Telwin 954009, Instruction Manual

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2-   LED indicating that the TORCH OR ELECTRODE IS POWERED.

3-  LED indicating WELDING MACHINE PROGRAMMING.

4 -   RECALL  key  for  downloading  customised  welding  programmes  (see 

section 4.3.2.4).

5-   SAVE key for saving customised welding programmes (see section 4.3.2.3).

6-  Welding programme selection key and 2-digit display.

As the key is pressed repeatedly, the display will show the numbers from “0” to 

“54”. Each number between “1” and “54” is associated with a synergic welding 

programme 

(see TAB. 3)

 while “0” is associated with manual welding machine 

operation, where the operator is able to insert settings for all the parameters 

(only for MIG-MAG SHORT and SPRAY ARC).

7-  Key for selecting welding procedure.

When this key is pressed the LED corresponding to the intended welding mode 

will light up:

  :  MIG-MAG with “SHORT/SPRAY ARC” mode.

  :  MIG-MAG with “PULSE ARC” mode.

  :  MIG-MAG with “PULSE ON PULSE” mode.

 : TIG.

   :  MMA electrode.

8-   Key for selecting MIG-MAG torch button control mode.

When this key is pressed the LED will light up corresponding to:

:  2- stroke operation, ON-OFF with button pressed.

  :  4- stroke operation, ON-OFF with button released.   

  :  bi-level operation for MIG-MAG, TIG.

  :  MIG-MAG SPOT welding.

9-  Key for switching on remote control.

When the LED 

  is lit, adjustments can only be made by remote 

control, i.e.:

a) single potentiometer control (only MMA and TIG):

 replaces the function of 

the encoder knob 

(14).

b) control by two potentiometers:

 replaces the function of encoder knobs 

(14)

and 

(13)

.

c) pedal  control  (only  MMA  and  TIG):

 replaces the function of the encoder 

knob 

(14)

.

NOTE: It is only possible to select REMOTE if a remote control is actually 

connected to the corresponding socket.

10-  Key for selecting welding parameters.

Pressing the key repeatedly will light up one of the LED’s from (10a) to (10h), 

each  associated  with  a  specific  parameter.  The  setting  for  each  activated 

parameter is made using the knob (13) and is shown on the display (15). While 

making these settings knob (14) adjusts the value of the main welding level 

shown on the display (16), either current or wire feed rate (see description at 

point (14)), except for LED (10b).

Knob (14) can only be used to adjust the secondary level when LED (10b) is ON 

(see description of LED (10b)).

Note: Parameters that cannot be modified by the operator, depending on whether 

you are working with a synergic programme or in manual mode (“PRG” 0) are 

automatically excluded so that they cannot be selected; the corresponding LED 

will not light up.

10a- 

• MIG-MAG

  This parameter is displayed automatically during MIG-MAG welding operations, 

and shows the actual arc voltage (LED (15a) is ON).

•  MIG-MAG Pulse Arc

  When setting a MIG-MAG Pulse Arc synergic programme this parameter is 

used to set the correction to be made to the arc length as calculated in synergy 

(range from -5% to +5%) (LED (15c) ON). 

  In the same mode, setting bi-level, pulse on pulse or Tstart mode will cause the 

parameter to take the value of arc length correction at the main welding level 

as calculated in synergy as above (range from -5% to +5%) (LED (15c) ON).

•  MIG-MAG Short Arc

When setting a MIG-MAG Short Arc synergic programme this parameter is 

used to set the correction to be made to the arc length as calculated in synergy 

(range from -5% to +5%) (LED (15c) ON).

  In the same mode, setting bi-level mode will cause the parameter to take the 

value of arc length correction at the main welding level as calculated in synergy 

as above (range from -5% to +5%) (LED (15c) ON).

•  MIG-MAG Short Arc “PRG 0”

Also in MIG-MAG Short Arc mode, manual programming (“PRG 0”), this 

parameter used to set the actual arc voltage (range 10-40) (LED (15a) ON).

  In the same mode, setting bi-level mode will cause the parameter to take the 

value of actual arc length at the main welding level as calculated in synergy as 

above (range 10-40) (LED15a ON).

10b- 

•  MIG-MAG Pulse Arc

In MIG-MAG pulse arc mode, setting bi-level, pulse on pulse or Tstart mode will 

enable adjustment of currents I

1

 and I

s 

(I

start

) (using knob (14)) and correction of 

arc length (using knob (13)) for the secondary welding level, as calculated in 

synergy (range from -5% to +5%)(LED (15c) ON).).

•  MIG-MAG Short Arc

For synergic MIG-MAG short arc programmes, setting bi-level mode will make 

it possible to adjust the current/wire feed rate (using knob (14)) and to correct 

arc length (using knob (13)) for the secondary welding level as calculated in 

synergy (range from -5% to +5%) (LED (15c) ON).

•  Bi-level “PRG 0”

When manual programming “PRG 0” is selected with bi-level mode, this 

parameter is used to adjust wire feed rate (using knob (14), (LED 16c) ON) and 

actual arc voltage (using knob (13)) for the secondary welding level I

1

 (range 

10-40) ((LED (15a) ON)

.

In TIG bi-level mode this parameter is used to adjust the welding current 

second level (I

1

).

10c- 
 

•  MIG-MAG “PRG 0”

In manual mode,“PRG 0”, this parameter is used to adjust wire feed rate as 

welding starts, in order to optimise arc strike (adjustment 1-100% and LED 

(15c) ON).

