HBS IT 1002 - Page 39

IT 1002 Order No BA 93-66-1206 Issue 03.11.08 39
During standard working process, the current output voltage value is compared with the
reference output voltage value. If this value is out of the set tolerance range, the system
indicates a deviation which is displayed via LED’s. If desired, the unit can be locked after
a deviation was indicated.
As an option, you can manually enter an output voltage value. This value must be
determined by 8 reference wedings in advance. In this way, the output voltage value can
be stored for different program sequences. So you can store a special output voltage
value for each stud/lot dimension and carry out a process monitoring.
Change to the box Weld or Enter with the arrow key , the following menu is
displayed:
REFERENCE MODE
WELDING
REFERENCE MODE
ENTER
With sequence 1, you determine the reference value, sequence 2 is manual entry. Use
the keys or to select the menu items.
Press the enter key , the following menu is displayed:
Reference Mode Welding
REFERENCE MODE
TOLERANCE: 10%
Here you define the tolerance range
Increase tolerance range
Decrease tolerance range
With the arrow key you change the settings
1% - small tolerance range = high sensitivity
20% - large tolerance range = low sensitivity
Press the enter key , the following menu is displayed:
REFERENCE MODE
STOP: OFF
or
REFERENCE MODE
STOP: ON
You change the menu boxes with or .
5 Stud Welding Procedure
5.6 Switching on the Power Unit