THE ART OF WELDING
P6
68-92 PN-0509076 Rev. 16
Problem (Consequence) Possible causes What to do
Fault of arc height regulation
(Stop immediately)
Poor synchronisation between pulses
of current, voltage, arc voltage, rota-
tion, wire and oscillation.
Check or correct programming
Pulses too short for servo control to
arc voltage.
Correct the values of parameters in
the welding program.
Insuffi cient sensitivity.
Check and correct the values of pa-
rameters in the welding program
Connection of Uarc measurements
defective.
Correct or modify connections or re-
place cable if damaged.
Start position
(Stop immediately)
Closed chamber welding heads of the
type MW or H
The welding head is not in the open •
position
Head open detector switch is badly •
adjusted or defective
Modify the start position of the weld-
ing head
Check
Other welding heads
Terminals D and E are not connected
together at the head rotation cable
connector.
Correct
In all cases
Power source converter card
0028019100 defect
Change
Printer
(No printing)
Lack of paper or printer defect
Load or replace
Data backup
(No backup)
The USB fl ash drive has been removed
before the end of the backup
Start the backup operation again
No recording Refer to programming
USB key empty
(No loading)
No programs stored on the USB key Take a USB key with stored programs
Reading or writing
(No recording or loading)
Reading or writing error of the USB
key
Change the USB key
The USB key has been removed before
the end of program backup
Start the backup operation again
USB key full
(No recording)
The USB key is full Erase a WP or take another USB key
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