CEBORA S.p.A
15
3.300.125-C
04/03/2016
GB
Making the Power Source ready for welding
deactivate the “Quick Stop” (equivalent to
initializes “Robot Ready”) and set the “Source
Error Reset” signal.
NOTE: If the “Robot Ready” signal has not been
set, none of the commands will be
acquired.
10.3
Gas Test (MIG-TIG).
Green light indicates function active.
The “Gas Test” signal actuates the gas solenoid
valve and so corresponds to the gas-test button on
the Control Panel or on the Wire Feeder.
You can set the required gas flow rate on the
pressure regulator on the gas cylinder.
The “Gas Test” signal can also be used for an
additional gas pre-flow during positioning.
As long as the welding process is active, the gas
pre-flow and post-flow times are controlled by
the Power Source. For this reason, it is not
necessary to initialise the “Gas Test” signal
during the welding process.
10.4
Wire Inching (MIG-TIG).
Green light indicates function active.
The “Wire Inching” signal causes the Wire
Feeder to start up and corresponds to the “Wire
Inch” button on the Control Panel and on the
Wire Feeder.
The “Wire Inching” signal allows the wire to be
fed into the torch hose pack with no flow of gas
or current.
The inching speed starts from 1 m/min., remains
constant for 5.0 s., then increases up to 8.0
m/min. in 5 s. approximately.
10.5
Wire Retract (MIG-TIG).
Green light indicates function active.
Causes the wire to be retracted. This can be used
for pulling the welding wire back out of the
torch, or retracting it by a certain distance.
The wire retraction speed is fixed to 1.0 m/min..
10.6
Source Error Reset (MIG).
Green light indicates function active.
An error message of the Power Source (“Source
Error”) may be reset by the “Source Error Reset”
signal. Before this, however, the cause of the
error must be found and put right.
If the Robot Control does not have a digital
signal for resetting, the “Source Error Reset”
signal can always be linked to +24 Vdc on the
Robot Control. The error is then reset as soon as
the cause of the error has been remedied.
NOTE: An error can only be acknowledged
properly if the “Source Error Reset”
signal remains initialised at least 10 ms.
10.7
Touch Sensing (MIG).
Green light indicates function active.
The “Touch Sensing” signal tells the user when
the welding wire is touching the workpiece (short
circuit between workpiece and wire).
When the “Touch Sensing” signal is initialised,
the blinking message “Touch Sensing” is shown
on “AN1” and “AN2” displays of the Control
Panel (see Control Panel Instruction Manual).
To perform this check the Power Source delivers
a voltage (with current limited to 1A) to the
welding wire. When the wire touches the
workpiece a message “YES” in shown on display
“P” of the Control Panel. The short circuit is
reported to the Robot Control by the “Current
Flow” signal with 10 ms max. delay.
NOTE: The “Current Flow” signal is outputted
for 0.2 s longer than the duration of the
short circuit current.
As long as the “Touch Sensing” signal remains
initialised, no welding can take place.
If the Robot Control initialises the “Touch
Sensing” signal during welding, the welding
operation is aborted after the burn-back time has
elapsed. It is now possible for position
recognition (Touch-Sensing) to be carried out.
10.8
Blow Through (MIG).
Green light indicates function active.
If the Wire Feeder has an additional solenoid
valve for compressed air, this is actuated by the
“Blow Through” command.
The signal “Blow Through“ allows the activation
of the compressed air supply. The compressed air
is used to clean the welding torch from dust and
chips, e.g. after the removal of welding spatter in
the torch cleaning station.
10.9
Welding Simulation (MIG).
Green light indicates function active.
The “Welding Simulation” signal makes it
possible to “weld” along a programmed welding
path but without any arc, wire feed, or shielding
gas.
The signals “Current Flow”, “Main Current” and
“Process Active” are initialised in the same way
as during a real welding operation.
During “Welding Simulation” the message
“running simul.” is shown on the Control Panel.
