ESAB 100i Service Manual page 76

iSERIES 100 /200 /300 /400
2nd INVERTER SECTION
1st INVERTER SECTION
Art # 12301
The AC Suppression PCB has capacitors and other transient suppression components to protect the system from
transients on the AC lines. It also provides power for the neon AC present indicators which illuminate when AC
power is connected even when the ON-OFF switch, CB1, is off.
Status codes.
The codes for the power supply are displayed on the Display PCB 4 digit numerical display. Some codes refer to
the Gas Controls but more detailed Gas Control codes will be found on the individual gas controls. The gas con-
trols used with the XT family of plasma supplies have not changed. They have their own set of status codes which
should be covered in another section. This guide assumes you have first considered the Status Code Tables in the
Operation Section of the unit manual. Individual codes will point to different inverter sections while this guide
groups similar codes together. For example code E (or L) 249 indicates an inverter fault in Inverter 2A. This guide
covers codes 247-252 in one section as they are all the same, varying only by which inverter and section they refer to.
The codes are separated into 7 groups.
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
For the XT units we are using a 3 digit code with group 1 codes in the 100's, group 2 in the 200s etc. These cor-
respond to the older codes used in previous units, where 1-1 is now 101. For the most part the codes have the
same meaning. Where an older code no longer applies to the XT system we don't use it over again and have left it
reserved to avoid confusion. For example the code 204 (2-4) which meant the inverter module wasn't ready. We
now detect that error in a different way that has a somewhat different meaning so we have reserved the 204 Code.
While most of the codes indicate a fault has occurred, a few of them, such as 304 (formerly 3-4), simply refer to
the current status. 304 indicates either "priming" where the pump is filling the system with coolant or more often
"purging" where the gas is flowing to dry the consumables after replacing them or purging the gas lines when a
different gas type has been selected.
A-56
(INV 1 B)
(INV 1 A)
Plasma Process -- Relating to pilot, transfer, torch voltages, etc.
Plasma Power Supply -- Primarily the Inverter Sections
Interface to Gas controls -- Mainly the Automatic Gas Control
Cooling System -- The liquid cooling system for the torch and inverters
CCM -- Communications port to the gas controls
CCM -- Status
APPENDIX
PILOT SW (IGBT)
(+)
TIP
(+)
WORK
Manual 0560956456