Calibration - Lincoln Electric Power MIG 360MP Operator's Manual

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POWER MIG 360MP
Current Calibration
1. Access the Current Calibration mode from the Configuration
menu.
2. Connect work and output leads to a grid load. Set grid load
to approximately 80-120 mΩ. (Grid load should produce
20-30 V when supplied with 250 A.)
3. Connect a certified calibrated current probe or current meter
and shunt to the output circuit.
4. Select Adjust to calibrate the machine.
5. Adjust the right selector knob until the current probe or
current meter reads 250 Amps.
6. Press the right selector knob to save the calibration settings.
7. To revert to the factory calibration settings, access the
Current Calibration mode from the Configuration menu and
select Factory.
Voltage Calibration
1. Access the Voltage Calibration mode from the
Configuration menu.
2. Connect work and output leads to a grid load. Set grid load
to approximately 80-120 mΩ. (Grid load should produce
20-30 V when supplied with 250 A.)
3. Connect a certified calibrated voltmeter to the output
circuit.
4. Select Adjust to calibrate the machine.
5. Adjust the right selector knob until the voltage meter reads
20 Volts.
6. Press the right selector knob to save the calibration
settings.
7. To revert to the factory calibration settings, access the
Voltage Calibration mode from the Configuration menu
and select Factory.
Spool/Push-Pull Gun Calibration
Checking Calibration
A variety of factors affect the calibration of the Spool and Push-Pull
Gun. Therefore, it is important to check the gun's calibration
whenever the machine's input voltage is changed, or a new gun is
connected to the machine. Follow the steps below to calibrate the
gun:
1. Turn off all weld settings in the weld mode (pre/post flow,
run-in, start/spot/crater time, and burn back).
2. Adjust wire feed speed to 360 (360 inches per minute = 60
inches in 10 sec).
3. Disengage the rear drive motor (By opening the tension lever).
4. Disconnect the gun from the gun receiver bushing and cut the
wire at the front of the machine (Wire should run through the
conduit only).
5. Make sure the gun and cable assembly are
straight.
6. Using a stop watch, pull the trigger for 10 seconds.
7. Measure the wire from the tip of the torch to the end of the wire.
8. The wire should measure just under 60 inches.
9. Perform the gun calibration if the measurement is less than 57
or greater than 63.
Calibrating Spool Gun
1. To calibrate the spool gun, select Spool Gun from the Weld
Process selection screen.
2. Select the appropriate gun from the list of spool gun options.
3. Select Manual calibration.
4. Adjust the offset to calibrate the spool gun. (Increase the
offset if the wire measured in the Checking Calibration steps
was too short. Decrease if it was too long.)
5. Press the right selector knob to select an offset.
6. Repeat the Checking Calibration steps above to confirm
calibration. If wire measurement still deviates more than 3
inches, repeat calibration steps using different offset.
PRO AL, Magnum® PRO Pistol and Magnum® PRO Cougar
1. To calibrate the push-pull gun, select Push-Pull from the
Weld Process selection screen.
2. Select the appropriate gun from the list of Push-Pull gun
options.
3. Select either Auto Calibration or Manual calibration.
Auto Calibration: This procedure provides an automatic means to
synchronize the speeds of the rear push motor and front pull motor.
Before running the auto calibration procedure, make sure the
machine and the gun cable are set up and ready for welding. Pull
the gun trigger and hold it closed throughout the procedure. Wire
will feed out of the gun while the calibration is being performed,
however the welding output will NOT be energized. Wire will stop
feeding when the calibration is complete. Auto calibration should
be performed whenever the wire or gun is changed.
Manual Calibration: this procedure allows a direct adjustment on
the pull motor speed by Offset value. The default is 90. A wire
nesting or tangling issue can be resolved by increasing this value,
and a wire slipping or shaving issue can be resolved by decreasing
this value.
When using the machine with Custom push-pull guns, only manual
calibration is available. This operation is described in the previous
section.
D-3
MAINTENANCE
When using machine with: Magnum®