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Lincoln Electric IM8002 POWER WAVE MANAGER User Manual

Page 84

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Chapter 10. Production Monitoring

Configuration

10.6

Power Wave® Manager User Manual

IM8002

When setting the Out-of-limit tolerance for WeldScore™, remember that the sample rate is 0.25 seconds.

You should choose a tolerance value according to the fewest number of samples you want to include. For

example, a value of 0.3 seconds in the Out-of-limit tolerance field only ensures one sample. A value of 0.6

seconds ensures two samples. And so on. We recommend no less than three to five samples, which means

setting your tolerance between 0.8 seconds to 1.3 seconds (or greater as appropriate).

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If you set the Out-of-limit tolerance field for a long time

period, any welds that are shorter than this tolerance will

never trigger the action you select.
For example, John at Advanced Manufacturing set the

tolerance for the Action on voltage limit to 2.0 seconds

(where the normal range might be 0.5 to 1.5 seconds). The

welds made yesterday each took around one second to

complete. There was a problem with the welder, and the

arc voltage ran too low all day. Since the voltage was not

out of limits longer than 2.0 seconds for over the course of

each weld, no one knew until the end of the day and all

parts had to be scrapped and redone.

Figure 10.5 Out-of-Limits Tab