No. P10355
|48 |
10. OPERATION (continued)
(12) Arc voltage direct detection ON/OFF selection: F12
When using an extension cable results in abnormal generation of spatter or
when unstable welding is caused from malfunction of pulse weld, use a
voltage detection cable (optional accessory K5416G00) for directly detecting
arc voltage(-). When using an extension cable that is more than 30 m long,
use an arc voltage direct detection cable. Connect between base metal and
wire feeder or the direct voltage detection (-) terminal inside the welding power
source. (Voltage detection cable K5416G00 is a 30 m single core cab tyre
cable. Cut it as necessary.)
After connecting the voltage detection cable, activate the function of voltage
direct detection by setting F12 to “on”. The function is preset to “oFF” (invalid)
at factory.
NOTE: When using the equipment with such as brush for feeding parts
like a turn table, connecting the voltage detection cable to the terminal
for the base metal power cable after setting F12 to “on” is recommended.
(13)Fine Adjustment of Pulse Peak Current
The unit pulse conditions (pulse peak current/time and base current) at pulse
welding is set properly according to welding method and wire diameter, but
you can make the fine adjustment to obtain the optimum conditions of unit
pulse according to the wire brand or welding position.
x
The finely adjustable range of pulse peak current is 0 A to r150 A. The peak
current is set by 1A.
x
The finely adjustable range of pulse peak time is 0 ms to r1.5 ms. The pulse
peak time is set by 0.1 ms.
x
The fine adjustable range of base current is 0 A to r60A. The base current
is set by 1 A.
In function mode, when pressing the DISPLAY CHANGE key [8] during the
fine adjustment of pulse width, the DISPLAY CHANGE lamp lights up (located
at the upper left of the DISPLAY CHANGE key). Under this condition, you can
switch the fine adjustment value shown in the right display to the modulus (the
value which is substrusted or added the fine adjustment value from the
standard value). When pressing the DISPLAY CHANGE key, you can return to
the fine adjustment value display mode.
[Example of Fine Adjustment of the Unit Pulse Conditions]
When making a fine adjustment of the unit pulse conditions, adjust the pulse
peak time first. Take longer fine adjustment time when large droplet and
unstable arc (droplet transfer) occurs. Take shorter fine adjustment time when
sharp tip of wire and extremely strong arc occurs. Adjust the pulse peak
current following the same steps as pulse peak time adjustment.
[Precaution for the Fine Adjustment of the Unit Pulse Conditions]
Maximum pulse peak current which can be output varies depending on the
type (capability) of welding machine or arc load. When the pulse peak current
finely adjusted exceeds the maximum pulse peak current, the preset pulse
peak current is not output.
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