Possibility To Change Welding Parameters; Setting The Joining Pressure And Starting The Bead Build-Up Stage - Hürner 500-R Bedienungsanleitung

tor gradually clockwise. Watch the display closely to observe at which
pressure level the carriage is "dragged" to start moving.
The START/SET key has to be pressed when the carriage starts moving,
in order to save the drag pressure applicable to this welding to
memory.
The exact drag pressure depends on various conditions (pipe
size and material, position of the machine, etc.) and has to
be determined for every welding individually.
Important

4.3.3 Possibility to Change Welding Parameters

Subsequent to setting the drag pressure, Display 16 shows on the
screen, provided that manual data input is enabled in the Reporting
sub-menu of the Configuration Menu.
The two screens enabling manual input of welding parameters (Dis-
plays 16 and 17) allow the selection of a line using the ñ and ò cursor
keys. After selecting a line, its parameter value is changed using the
ï, , ñ, ò keys. The START/SET key serves to confirm the inputs. By
pressing the START/SET key, you also make the control unit go on to
the next screen.
The parameters set manually are kept in memory when the
machine is turned off. Only the pressure values are computed
individually for every welding process. If the pipe parameters
Info change, all parameters have to be set once again. The ma-
chine recognizes the change of pipe parameters and brings
the operator directly to the menu that allows changing
them.

4.3.4 Setting the Joining Pressure and Starting the Bead Build-up Stage

After butt facing and pipe alignment check, the welding process proper
starts by setting the joining pressure (i.e., the maximum pressure that
will be reached during the process, in the bead build-up stage and at
the end of the joining stage). This is done by pushing the mover lever
to its close-in position and setting the maximum pressure regulator
to the level to be kept during bead build-up and joining/cooling. The
actual pressure shows (see Display 18) and the control software moves
on to the next step as soon as the pressure is within tolerance.
The display also shows the nominal joining pressure applicable to this
welding. After setting the joining pressure, move apart the carriage
of the machine.
The so-called automode is a tool for monitoring the duration
of the bead build-up stage and moving on automatically from
the bead build-up to the heating stage by decreasing the
Info applied pressure. However, this requires that the automode
was enabled in the Configuration Menu and that a bead
build-up time was saved to memory in a previous welding
with the same pipe parameters and a comparable outside
temperature. If a relevant bead build-up time from a previous
welding is available and if the current outside temperature is
within ± 5°C of that of the previous welding, then Display 19
is shown if the automode is enabled. To apply the build-up
time of the previous welding to this welding, press START/SET.
To refrain from using it, press STOP/RESET. A non-automatic
bead build-up (automode disabled, pipe parameters/ambi-
ent conditions not sufficiently similar to previous welding,
16
EN
HÜRNER WeldControl 500-R User's Manual
H Ü R N E R S c h w e i s s t e c h n i k G m b H
Nieder-Ohmener Str. 26
35325 Mücke, Germany
Buildup pr.:030.5bar
Heatsoakpr.:010.5bar
Heatsoaking:0120 s
Change-over:0005 s
Cool. time :900
Press. ramp:010
Plate temp.:223
Set Joining Pressure
230°C NOM.
229°C ACT.
**** AUTOMODE
Use last bead
build-up time?
RESET
Display 16
s
s
°C
Display 17
16.5bar
3.5bar
Display 18
****
SET
Display 19
Version May 2011