Lincoln Electric SVM135-B Constant Voltage CV/MIG and CV/Flux Cored Procedures, Descriptions

C-10 ACCESSORIES C-10

Return to Section TOC

Return to Section TOC

Return to Section TOC

Return to Section TOC

Return to Master TOC

Return to Master TOC

Return to Master TOC

Return to Master TOC

Constant Voltage (CV/MIG and CV/Flux Cored) Procedures

When in this mode, the ARC CONTROL adjusts the inductance. (This adjustment is often referred to as “pinch”. Inductance is inversely proportional to pinch.) Increasing the ARC CONTROL setting decreases the inductance, which results in the arc getting colder and pinched tighter. Decreasing the ARC CONTROL setting increases the inductance, which results in the arc getting wider (reduced pinch).

Installation is as follows:

1.Turn off power.

2.Remove the two screws from the front of the blank option panel at the location you choose to install your new option (bottom) of the Control Box cabinet. Save the screws, discard the old panel or save for future use.

3.Tilt the new option panel away from the front opening of the Control Box cabinet. Plug the electrical connector into the proper connector on the right side of the main printed circuit board (12 pin). Make sure the connector latches in place.

4.Position the new panel, taking care not to dam- age the connections on the back.

5.Align the screw holes, replace the two screws and tighten.

K1542-7 MX PANEL (LARGE PANEL)

The MX Panel provides a selection of four power source modes. In addition, it provides for the adjust- ment of the following parameters: PREFLOW, RUN IN, ARC CONTROL, BURNBACK, POSTFLOW, and SPOT time.

Descriptions

Indicator Lights - Extra bright red LED’s indicate the mode and active parameter being displayed.

Display - Displays the value or status of the active parameter.

Available Modes - CV/MIG

CV/ FLUX CORED

CC/STICK CRISP

CC/STICK SOFT

Due to the nature of the system, the following feature is required for safety reasons. Upon entering any constant current (CC) mode, the right encoder, labeled VOLTS, TRIM, on the Display/Control Panel acts as a “soft” contactor switch. The encoder knob must be turned CW at least 45° to activate the output (turning CCW 45° deactivates the output). This pre- vents the output from inadvertently becoming “hot” when scrolling through the weld modes. The excep- tion to this rule is when the weld mode is entered by a change in procedure (using a memory panel such as the K1542-9 Memory/Dual Procedure panel). In this case, the state of the contactor is recalled as it was left when the procedure was exited.

In the CC modes, the output current is set by the AMPS control, and the VOLTS/TRIM adjustment has no effect in this mode. In this mode, the ARC CONTROL adjusts the arc force. Increasing the ARC CONTROL setting increases the arc force, making the arc more harsh but less likely to stick. Decreasing the ARC CONTROL setting decreases the arc force, making the arc softer and smoother.

Parameter Ranges

PREFLOW -

0.0to 2.5 seconds (0.1 sec. increments).

RUN IN -

Low Range: 50 to 150 IPM (1.25 to 3.80 MPM).

High Range: 75 to 150 IPM (2.00 to 3.80 MPM).

ARC CONTROL -

Trim (-10.0) to (+10.0) , (0) is nominal.

BURNBACK -

0.0to 0.25 sec. (0.01 sec. increments).

POSTFLOW -

0.0to 2.5 sec. (0.1 sec. increments). SPOT -

0 to 25 sec. (0.1 sec. increments).

POWER WAVE 455/POWER FEED 10