Tweco Weld Sequencer User Manual

Page 61

Manual 0-2023

APPENDIX

APPENDIX VII: TIMING AND SEQUENCE OF OPERATION

FOR GS1 GAS SLOPE ONLY

A-02437

• Power Supply to ON

• Welding Console in RUN position

• Coolant Recirculator to ON

• Gases on

• Torch positioned

• Weld Sequencer Enclosure to ON

• GS1 to ON

• GS1 to MANUAL

• RP1 Control CONTACTOR to ON

• Welding Arc transfers

• Gas at MIN flow

• RP1 START SEQUENCE pressed

• GS1 UPSLOPE starts

• MAX plasma gas flow is reached

E and E

• RP1 DOWNSLOPE pressed

If GS1 DOWNSLOPE DELAY is set at 0
downslope of gas starts

If not set at 0, downslope starts X seconds later
at E

G and G

• Gas flow reaches MIN flow level

H and H

• RP1 CONTACTOR to OFF

• Welding Arc extinguishes

I and I

• Weld Sequencer Enclosure to OFF

• Welding Console to OFF

• Power Supply to OFF

• Coolant recirculator to OFF

• Gases shut off