Polysoude P6 HW - Page 74

THE ART OF WELDING
P6 HW
74-100 PN-0110008 Rev. 12
Problem (Consequence) Possible causes What to do
End stop fault on oscillation/ Arc
height or touched part fault.
(Immediate stop)
Surface of the workpiece in poor
condition.
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.
Check and reconnect if necessary.
Absence of workpiece voltage greater
than 0.3V off cycle between elec-
trode and part to be welded.
Check whether the voltage be-
tween electrode and workpiece is
higher than 0.3 V. If not, contact
Polysoude After Sales Service.
37 pin front connector (arc height/
oscillation) not connected or cable
damaged (item FA 27 in § 4.4.1.).
Correct or modify connections or
replace cable if damaged.
Fault of arc height regulation
(Immediate stop)
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
parameters in the welding pro-
gram
Connection of U
arc
measurements
defective.
Correct or modify connections or
replace cable if damaged.
Start Position
(Immediate stop)
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 •
welding head.
Check and correct or replace.•
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 defective.
Replace.
Printer
(No printing)
Lack of paper or printer defect. Replace.
No recording. See programming.
Data backup
(No record)
The USB key has been removed be-
fore the end of the backup.
Start the backup operation again.
USB key empty
(No loading)
No programs stored on the USB key.
Use a USB key with stored pro-
grams.
Reading or writing
(No record or load)
Reading or writing error of the USB
key.
Change the USB key.
The USB key has been removed be-
fore the end of program backup.
Repeat the read or write opera-
tion.
USB key full
(No record)
The USB key is full.
Erase a WP or take another USB
key.