Lincoln Electric SVM172-A service manual BB-7

Models: SVM172-A

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OPERATION

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CHANGING ARC WAVE CONTROL

 

 

If the selected weld mode uses any of the four available wave controls, users can press the left MSP4 pushbutton until the ARC CONTROL LED is illuminated. The value, name and units (if applicable) of the available wave con- trols will appear. Note that the name of the control is derived from the weld table and may not necessarily appear as "Wave Control". Repeated pressing of the left MSP4 pushbutton will cycle through all active wave con- trols and then the weld mode. Turning the MSP4 encoder will change the value of the displayed wave control.

CHANGING WELD SEQUENCE BEHAVIOR

Weld sequencing attributes are grouped into two cate- gories, START OPTIONS and END OPTIONS. START OPTIONS may include Preflow Time, Run-in Wire Feed Speed, and Start Time. END OPTIONS may include Crater Time, Burnback Time and Postflow Time. The attributes that appear in the START and END OPTIONS are weld mode dependent. For example, if a TIG weld mode is selected, Run-in WFS will not appear since it is not relevant to the selected process. Repeated pressing of the right MSP4 pushbutton will cycle through all rele- vant START and END OPTIONS. Turning the MSP4 encoder will change the value of the selected option.

When the Start Time attribute is set to a value other than OFF, the START OPTIONS LED will blink synchronous with the WFS and VOLTS/TRIM LED’s on the dual-display panel. This blinking is used to indicate that start wire feed speed and voltage/trim can now be set to values different from those used while welding. Similarly, if the Crater Time attribute is set to a value other than OFF, the END OPTIONS LED will blink synchronously with the dual-dis- play LED’s, indicating that crater wire feed speed and voltage/trim now can be set to values different from those used while welding.

INFRARED (IR) CONTROL

The MSP4 interface includes an infrared transceiver. This allows wireless machine configuration using a Palm OS based hand held computer. A proprietary Palm OS appli- cation, ALPalm, was developed for this purpose. (Contact Lincoln Electric for more information on this feature.)

LOCKOUT/SECURITY

The MSP4 can be optionally configured to prevent the welder from changing selected MSP4 options. By default, the welder will be able to change the weld mode, all rele- vant wave controls and all relevant start and end options.

POWER FEED 10M SINGLE/DUAL

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Lincoln Electric SVM172-A service manual BB-7