Malfunctioning Causes - Sherman digitec DIGIMIG 2OO PULSE User Manual

The diameter of the electrode wire
0.8
1.0
1.2
1.6

12. malfunctioning CAUSES

symptoms
No power, signal failure or faulty
operation of the unit
No feed of the electrode wire (feeder
motor is running)
Irregular wire feed electrode
Not to bow strikes
Arc too long and irregular
Arc too short
After power displays and LEDs are not lit.
The fan is not working
Unsatisfactory quality of the weld in MIG
Unsatisfactory quality of the weld MMA
electrode sticks to the work piece
Unsatisfactory quality of the weld TIG welding
List of errors signaled on the display Error code List of errors signaled on the display Error code
Protection against overheating. Wait a few minutes until it will cool down to a temperature enabling it again automatically activated. There should at
that time interrupt the power supply, since the continuously operating fan cools the heat sinks inside the unit to more quickly reduce the
Overtemp temperature. After restarting, be sure to limit the welding parameters for further continuous operation.
The diameter of the contact tip
Cause
No connection or loose plug inside the device
Weak pressure rollers
Not the diameter of the groove of the guide
roller
Contaminated guide wire holder Clean the guide wire electrode Locked wire electrode at the end of the current Contaminated guide wire holder Clean the guide wire electrode Locked wire electrode at the end of the current
Current damaged tip
The groove the feeding roller is dirty or
damaged
Spool with wire rubs against the walls of the lid welder
Lack of proper contact wire clamp mass
Faulty switch in the handle MIG
Improper connection to the unit MIG
Welding voltage too high
Wire feed speed too low
Welding voltage too low
Wire feed speed too high
No power supply
The fan was blocked folded cover
Inadequate or poor quality materials or
consumables,
Shielding gas flows from the wrong intensity.
Wrong polarity of welding cables
Humid electrode.
Welder is supplied from the generator or by a long
extension cord diameter is too small cable
Check the quality of the materials and parts supplies,
especially tungsten electrode and a shielding gas
The shielding gas does not flow or flows of
insufficient intensity
24
0.8
1.0
1.2
1.6
Check and correct connection of all electrical plugs
inside the device
Set the correct pressure
Wear an appropriate guide roll
Replace contact tip
Replace contact tip
Clean the roll groove or replace the roll
Attach the wire spool correctly
To improve mass contact terminal
replace switch
Check the condition of the electrical connections of the
handle, check that the pins in the socket are not broken
or jam
Reduce the welding voltage
Increase the speed of wire feed
Increase welding voltage
Reduce the wire feed speed
Check the fuses on the network connection
Straighten fan cover
Replace consumables. Change the welding wire or the
gas cylinder for materials suitable or higher quality
Check the gas hose, improve the connection hose with
fittings and quick status check reducer Cylinder
Connect the correct welding wires
replace electrode
Connect directly to the mains
Replace consumable parts, replace the shielding gas
for higher quality
Check Cylinder regulator, gas hose, improve the
connection hose with quick connectors, and status
Description
The contribution of lead wire
Blue
Blue / Red
Red
Yellow
Procedure