Current Flow (Active High); Main Current (Active High) - Cebora 217-01 Manual De Istrucciones

CEBORA S.p.A
When the Robot Control initialises the digital signal "Arc On", the welding process begins with the gas
pre-flow, followed by the welding operation itself and then the gas post-flow.
From the beginning of the gas pre-flow until the end of the gas post-flow, the Power Source initialises the
"Process Active" signal (fig. 7).
The "Process Active" signal helps to ensure optimum gas shielding by ensuring that the Robot dwells
sufficiently long time at the beginning and end of the weld seam.
7.5

Current Flow (active high).

Current Flow:
Current Flow:
The "Current Flow" signal is initialised as soon as there is a stable arc after the beginning of arc ignition.
7.6

Main Current (active high).

Main Current:
Main Current:
NOTE: As long as the "rob On" function is selected from Control Panel, the "2-step mode" automatically
remains selected (display shows : 2-step mode).
The following parameters are defined in the Power Source set-up menu (see Power Source Instruction
Manual):
- HSA: (Hot Start) starting current phase, with Starting Current (SC), Starting Current Duration (tSC)
and Slope (SLo).
- CrA: (Crater Arc) final current phase, with Final Current (CRC), Final Current Duration (tCR) and
Slope (SLo).
Between the starting current and final current phases, "Main Current" signal is initialised (fig. 7).
I
start event
1
0
1
0
1
0
1
0
3.300.129-C
+24 Vdc = J2, pin 4.
Gnd = J2, pin 3.
+24 Vdc = J2, pin 2).
Gnd = J2, pin 1).
Process Active
Current Flow
Main Current
Hot Start Main Current
fig. 7
stop event
Crater Filler
t
35
GB
26/01/2011