DUAL PULSE 125
STORED ENERGY RESISTANCE WELDING POWER SUPPLY
990-270 vii
Circuit Breaker(s) ....................................................................................................... A-1
Power ........................................................................................................................ A-1
Capacitor Bank........................................................................................................... A-2
Line Voltage Regulation ............................................................................................ A-2
Turndown Circuit ....................................................................................................... A-2
Line Failure Turndown .............................................................................................. A-2
Over-Voltage Lockout ............................................................................................... A-2
Charge Lockout Circuit .............................................................................................. A-2
Weld Fire Lockout ..................................................................................................... A-3
Output Pulse Characteristics ...................................................................................... A-3
Welding Speed ................................................................................................................. A-3
Dual Pulse Welding Speed......................................................................................... A-5
Power Cord ................................................................................................................ A-6
Firing Switch .............................................................................................................. A-6
Footswitch Connector ................................................................................................ A-6
Air Valve Driver ........................................................................................................ A-6
Cooling ....................................................................................................................... A-7
External Inputs Connector ......................................................................................... A-7
Physical Characteristics ................................................................................................... A-8
Index ...................................................................................................................................... Index-1
ILLUSTRATIONS
Figure Title Page
1-1 Dual Pulse 125 Front View .................................................................................. 1-1
1-2 Dual Pulse 125 Indicators and Displays .............................................................. 1-4
1-3 Rear Panel of the Dual Pulse 125 ........................................................................ 1-6
2-1 Typical Set-up diagram for the 125 DP showing both manually actuated and
Air Actuated Weld Head connections .................................................................. 2-1
2-2 Correct Terminal Connection .............................................................................. 2-2
2-3 Examples of Cable Routings ................................................................................ 2-3
2-4 Solenoid Air Valve Assembly for Thinline Model 80A ...................................... 2-4
2-5 Footswitch Weld Abort Jumper in the ON Position ............................................ 2-7
2-6 Location of terminals 1-4 on the Pulse Transformer ........................................... 2-7
2-7 Change jumper connections on the Pulse Transformer to select pulse width ...... 2-8
2-8 Remote Schedule Selection via BCD Coded Switches ........................................ 2-10
2-9 Remote Schedule Selection BCD Code ............................................................... 2-10