HTP Invertig 313, Руководство пользователя

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When the Asymmetric arc function is active, you can see
the Asymmetric arc limitation in the LCD. If you limit
EP, ASYM EP displays in purple, as do the frequency and
balance values (
Fig. 33 ). If you limit EN, ASYM EN
displays in red ( Fig. 34 ), as do the frequency and
balance values. The limitation value itself, however, is
NOT shown on the main screen; you can only see the
limitation value in the AC adjustment screen.
If you want to get out of AC mode and go back to DC
mode, press button
B ( Fig. 11 ) and then press button
D ( Fig. 11 ) to turn AC mode off, which effectively
puts the machine back into DC mode, as indicated in
blue at the top right-hand corner of the LCD (
Fig. 35 ).
In order to access the TIG - MAIN SETTINGS submenu,
press button
E ( Fig. 11 ), and the following screen
appears ( Fig. 35 ).
Here, you can select your pre-gas flow in seconds. by
turning encoder F ( Fig. 11 ) until you reach your
desired pre-gas flow duration. In Fig. 36 , we set a pre-gas
flow duration of 0.4 seconds.
In order to adjust the next value of the sequencer, in this
case t1 (slope up), press button
C ( Fig. 11 ; the green
arrow in this instance).
When using a remote control, the t1 value is fixed (not
adjustable) as you typically use the remote control to
determine how fast the slope up should be. With a
momentary (arc on/off) switch, the t1 adjustment
feature is available. Use button
C ( Fig. 11 ; the green
arrow in this instance), to move to t2 (slope down).
Here, you can adjust the slope down duration in seconds.
Like t1 (slope up), it is very uncommon to set slope
down when using a foot pedal. However, setting a slope
down time may be done to implement a fail safe in an
attempt to avoid abrupt termination of the weld and
subsequent crater formation, which leads to weld
defects. Use button
C ( Fig. 11 ; the green arrow in this
instance), to move to the final station of the sequencer—
post-gas flow (
Fig. 39 ).
Fig. 33 Fig. 36
Fig. 38
Fig. 37
Fig. 35
Fig. 34