•  MIG-MAG Pulse Arc 2-STROKE

In MIG-MAG Pulse Arc 2-STROKE mode this parameter is used to adjust the 

length of start current time (T

start

). If the parameter is set to zero, the function 

is disabled, while with any setting greater than zero (adjustment range 0.1-

3 seconds) it is possible to select LED (10b) in order to set the arc voltage 

correction and the start current value (secondary level). The start current 

can be set at a higher or lower value than the main welding value; a higher 

start current is very useful, especially when welding aluminium and its alloys, 

making it possible to heat the piece more quickly (“Hot start”).

•  MIG-MAG Pulse on Pulse

In MIG-MAG Pulse on Pulse mode the parameter can be used to adjust the 

length of main welding current time (adjustment range 0.1-10 seconds and 

LED (15b) ON).

• MMA

With MMA electrode operation, the parameter takes the value of “Arc force”, 

so that it is possible to make the setting for dynamic overcurrent (adjustment 

range 0-100% and LED (15c) ON). Duing MMA welding, the display (15) will 

show the actual arc voltage (LED (15a) ON), and LED (10c) still remains on so 

that Arc force can also be adjusted during welding.

10d- 

•  MIG-MAG Pulse Arc

In MIG-MAG pulse arc mode the parameter determines arc pinch-off. The 

higher the value the more concentrated will be the arc during welding. In a 

welding mode using two current levels (bi-level, pulse on pulse or Tstart) arc 

pinch-off has the same setting for both levels (+1% / -1%). 

•  MIG-MAG “PRG 0”

In MIG-MAG “PRG 0” manual mode the parameter is used to adjust electronic 

reactance (adjustment range 20-80% and LED (15c) ON). The higher the 

value, the hotter will be the weld pool. In bi-level mode electronic reactance 

has the same setting for both levels. 

•  MIG-MAG Pulse on Pulse

In MIG-MAG Pulse on Pulse mode the parameter can be used to adjust the 

length of secondary welding current time (adjustment range 0.1-10 seconds 

and LED (15b) ON).

10e- 
 

Wire BURN-BACK time when welding stops.

This parameter is used to adjust wire burn-back time at the end of welding. An 

appropriate setting will prevent the wire from sticking to the piece in manual 

mode (PRG 0) - MIG-MAG SHORT ARC (adjustment range 0.01-1 seconds and 

LED (15b) ON).

When setting a MIG-MAG synergic programme this parameter is used to set the 

correction to be made to BURN_BACK TIME as calculated in synergy (range 

from -1% to +1%, LED (15c) ON).

10f- 

 POST-GAS MIG-MAG SHORT ARC and TIG.

In any MIG-MAG SHORT ARC and TIG mode this parameter corresponds to 

“Post-gas” time, so that it is possible to adjust the time for which protective gas 

will flow after welding stops (adjustment range 0.1-10 seconds and LED (15b) 

(ON).

10g- 
 

Welding current SLOPE DOWN.

This is enabled only and exclusively when using MIG-MAG PULSE ARC or 

SHORT ARC synergic programmes (“PRG” from “1” to “54”) or TIG welding.

It is used to reduce the current gradually when the torch button is released 

(adjustment range 0-3 seconds and LED (15b) ON).

10h- 
 

SPOT WELDING TIME.

This is enabled only and exclusively if “SPOT” mode has been selected with key 

(8). It is used for MIG-MAG spot welding with welding time control (adjustment 

range 0.1-10 seconds and LED (15b) ON).

11-  Key for manual activation of gas solenoid valve.

This button causes gas outflow (piping discharge – flow rate adjustment) without 

having to operate the torch button; the action of the button is momentary.

12-  Key for manual wire feed.

This button is used to feed the wire along the torch hose without having to 

operate the torch button; the action is momentary and feed rate is fixed.

13-  Encoder knob for adjusting welding parameters (see 10a-10h).

14-  Encoder knob.

The knob adjusts:

-  Welding current (LED (16a) ON).

-  Wire feed rate (LED (16c) ON) in Short/Spray arc mode.

- The thickness of the piece being welded (LED (16b) on) if selected with key 

(17), piece thickness in mm. 

In a welding mode using two current levels (bi-level, pulse on pulse or Tstart), 

with LED (10b) ON the knob adjusts: 

-  Welding current I

1

 (LED (16a) ON) for the secondary level in Pulse arc mode.

-  Wire feed rate for the secondary welding level (LED (16c) ON) in Short/Spray 

arc mode.

15-  3-digit alphanumeric display. This shows: 

-  welding parameter values (see from (10a) to (10h)) in no-load operation.

-  the actual arc voltage during welding.

NOTE: when welding stops, the display automatically switches to the setting 

value.

-  an alarm indicator (see point 1).

15a, 15b, 15c- LED’s indicating current unit of measurement (volts, seconds, 

percentage).

16-  3-digit alphanumeric display.

 This shows:

-  the value of the setting made using the encoder knob (14).

-  the actual current during welding.

NOTE: when welding stops, the display automatically switches to the setting 

value.

-  an alarm indicator (see point 1).

16a, 16b, 16c- LED’s indicating current unit of measurement (current in amps 

(A), thickness in millimetres (mm) and wire feed rate metres/minute (m/

min)).

17-  Key for selecting unit of measurement – Amps, mm, mm/min (LED’s (16a)

(16b) (16c)).

Used to set weld material thickness, welding current and wire feed rate 

respectively, using the encoder (14).

“PRG 0” manual selection: the setting for each individual parameter is 

independent of the settings for the other parameters.

Programmes from “1” to “54”: the setting for each individual parameter (e.g. 

material thickness) automatically defines the values of the other parameters (e.g. 

welding current and wire feed rate).