- 13 -
PATON VDI SERIES ECO DC MMA
No welding currents.
The power is switched on;
the green indicator lights.
Welding cables are not
connected.
Check the state of electric
connectors.
The earthing terminal is not
properly connected or is not
connected to the workpiece.
Properly connect the earthing
terminal to the workpiece.
No welding currents.
The power is switched on;
the yellow indicator lights.
Triggering one of the
temperature sensors
Wait when the machine to cool
down; then it will
automatically switch on again
Insufficient supply of cooling air To ensure sufficient ventilation
Faulty thermal sensor
Contact your Service Centre
Improper arc starting in the
manual consumable-
electrode arc welding; the
green indicator flashes.
The power supply voltage is
close to the minimum allowable
voltage of 165 V.
If it is not possible to increase
the cross-section of the
conductors of the power cable,
decrease the set welding
current to the value which is
sufficient for arc staring.
Select the welding electrode
with consideration for the
welding current.
Random arc extinction
during welding
The arc voltage is too high for
the electrode used.
Use another electrode or a
welding unit rated at higher
power.
The electrode sticks to the
workpiece
The welding current is too low.
Set the proper welding current.
Low quality of the weld
(metal scattering)
The polarity of voltage across
the electrode is improper.
Change the polarity across the
electrode according to the
instructions of the electrode
manufacturer.
11. SAFETY INSTRUCTIONS
GENERAL INFORMATION
This device may only be used for the purposes for which it was created. This appliance is intended for
use by persons with the requisite qualifications. It is the responsibility of the qualified personnel to
install, service and repair. Please read this manual carefully before installing and using this product.
Failure to follow the instructions in this manual may result in serious personal injury, death and
damage to the unit itself. Incorrect installation, maintenance and operation resulting in damage to the
device - the manufacturer is not liable.
