![](/images/new-backgrounds/1314075/31407533x1.webp)
OPERATION | ||
|
|
|
STARTING THE MACHINE
The power switch at the extreme right side of the con- trol panel energizes the
ADJUSTING THE OUTPUT VOLTAGE USING THE DIGITAL METER
The digital meters in the
To make use of the voltage preset function, the Volts/Amps switch must be in the "Volts" position. Turn the Voltage Adjust knob until the digital meter displays the desired weld- ing voltage. (See below if an external power source remote control is installed.)
When an arc is struck, the digital meter displays the actual welding voltage, as measured at the
NOTE: The arc voltage at the electrode may be as much as two volts different from the
To read welding current, set the Volts/Amps switch to the "Amps" position. The welding current will be displayed whenever an arc is struck.
LOCAL/REMOTE SWITCH OPERATION
If voltage control is desired at the
To use a remote control, such as the K857 (see INSTALLA- TION section), place the Local/Remote switch (see Figure B.1) in the "Remote" position. The remote control now con- trols the output voltage, in the manner described above. This control may be adjusted while welding to change the
AUXILIARY POWER
42 volt AC auxiliary power, as required for some wire feeders, is available through the wire feeder recepta- cle. A 10 amp circuit breaker protects the 42 volt cir- cuit from overloads.
NOTE: Do not use circuits 2 or 4 for control of auxil- iary loads. (The
CAUTION
Note that some types of equipment, especially pumps and large motors, have starting currents which are significantly higher than their running current. These higher starting currents may cause the circuit breaker to open. If this situation occurs, the user should refrain from using the
___________________________________________
OVERLOAD PROTECTION
This welder has thermostatic protection from exces- sive duty cycles, overloads, loss of cooling, and high ambient temperatures. When the welder is subjected to an overload or loss of cooling, a thermostat will open. This condition will be indicated by the illumina- tion of the yellow Thermostatic Protection Light on the case front (see Figure B.1).The fan will continue to run to cool the power source. No welding is possible until the machine is allowed to cool and the Thermostatic Protection Light goes out.