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DATE: January 13, 2005 BULLETIN NO: M_05_001
TITLE/ PRODUCT NAME: Arc Detector PCB Modifications
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:
Robotic Interface ------------ All Versions
Digimatic II -------------------- All Versions
Digipulse Automatic-------- All Versions
SERIAL NO:
All Serial Numbers
SUMMARY:
The arc detector PCB’s PN-31419 Rev. “C” and 675280 Rev. “E” have been updated to Rev
“D” and Rev. “F”, respectively. The changes were made to:
• Simplify manufacture by incorporate common components and circuitry.
• improve performance reliability by eliminating mechanical switches.
• eliminate calibration problems by removing the calibration pot on the PCB.
The individual PCB P/N’s remain the same as above but the installation of PN-675280 Rev. “D”
PCB for the Digimatic II and DigiPulse Automatic will require a change in position of the
“Coding Plug” to accept the new Revision “D” board. More details and installation instructions
are provided below.
BACKGROUND:
Recently, users have raised concerns about the calibration standard and hence the
performance consistency of these PCB’s. The latest design and component modifications will
fix these concerns.
Previously, there were two arc detector PCB designs available having different circuitry and
components; one for the Robotic Interface and one for the Digimatic II or DigiPulse Automatic
controls. Both PCB’s were designed for the execution of similar functions for mechanized
welding control applications. Both boards had also seen several revision changes over the
years. It was time to consolidate and simplify there functions.
The old and new PCB’s are shown below:
OLD Design PCB OLD Design PCB
Digimatic II & DigiPulseAutomatic Robotic Interface Arc Detect PCB
Arc Detect PCB PN- 31419
PN-675280
____________________________________________________________________________
The New Design PCB The New Design PCB
Same as PN-675280
except entire PCB is
populated with
components
Digimatic II & DigiPulse Automatic Robotic Interface Arc Detect PCB
Arc Detect PCB PN-31419 Rev. “F”
PN- 675280 Rev. “D”
Digimatic II & DigiPulse Automatic Robotic Interface Arc Detect PCB
Arc Detect PCB PN-31419 Rev. “F”
PN- 675280 Rev. “D”
COMPONENTS NOT INSTALLED ARE
INDICATED BY X.
OPERATIONAL IMPACT:
None
ACTION:
Robotic Interface Arc Detect PCB
Replacement of the Robotic Interface Arc Detect PCB PN-31420 Rev. “F” is a simple remove
and replace which requires no additional steps.
Digimatic II /DigiPulse Automatic Arc Detect PCB
Replacement of the Digimatic II /DigiPulse Arc Detect PCB PN-675280 Rev. “D” requires the
“Key Plug” to be moved from position 11 to position 14 for proper installation of the new
Revision “D” PCB. See Below:
New Revision “D” PCB
Key Plug in wrong position
To move “Key Plug” :
1. Gently pry up and remove plug (white) from card socket position 11
2. Move left to position 14 and press firmly in card socket. See Below.
3. Install Arc Detect PCB.
Position 14
Position 11
Move Key Plug
CONTACT:
ESAB Welding & Cutting Products
Product & Service Information Group
843-664-4416 Phone
843-664-5539 FAX
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