ESAB POWERCUT-1250, Installation, Operation And Service Manual

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figure 3-1B. PowerCut-1250 / 1500 Controls
D. Output Current Control. Adjustable from 20 to 70 amperes on Powercut-1250. Adjustable
from 20 to 90 amperes on Powercut-1500.
E. Power "ON" Indicator: Illuminates whenever the front panel power switch is in the ON
position.
f. AC Line Indicator or High/Low Line Voltage Indicator: This fault light will blink when
the input voltage is outside the “+ or -” 15% range of the input rating.
G. Gas flow Indicator: This fault light will blink when the air flow supply is low or has no back
pressure.
H. fault Indicator: When this light blinks, either the system failed to initiate a pilot arc after
a number of attempts, or there has been an over-current event within the system. If the
light blinks for 10 seconds and then stops, the problem is pilot arc initiation. Check the
consumables in the torch.
If the light continues to blink, and the system does not reset, the fault is an over-current
event. See troubleshooting section.
I. Over Temperature Indicator: This fault light will blink to indicate that the duty cycle has
been exceeded. Allow the power source to cool down before returning to operation.
All fault signals will remain on for a minimum of 10 seconds. If fault clears, all will
reset automatically except for over-current. To clear over-current, the power must be
shut off for 5 seconds and then turned back on.
E H F G I
SECTION 3 OPErATION