ESAB CIGWELD WeldSkill 205AC/DC Operating Manual page 31

5. Power ON Indicator
The POWER ON indicator illuminates when the ON/OFF switch is in the ON position and the correct mains
voltage is present.
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 in-built protective devices
acting. If this occurs the Power Source will not turn On and the Power On indicator on
the front panel will flash indicating that this protective device has been activated. Turn
the Power Source On/Off switch to the Off position for several minutes to allow for the
protective devices to reset.
6. Fault Indicator (Thermal Overload)
The Fault Indicator illuminates when Thermal Overload exists. This is due to the duty cycle of the power
source being exceeded. Once the power source cools sufficiently it will automatically reset and the Fault
Indicator and the power source is then able to continue welding. During the time of cooling the power
source should remain ON such that the fan continues to operate allowing the unit to cool sufficiently.
If after 30 minutes with the fan running the Fault Indicator has not gone OFF then have an Accredited
CIGWELD Service Provider check the power source.
7. Process Selection Button
The process selection control is used to select the desired welding mode. Five modes are available GTAW
(AC TIG, AC Pulse TIG, DC TIG, and DC Pulse TIG) and MMAW (Stick) modes.
Note that when the unit is powered off when in STICK mode the mode selection control will automatically
default to DC TIG 2T mode.
This is necessary so as to prevent inadvertent arcing should an electrode holder be connected to the unit
and mistakenly be in contact with the work piece during power up.
8. Trigger and Spot Mode Control Button (TIG Mode only)
The trigger mode control is used to switch the functionality of the torch trigger between 2T (normal), ,
4T (latch mode) and Spot mode.
2T Normal Mode
In this mode, the torch trigger must remain depressed for the welding output to be active. Press and hold
the torch trigger to activate the power source (weld). Release the torch trigger switch to cease welding.
Manual 0-5555
Figure 4-3
4-3
A-13897
OPERATION