Mma Dc Process; Mma Ac Process; Mma Dc/Ac Process Parameters - Cebora ARCO Manual De Instrucciones

8�1

MMA DC Process

In section Q - fig. 4 of the main screen, select DC
8�2

MMA AC Process

In section Q - fig. 4 of the main screen, select AC
In the MMA AC this process, the output current frequency is 50 Hz and the output waveform is square.
8�3

MMA DC/AC process parameters

Description
Hot Start
Improves ignition even when using electrodes with poor ignition
properties
Arc Force�
0 voltaic arc with little spatter, barely defined
100 voltaic arc with spatter, but stable
Hot start time�
To be adjusted according to the diameter of the electrode to be
welded.
Antistick�
Function that prevents the electrode from bonding to the
workpiece
Cut off Voltage�
Arc cut-off voltage Once the set voltage is reached, the arc
is extinguished, avoiding optical flashes and preserving the
electrode for subsequent ignitions.
VRD�
This function reduces power source no-load voltage, required
in environments with a high explosion risk.
MMA AC process and VRD function not available in 380, 381 power sources
MMA Process main screen
NOTICE
Min DEF Max UM
0 50 100 %
0 30 100 %
0 0.15 1 s
OFF ON -
OFF 70 70 V
ON OFF
Sol�
1
1
0.01
-
1
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