Tweco 6045 Excel Arc - Manual (Page 28)

EXCEL ARC 6045 OPERATION
Manual 0-5213 4-2 August 26, 2011
2. ARC FORCE CONTROL POTENTIOMETER (R2)
(SMAW/CAG)
To prevent electrode "sticking" this potentiometer
controls the short circuit welding current to produce
an increase in current as the arc length is shortened.
Arc Force Current is continuously adjustable from 0 -
350 amps.
3. REMOTE OUTPUT CONTACTOR
Remote output control. NOTE: Welding will not
start in GTAW mode without a Remote OUTPUT ON
(CONTACTOR ON) signal.
4. FUSE (F1)
1/4A 250V fuse protecting the 24 volt auxiliary
transformer.
8A 20A 20A
8A 8A
19P
Art# A-10894
Figure 4-2: Fuse Location
5. CIRCUIT BREAKER (CB4) 8A - For 42VAC to J1.
6. 2 CIRCUIT BREAKERS (CB3) 20A - For 115VAC to J1.
7. CIRCUIT BREAKER (CB4) 8A - For 42VAC to J1.
8. CIRCUIT BREAKER (CB5) 8A - For 24VAC to J1.
9. FEEDER / REMOTE INTERFACE CONNECTOR (J1).
19 Pin amphenol connector - for interface with Wire
Feeder, remote control devices and controllers.
10. VOLTAGE LED DISPLAY
Three digit display for preview voltage prior to enabling
the output and actual output voltage when it is enabled.
Display will "HOLD" actual output voltage when the arc
was stopped for approximately. 20 seconds and then
will revert to preview setting.
11. VOLTAGE / CURRENT CONTROL POTENTIOMETER
(R1)
Adjusts the output voltage (CV modes) or output
current (CC modes). This potentiometer will set the
maximum limit when REMOTE control is selected.
12. CURRENT LED DISPLAY
Three digit display for preview current prior to enabling
the output and actual output current when it is enabled.
Display will "HOLD" actual output current when the arc
was stopped for approximately. 20 seconds and then
will revert to preview setting.
13. HOUR METER (OPTIONAL)
Displays the unit arc hours.
14. OVER-TEMPERATURE LED INDICATOR (YELLOW)
Yellow Over-temperature LED indicates that the
unit is overheated and that the unit output has
been disabled. If the transformer is overheated, the
power is disconnected.
15. FAULT LED INDICATOR (RED)
Red Fault LED indicates a fault from the J1 Connector.
If any of the supply voltages (24VAC, 42VAC, 115VAC)
are shorted to any of the signal wires connected to the
J1 connector, this indicator will turn ON.
16. ON/OFF INDICATOR LED (GREEN)
Green ON/OFF LED indicates when the ON/OFF SWITCH
(SW1) is set in the ON position; Control circuits are
active.
17. ON/OFF SWITCH (SW1)
Turns the control circuitry ON/OFF. In the OFF position,
the high power circuits and output terminals are
disabled.
18. OUTPUT ON LED
Green LED indicates that an OUTPUT ENABLE (START)
signal is present.
NOTE
This will come ON immediately when either
STICK (CC) or VS MIG (GMAW or FCAW)
modes are selected.
19. LOCAL / REMOTE SWITCH (SW4)
Switches between front panel or remote voltage/
amperage control.