C H A P T E R 7 – T E S T S A N D T E S T C O N D I T I O N S
AT5600 User Manual 98-119 issue 14 Page 135
7.26. OUT – Output to User Port
Where Used
OUT is used where additional switching (other than performed by the nodes of the
AT) is required for parts of the test program.
The User Port on the tester has associated with it 6 ‘Relay Driver’ outputs. The
OUT test allows programming of the User Port relay driver outputs to perform
additional relay switching as part of the test program.
An example of this would be an application where a transformer has two separate
primary windings. An OUT test could be used to connect them in series, allowing
them to be tested as a single primary with twice the working voltage.
A second example is the switching of additional resistors mounted on the test
fixture allowing tests to be included in a program on a transformer with a loaded
secondary winding.
Specifying Test Conditions
User Port Outputs
Each of the relay driver outputs (numbered 0 – 5) is an open collector output
which can be set to On or Off as desired:
On = Connected to GND (0V)
Off = Open circuit (Floating)
Note:
The relay drivers are set as and when the tester encounters an OUT test.
The settings given will latch until another OUT test is encountered.
Therefore, if the settings are required for one part of the test program only, 2 OUT
tests will be required, 1 to turn the appropriate relay drivers on and 1 to turn them
back off.
Please also see
14.6.22 for specific advice on programming the test,
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