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10. OPERATION (continued)
10.3.2 Adjustor
knob
To adjust parameters with adjustor knob [4] during welding, depress the parameter selection
key [3] to change the mode into the Set Value Indication mode. The initial conditions, main
conditions and crater filler conditions become changeable during initial current, main welding
and crater, respectively.
During welding period, the welding current (base current) may be adjusted immediately after it
is switched to the Set Value Indication mode. In addition to welding current (base current), two
other parameters (pulse current and pulse frequency) may be also adjusted during welding
period with the parameter selection key [3] depressed. Also, even by pressing the AC FREQ.
key [6], AC BALANCE key [7] and AC-DC change-over frequency setup key [8], the set point
mode is selected, and the adjustment becomes possible during any period.
During welding period, the parameters may not be adjusted in the Average Indication mode.
10.3.3
Key Lock (available only at TIG welding)
Key lock is a function to prevent the welding conditions from being changed by accidentally
operating keys and knobs on the front panel. Only the keys and parameter adjusting knob
which are used for changing each parameters and modes can be protected. However, the
settings can be checked and confirmed by using the Parameter selection key [3] and the Arc
SPOT TIME setting key [9].
Holding down both the F [10] key and ENTER key [19]
simultaneously
Holding down both the F key [10] and ENTER key [19]
simultaneously for a while brings the key-lock condition.
While keys are locked, the F lamp (located at the upper
left of the F key) blinks. Key lock can be cancelled by
holding both the F key and ENTER key simultaneously
for a while again. Key lock cannot be cancelled by
starting the machine up again.
While keys are locked, the F lamp blinks
Even when the keys are locked, GAS CHECK, INCHING, and JOB MEMORY function
can be activated.
10.3.4
JOB MEMORY Function (available only at TIG welding)
The JOB MEMORY function enables welding conditions to be reproducible by storing the
welding conditions in memory inside power source and by reading out the stored data at any
time. The number of welding conditions that can be held in memory is up to 100.
㧲
ENTER
GAS
T1