THE ART OF WELDING
P6
PN-0509076 Rev. 16 67-92
Problem (Consequence) Possible causes What to do
Overheating
(Stop immediately)
Air circulation blocked
Respect a minimal distance between
the openings and any surface (§
4.2.2), let the source cool down
Power source capacity exceeded Modify conditions of use
Fan failure
Must be checked and, if necessary,
replaced by a qualifi ed electrician
Source control
(Stop immediately)
Mains supply voltage too low Correct or modify the connection
Polygaine defect (MU welding heads) Replace
Power source badly adjusted Contact Polysoude After Sales Service
Current source defect Contact Polysoude After Sales Service
Rotation or wire feed control
(Stop or imposed downslope)
Sticky mechanics of the head or the
wire feed unit
Clean
Check for foreign bodies inside the
head or wire feed unit
Overcurrent rotation or wire feed
(Stop immediately)
Sticky mechanics of the head or the
wire feed unit
Clean
Check for foreign bodies inside the
head or wire feed unit
Power source converter card
0028019100 defect
Replace
Rotation or wire feed pulse sen-
sor
(Stop immediately)
Wire feed unit or head sensor dam-
aged
Replace
Connection cable with the power
source damaged
Must be checked and, if necessary,
replaced by a qualifi ed electrician
Power source converter card
0028019100 defect
Replace
Manual downslope
(Imposed downslope)
The power source is not connected to
the earth
Correct
Remote control defect Check
Cable shielding of the remote control
damaged
Replace the cable
Remote control card 0028049100
defect
Replace
Manual stop
(Stop immediately)
Remote control defect Replace
Remote control card 0028049100
defect
Replace
End stop fault on oscillation/ Arc
height or touched part fault.
(Stop immediately)
Surface of the workpiece in poor con-
dition.
Improve the surface if it is possible
Connections on the +/- plugs are
wrong and arc voltage measurement on
the power source U
arc
is wrong too.
Connect properly and check
Voltage between workpiece and elec-
trode less than 0.3 V when not welding
Check whether the voltage between
electrode and workpiece is higher
than 0.3 V when not welding. If not,
contact Polysoude After Sales Serv-
ice.
37 pin front connector (arc height/os-
cillation) not connected or cable dam-
aged (item FA 27 in § 4.4.1.).
Correct modify connections or change
the cable if it is damaged.
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