Lincoln Electric SVM135-B service manual Operation with Previous Software Version

C-16 ACCESSORIES C-16

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CONTROL BOX -- SETTING OPERATING LIMITS

Upper and lower operating limits can be set for the WFS/Amps setting and the Volts/Trim setting. Doing so requires knowledge of how to set the limits, and access to the PC board in the Control Box.

There are two independent sets of limits, Procedure A limits and Procedure B limits. If a DP/M door option is installed, the A and B limits must be set independently. If there is no DP/M door option, the Control Box defaults to Procedure A, and only Procedure A limits can be set.

With system power on, select the weld mode for which you want to set limits. If a Dual Procedure option is installed, select the procedure A. Turn the system power off. Remove the two screws holding the Control/Display panel to the Control Box, but do not unplug it. Tilt the panel down to allow access to DIP switches S1-1, S2-6 and S2-7. (See “Setting DIP Switches in the Control Box” section.) Do not allow the panel to hang by the wiring harness.

Determine if the Wire Drive is set up for low or high speed. If low speed, S1-1 should be off. If high speed, set S1-1 to on.

To adjust the lower limit, set S2-6 to on. Turn the power on and adjust the WFS/Amps and Volts/Trim knobs to the desired lower limits. Note: You will not be able to adjust the lower limit outside of the mini- mum and maximum wire feed speed of the Wire Drive, nor above the upper limit. Turn the system power off. Return S2-6 to off.

To adjust the upper limit, set S2-7 to on. Turn the power on and adjust the WFS/Amps and Volts/Trim knobs to the desired upper limits. Note: You will not be able to adjust the upper limit outside of the mini- mum and maximum wire feed speed of the Wire Drive, nor below the lower limit. Turn the system power off. Return S2-7 to off.

If a Dual Procedure panel is installed, repeat the above procedure with the Procedure B selected. When done, attach the Control/Display panel to the Control Box. The machine is now ready for normal operation with the new limits.

CONTROL BOX -- USING OPERATING LIMITS

Once set, limits apply to all weld modes. Limiting Procedure A to 200 to 300 inches per minute, for example, limits the ability of the operator to adjust his WFS in pulse, CV and FCAW weld modes. Limiting the Volts to 23.0 to 24.5 would limit the ability of the

operator to adjust his Volts in synergic and non-syn- ergic CV modes. Procedure B could be set up with different limits. Limits are absolute -- they will over- ride values stored in the memories. Note that limits do not apply to set up parameters, such a Preflow and Arc Control.

OPERATION WITH PREVIOUS SOFTWARE VERSION

The operation of the previous Control Box software version (S24004-2) is different than described earlier in this section. The differences are as follows:

•The Memory/Dual Procedure panel is not a valid option.

•The MX (K1542-1) and MSP (K1542-8) are are used in place of the MX2 and MSP2 options.

•Limits cannot be set.

The key difference in the MX/MSP panels, compared to the MX2/MSP2 panels, is the Spot function. In the old software, a 0.1 to 2.5 second Spot function was available on these two panels. No Crater function was available (Crater replaced Spot in the graphics on these two panels).

An upgrade kit is available to change the software from S24004-2 to the latest version of Control Box software. Once the upgrade is done, the Dual Procedure/ Memory panel becomes a valid option, limits can be set, and Spot is replaced by Crater.

POWER WAVE 455/POWER FEED 10