helvi COMPACT 300 Betriebsanleitung Seite 28

WELDING PARAMETER CONTROL
PANEL
9 8 10 11 3 12 13 14 15A
Hs Af
9 8 10 11 3 12 13 14 15B
Hs Af
9 8 10 11 3 12 13 14 15
Hs/ Af Ib Hz 2 Iw
28
Iw 2
300
Iw 2
300C
Icf
305HF
Fig. 14
8. Selection button (red LED on) for the re-
gulation of the current from the front panel
or from the remote control
16A
Note: With the system in H2O configura-
tion, keep this button pressed for 5 se-
conds: the LED will start flashing and the
display (pos. 3) will show the message
"H2O" for a few seconds. To return to the
air version of the system configuration (no
cooling unit and H2O torch), keep button
8 pressed for 5 seconds. The red LED
that was flashing will now remain on.
9. Selection button (red LED on) for the vi-
sualization of welding voltage or current
on the appliance
10. Power voltage present (green LED on)
11. Thermal protection intervention (yellow
LED on)
Note: With the system in H2O configura-
16A
tion, the yellow LED will start flashing to
warn of insufficient cooling fluid pressure/
flow and the welding process will be in-
terrupted.
WARNING: When the yellow LED is on,
do not cut off power from the current
generator, as this would interrupt ven-
tilation to the overheated parts. When
the LED goes off, the welding process
may continue.
12. Indicates the absence of voltage between
the output (+) and (-) clamps of the live
generator (green LED, pos. 10, on). The
red LED will light up:
* when the electrode welding (MMA) with
16
active VRD function (ON) is completed;
* when the TIG arc-off welding is com-
pleted and the torch button is released
(OFF);
* due to the intervention of internal protec-
tions of the generator or for other defects.
13. Anomalies on the power voltage.
14. Selection button (red LED on) for TIG or
MMA welding procedure.
15. Selection button for 2T or 4T torch (red
LED on); press the button again and the
red LED will start flashing and will switch
to 2T or 4T pulsed mode (depending on
the selection made before).
15A Activation/exclusion button (red LED on)
for the VRD function in MMA (when acti-
ve, 2 seconds after the electric arc goes
off the empty voltage of the generator
drops to 12 Vcc).