Unitek Peco PHASEMASTER 6 - Operating the Phasemaster 6 Control; Power Up and State Selection; Weld Schedule Management

PHASEMASTER™ 6 DIRECT ENERGY WELDING CONTROL
990-083 vii
CHAPTER 3: OPERATING INSTRUCTIONS................................................................. 3-1
Section I. Operation.......................................................................................................... 3-1
Power Up.............................................................................................................. 3-1
Select Run or Program State .................................................................................. 3-1
Select Schedule...................................................................................................... 3-1
Change Schedule Parameters ................................................................................. 3-1
Change Parameters for Schedules 1 through 7 ........................................................ 3-3
Copying Information in Schedule 0 to Another Schedule ......................................... 3-4
Alarms ........................................................................................................................ 3-4
SCR Alarm A1 ...................................................................................................... 3-4
Machine Alarm A2................................................................................................. 3-4
Machine Alarm A3................................................................................................. 3-5
Machine Alarm A4................................................................................................. 3-5
Machine Alarm A5................................................................................................. 3-5
Section II. Programmable Options..................................................................................... 3-5
Status Display.............................................................................................................. 3-5
Schedule Protection Feature......................................................................................... 3-6
Line Voltage Compensation Feature............................................................................. 3-6
Line Voltage Compensation Feature On................................................................. 3-7
Line Voltage Compensation Feature Off................................................................. 3-7
Alarm Display.............................................................................................................. 3-7
Change Schedule Protection......................................................................................... 3-8
Schedule Protection Feature On............................................................................. 3-8
Schedule Protection Feature Off............................................................................. 3-8
Section III. Adjusting Weld Heads .................................................................................... 3-9
Adjusting Air Actuated Weld Heads............................................................................. 3-9
Section IV. Developing Weld Schedules............................................................................ 3-11
Resistance Welding Parameters.................................................................................... 3-11
Weld Schedule Development........................................................................................ 3-11
Weld Head Parameters.......................................................................................... 3-12
Welding Transformer Parameters............................................................................ 3-13
PM6 Control Parameters ....................................................................................... 3-14
Making a Weld ............................................................................................................ 3-14
Evaluating the Weld...................................................................................................... 3-15
Weak Weld ........................................................................................................... 3-15
Electrode Sticking.................................................................................................. 3-15
Electrode Force and %CURRENT........................................................................ 3-16
Causes of Imperfect Welds .......................................................................................... 3-16
Polarity.................................................................................................................. 3-16
Output Voltage vs Weld Quality............................................................................. 3-17
Weld Strength Profiles.................................................................................................. 3-19
Destructive Testing....................................................................................................... 3-19