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Choose the Limits tab on the configuration dialog. These limits are events which will
stop the testing. Exceeding any of these limits will halt the LCTS. The range for all limits
is between 1 and 10,000,000 events. Set the Test Cycles limit to the number of tests to
perform on the switch item. Since this device has a contact which is being tested, there
is a pass/fail status for each test cycle. The total number of failures and the number of
sequential failures is counted. When these failure counts reaches the set limits, testing
will be halted. Set the failure limits according to your test criteria. Click the OK button to
transfer the parameters.
Resetting the Test Data
The LCTS keeps a set of cumulative results for all the testing it performs. This includes
the cycle count, fail count, sequential fail count and min/max resistance and bounce
values measured. The user is given complete control over when these values get reset.
Loading new configuration will not change any of the stored numbers. The user must
perform the reset manually. To reset the data select the Reset Limits menu item on the
Configuration menu. The dialog box shown in Figure 14 will allow selection of the items
to be reset. The LCTS must be stopped before this operation can be performed.
Automatic Learn Mode
The software application has an automatic learn mode. This is only available when the
LCTS is stopped. Using the learn mode will erase any previous test data or
configuration parameters. The learn mode can be used only to configure the LCTS for
devices with contacts.
The learn mode is used to simplify the configuration setup of the LCTS. It may not find
suitable values for all parameters. It cannot know the event limits to which the device
must be tested. The learn mode also requires a know, good switch which is accepted as
the “golden master”. If the switch fails, bad results can be expected.
Figure 14.
Model 933A Application Software Reset Dialog
