GALAGAR GPS 3000 C, Техническое руководство по эксплуатации

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GPS 3000/4000 C 25
5. ANOMALIES. PROBABLE CAUSES. POSSIBLE SOLUTIONS.
SYMPTOM. ANOMALY. PROBABLE CAUSE. POSSIBLE SOLUTION.
GENERAL PROBLEM.
NOTHING WORKS.
1. Make sure there is voltage at the entry to the machine;
if not the intake must be changed. It is advisable to see if
any magnetothermal has "blown".
The machine has no voltage in one or all its
vital elements. 2. Check the power source fuses situated on the central
panel. (See Spare parts Sheet)
3. The machine panels must be removed testing the
logical points of the electrical diagram.
LIMITER TRIPS
Magnetothermal switch has low gauge for
the case. There may be a short circuit, which
is what causes the limiter to trip.
Change the magnetothermal for another larger gauge
one. It is important for the magnetothermal switch to
have a characteristic slow type curve. In the event that the
electrical installation has limited power, the welding work
must be tested at lower current levels.
IT CAUSES NOISE
Loose metal casing. Review and screw casing.
Defective electrical connections. Correctly tighten the connections.
Damaged or poorly attached fan. Examine the fan.
IF THE GREEN INDICATOR
LD1 IS ON THE APPLIANCE
DOES NOT WELD
Active protection system. Amber light “LD2”
on.
Equipment overheated, wait until the equipment cools
down.
Supply voltage outside rated margin. Change supply tap.
THE ELECTRODE BURNS IN
TIG WELDING
Excessive welding intensity for a certain
electrode. Decrease welding current or change electrode for one
with larger diameter.
Use of reverse polarity. Place electrode to negative pole.
Type of electrode Change the electrode type.
Lack of protection gas. Regulate at an appropriate flow.
THE EQUIPMENT HEATS UP
ABNORMALLY.
THE THERMAL PROTECTION
ACTIVATES QUICKLY.
The equipment is positioned so that it pre-
vents correct ventilation. Place the equipment in an area where the air is constant-
ly replaced.
The fan does not work. Replace the fan.
The equipment is located in a very hot
environment. Avoid positioning where there is direct exposure to the
sun.
There is a loose connection inside the
equipment. Review the power electrical connections.
ALTHOUGH THE MACHINE
IS CONNECTED AND WITH
THE SWITCH LD1 ON,
THERE IS NO REACTION
WHEN PRESSED
Failure of the pistol switch which does not
make perfect contact.
Change the gun microswitch.
WHEN THE SHIELDING GAS
IS RELEASED IT CONTINUES
FLOWING.
There is impurity in the inside chamber of
the solenoid valve which prevents the piston
from closing completely.
Dismantle and clean the electrovalve.
The configurated value of post-flow is very
high. Change in the settings menu the post-flow time value
TPS.
WHEN FINISHING
WELDING THE WIRE
REMAINS STUCK TO THE
TORCH CONTACT TUBE.
The configurated value of burn-back is very
high. Change in the settings menu the value of the burn-back
time correction.
WHEN FINISHING
WELDING THE FINAL WIRE
LENGTH IS VERY GREAT.
The configurated value of burn-back is too
low. Change in the settings menu the value of the burn-back
time correction.
The torch is withdrawn immediately when
torch pushbutton is no longer pressed.
The final wire length control system requires the welding
torch not to be immediately withdrawn when the torch
pushbutton is no longer pressed.
THE EQUIPMENT DOES NOT
WELD CORRECTLY IN
MIG/MAG MODE.
"IT ADJUSTS BADLY"
Low effective welding voltage. Output wave
not correct.
Check that there is not a phase failure in the supply
power.
Check that the electrical contact elements of the welding
circuit are correct: Welding mass, rusty or very dirty
surfaces, contact nozzle with greater diameter than the
wire, etc.
Test the electrical diagram of the power source.
Input and output voltages to the rectifier.
The diameter of used wire does not match to
selected program. Verify the use of the appropriate diameter and replace
the erroneous one.
The welding wire has a mechanical re-
sistance at the outlet, which prevents it from
having a regular speed.
Examine the welding gun. Blow the inside (cable) with
compressed air.
Selection of wrong synergic program.
Verify the program selection criteria : filler material, gas
mixture and wire diameter.
Consumable badly fit or in bad condition. Review the consumable adjustment and replace if faulty.
Unsuitable pressure of tightening knob in
draving operation.
Adjust the pressure until the problem disappears.