OPERATING MANUAL
Transmig 220i
Transmig 255i
Transmig 255i
Manual 0-5550
4-7 OPERATION
17. On / Off Switch
This Single Phase circuit breaker performs a dual function.
It is used to turn the unit on/off and it will also trip in the event of a fault.
WARNING
When the front digital displays are lit, the machine is connected to the Mains supply voltage and the internal
electrical components are at Mains voltage potential.
NOTE
If the Power Source is repeatedly switched On then Off rapidly or the supply to the power source is turned On and Off
rapidly it may not turn On due to inbuilt protective devices acting. If this occurs leave the Power Source On/Off switch
turned to the Off position for several minutes to allow for the protective devices to reset.
18. Wiredrive Motor Circuit Breaker
The 4A Circuit Breaker protects the unit from electrical faults and will operate in the event of a motor overload.
NOTE!
If a circuit breaker trips, a short cooling period must be allowed before an attempt is made to reset the unit by pressing
the circuit breaker reset button.
19. Local / Remote Switch (located in wirefeed compartment)
The remote / local switch is used only when a remote control device (such as a TIG torch with remote
current control or spool gun with remote wirespeed control) is fitted to the unit via the remote control
socket (Item 9). When the local/remote switch is in the remote position, the unit will detect a remote
device and work accordingly. When in the local mode, the unit will not detect the remote device and will
operate from the power source controls only. Note that the trigger will operate at all times on the remote
control socket irrespective of the position of the local remote switch (ie in both local and remote modes).
Should a remote device be connected and the remote/local switch set to remote, the maximum setting
of the power source will be determined by the respective front panel control, irrespective of the remote
control device setting. As an example, if the output current on the power source front panel is set to 50%
and the remote control device is set to 100%, the maximum achievable output from the unit will be 50%.
Should 100% output be required, the respective front panel control must be set to 100%, in which case
the remote device will then be able to control between 0-100% output.
20. Burnback Control (located in wirefeed compartment)
The burnback control is used to adjust the amount of MIG wire that protrudes from the MIG torch after
the completion of MIG welding (commonly referred to as stick out). To decrease the burnback time (or
lengthen the amount of wire protruding from the MIG torch at the completing of welding), turn the burnback
control knob anti clockwise. To increase the burnback time (or shorten the amount of wire protruding from
the torch at the completing of welding), turn the Burnback Control knob clockwise.
21. Local / Spool Gun Switch (located in wirefeed compartment)
The Local / Spool Gun switch is used only when a Spool Gun is fitted to the unit via the remote control
socket (item 9). When the Local/Spool Gun switch is in the Spool Gun position, the unit will control the
wire drive motor in a Spool Gun. When in the local mode, the internal Wire Drive Unit is active.
Note that the trigger will operate at all times on the remote control socket irrespective of the position of
the Local / Spool Gun switch (ie in both local and Spool Gun modes).