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Section 4
DATA ReCORDeR MODULe
This module preforms two functions:
1) It can output a data stream to a printer, lap-top or any other device capable of capturing serial ASCII data.
2) Accepts pre-programmed limits for time and current. The unit then compares the weld results to those limits. If the
actual weld results fall above or below those limits welding is halted to allow for corrective actions.
These features can be useful to companies using SPC or implementing ISO9000 or QS9000 programs.
To access the data functions, press the control button on the data module. This brings up the data limit menu on the display.
The first screen is the current limit screen. This allows the system to track weld results versus predefined current limits.
If the screen is locked, then it must be unlocked before any values may be changed. To change the Upper Current Limit
use the upper rotary knob and use the lower rotary knob to adjust the Lower Current Limit. If the value for that limit is
continually reduced, the display will show that limit as OFF and will not check against that limit.
The Upper Limit can not be set below the Lower Limit and the Lower Limit can not be set above the Upper Limit. If you try
to adjust the Lower Limit above the Upper Limit, the welder will automatically increase the Upper Limit to keep it above the
lower limit. Similarly, when the Upper Limit is reduced to the Lower Limit, the system will reduce the Lower Limit to keep it
below the Upper Limit.
This provides a total of 4 limits. Any number of limits, from none to all 4, can be active at one time. When one or more
of the 4 limits is active then the active LED on the Data Recorder Module will be lit. This light shows the status of the data
recorder for the active weld tool.
Pressing
scroll down again displays the time, date and printer speed screen. Details on adjusting these items are on the
next page.
Detected errors
If the data recorder module detects an error, i.e. one of the 4 limits has not been met, the display will show an
error. It will only show an error for the first limit that is not met. If there is a condition where more than one limit is not
met, multiple errors will NOT be displayed. When an error is displayed, the unit will not weld on that output again until the
error has been cleared (reset).
For example, the desired weld may be 500 amps. Weld engineering may allow
results which vary from the 500 amp target. The limits might be set up as
shown to the left. This would pass any weld as acceptable that is greater than
or equal to 480 amps and less than or equal to 550 amps. Any weld which
was outside this range would halt the welder and display an error so corrective
action could be taken.
Once in the Limit Current screen, pressing the
the Limit Time screen. The Upper and Lower Limits for weld time operate
similarly to those for current. By reducing the time values to a minimum, the
display will eventually show that limit is OFF. As with the Current Limits the
Upper Time Limit can not be below the Upper Time Limit. The welder will
adjust the Limits if the user attempts to defeat this.
Optional
features
scroll down button displays
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