ESAB Universal Plasma Control Board Fault Light Troubleshooting instruction

ESAB
Brand
ESAB
Model
Universal Plasma Control Board Fault Light
Type
Troubleshooting instruction
www.esabna .com
DATE: February 6, 2004 BULLETIN NO: P_04_002
TITLE/ PRODUCT NAME: Universal Plasma Control Board Fault Light
RATING:
_ _ DIRECTIVE _ _ ALERT
(Action is Required) (Potential Problem)
_
X_ INFORMATION _X_ PRODUCT IMPROVEMENT
(Action is Optional) (Enhanced Product)
_
X_ General Distribution _ _ Business Confidential
(Unrestricted) (Restricted Distribution)
PRODUCT SERIES/ MODEL:
PCM-500i PowerCut 650
PCM-875 PowerCut 875
PowerCut 1125
SERIAL NO:
Universal control Board PN-38214 Revision “F” only
SUMMARY:
A SOLID fault lamp indication will occur if the air supply is OFF or NOT connected to the power
source when power is applied AND the torch switch is activated
OPERATIONAL IMPACT:
None
ACTION:
None Required
DESCRIPTION:
A SOLID (always ON) fault lamp fault condition indicates that a OVER CURRENT fault has occurred
in the Power Source.
To further improve the safety features of these plasma systems, a Rev F change to the software
implements the detection of a closed torch trigger switch at Power Up which also displays a SOLID
fault lamp and disables the power source.
A SOLID fault lamp indication will also occur if the air supply is OFF or NOT connected to the power source
when power is applied AND the torch switch is activated. This contradicts the SOLID ON light description or
an Internal Fault (component failure or over current condition) shown of the “Fault Light Indicator Chart”
below . An insufficient or lack of air flow fault is usually indicated by a “Flashing” light. This is still true if air
is lost during cutting. It is only at Power Up that lack of air flow will produce a SOLID ON fault light.
This software bug is being corrected and the flashing light will be reinstated for all air flow issues on
Revision “G” of PN-38214.
For proper operation of the power source INSURE that the AIR supply IS CONNECTED to the power source
and the pressure gage is reading a proper pressure before applying power to the power source. This will
insure proper operation of the Flow Fault detection circuitry.
CONTACT:
ESAB Welding & Cutting Products
Product & Service Information Group
843-664-4416 Phone
843-664-5539 FAX
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ESAB Universal Plasma Control Board Fault Light Troubleshooting instruction

ESAB
Brand
ESAB
Model
Universal Plasma Control Board Fault Light
Type
Troubleshooting instruction
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