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10. OPERATION (continued)
(16) Current offset adjustment: Function No. “20” ---- x
If a welding cable is made long in case for AC TIG welding in point of welding current
characteristics, the actual average welding current (value indicated on the ammeter) becomes
smaller than the set current, and as the welding current is larger, its difference becomes larger.
In such a case, the difference between the set current and actual average welding current can be
made smaller by regulating welding current with Function No. “20”. This function is effective if
used when no actual current reaches 300A, for example in case where the welding cable was
extended. This function also works in the case of DC TIG or DC manual welding.
The setup range is 0 to 30. If the set point is incremented by 1, as a standard, the average
welding current increases by approx. 1A. Also, the set adjustment amount is constantly added in
all current ranges.
(17) Memory condition interlocking function (At the time to connect TIG filler):Function No. “21”
When the welding power source is connecting with TIG filler controller HC-71D, the JOB memory
function of the welding power source and the feeding condition memory function of the TIG filler
controller can be synchronized; and the memory condition number can be shared. For example,
when condition number 2 is read, not only the welding condition number 2 is read but also the
feeding condition number 2 is read from the feeding condition memory of the TIG filler controller.
When Function No.21 is turned “ON”, the memory condition is synchronized. The factory setting
of this function is “OFF” and invalid.
(18) Current adjustment function with torch switch at pulse function: Function No. “22”
When the pulse is "on", and function number "17" is "on", and the function of the current fine-
adjustment with the torch switch is effective, operation can be changed as follows by the function
number "22".
The factory setting of this product is "1".
“1”: Only the pulse current changes by the click operation. The base current doesn't
change.
“2”: Both pulse current and base current change with the click operation by the same
current amount (value is set with F18 and F19).
(19) Indication of welding voltage: Function No. “23”
Output voltage during welding is indicated on the right digital display by turning Function No.23
“ON”. This indication changes every 0.5 seconds by output condition. The representational
accuracy at this time is equal to 2.5 grades and it is the same class as general analog meter.
After weld is end, the last second average value of output current is blinked on and off and
displayed as the result indication time.
(However the output condition of crater filler should be ignored.)
The factory setting of this function is “OFF” and invalid.
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NOTE
Average value of output on the digital meter is treated by software, which means it can
not guarantee as control date of measurement apparatus. (The representational is equal
to 2.5 grades.)