 min.).

above the entry filter.
Connect, by means of a flexible piping, the compressed air 

3. PRESSURE REGULATOR (PLASMA COMPRESSED 

line to the machine, using one of the connectors included to 

AIR). (Fig.C-3)

be set on the entry air filter, which is on the rear of the 

Use the knob (turn and twist to release) to adjust pressure 

machine.

untill you come to the value shown on TORCH TECHNICAL 
DATA.  Push knob to lock the adjustment.

Figure (B) compressed air connection 

4. GAUGE (Fig.C-4)

WARNING !

Read requested value (bar) on gauge.

Do not exceed maximum entry pressure of 8 bars.

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.

CONNECTION TO GROUND CABLE

- If the pilot arc is not moved to the part within max. 2 

Connect the work cable clamp to the piece to be cut or to the 

seconds.

metallic  workbench.Take  following precautions:

- If the cutting arc interrupts because it is too far from the 

- VERIFY THAT THERE IS A GOOD ELECTRIC CONTACT 

torch-part, or the electrode is worn out, or the torch has 

PARTICULARLY IF INSULATED OR OXIDATED COATED 

been forced away from the part.

SHEETS ARE CUT. MAKE GROUND CONNECTION AS 

- In presence of a SECURITY system.

CLOSE AS POSSIBLE TO CUTTING AREA. THE USE 
OF METALLIC  STRUCTURES  WHICH ARE NOT PART 
OF THE  WORKPIECE, SUCH AS  THE RETURN 

(Fig.C-6)

CABLE OF THE CUTTING CURRENT,  MAY 
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 

 on a level surface

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