MK Products Advanced Color Logic Rev.C - Manual (Page 12)

Advanced Color Logic Owner’s Manual - Page 7
Regardless, if a series or the same serial number or if ten different
serial numbers are programmed, each will be displayed on the screen for
Performance Logging and on printouts for Deviation Reports.
The information above will not become an integral part of the procedure,
since it will not be saved when the procedure is saved.
This information will repeat for each and every procedure loaded that has
similar enabled options or, until the operator changes the data on these lines.
Even though the information is not saved with the procedure, it is however
printed on the Deviation Report and Saved to diskette as the current Weld
Log.
After all the data has been entered, the next screen will be the Weld Screen.
Once at the weld screen, the operator is ready to start welding.
2.3.4 Modes
On the front panel of the ACL, next to the key switch, is a green lighted-
push button switch. The label for this switch is Weld (button in) and Test
(button out). The operation of this push button switch does not change
whether in Production or Teach Mode.
When pushed in (green light on), the Weld Mode is enabled. This will
allow welding to occur during the operation of the procedure.
When pushed out (green light off), the Test Mode is enabled. In the
Test Mode, the entire weld procedure can be operated without welding
occurring.
In the top-middle of the Weld Screen, either a “W” or a “T” will appear,
depending which mode (Weld or Test) is selected.
2.4 Start Weld
A Weld and a Test Weld operate in the same manner except that in the Test
Mode the welding arc is not initiated. Otherwise, the Test sequence performs
in the same way as a weld sequence including weldhead rotation, system
timing and display.
Once at the weld screen, the operator may press [START] either on the HHC
or at the weldhead control. This will start the procedure:
The first part of the weld program is the gas Pre-Purge. At this point the gas
solenoid will turn on and gas will begin to flow.
If the Home Pre-Weld option is enabled, the rotor will complete
two revolutions at the higher Calibration Speed (see MOTOR
CALIBRATION), and then stop at home, prior to starting the Pre-Purge.
This is done to update the calibration of the motor. If the rotor was
already at the home position, it will back up slightly then begin its two
revolutions.
If a Flying Start time value is given for the procedure, it will start during
the Pre-Purge time and end at the same time (see Flying Start).
At the end of the Pre-Purge time, the arc will initiate. At the bottom of
the monitor screen, the Voltage Bar Graph will show a bright yellow bar all
the way across the graph (this is the high voltage needed to start the arc).
The amount of current used in establishing the arc is set by Strike Current
parameter in the Pre-Purge Information Section.
Once the arc voltage and current feedback sense that the arc has been
initiated and is established, the weld procedure will start Level 1 (Up-slope).
In this Level current and rotor speed will initiate and start the welding
arc, commence rotation of the rotor and take the procedure to its
programmed welding parameters.
The actual welding portion of the procedure takes place between the last
Section B
(Cont.)