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12-6
Digital I/O Port, Interlock, and Output Configuration
Safety interlock
The Digital I/O Port provides an interlock line for use with a test
fi
xture interlock switch.
When properly used, the OUTPUT of the SourceMeter will turn OFF when the lid of the test
fi
xture is opened. See
Connections
in Section 2 for important safety information when using
the test
fi
xture interlock.
When the interlock is enabled (see
Front panel output configuration
later in this section), the
output of the SourceMeter cannot be turned on unless the interlock line is pulled low through a
switch to ground as shown in Figure 12-4A. If the lid of the test
fi
xture opens (Figure 12-4B),
the switch opens, and the interlock line goes high turning the OUTPUT of the SourceMeter
OFF (high impedance). The output can only be turned back on by
fi
rst closing the lid of the test
fi
xture and then pressing the OUTPUT ON/OFF key.
NOTE
Interlock can be driven by Digital I/O. Allow 100µs settling and response time. The
Digital I/O lines are open-collector, edge-sensitive and signals should be de-
bounced to avoid erratic operation.
/Interlock
(pin 8)
GND
(pin 5 or 9)
Interlock Switch
(Lid Closed)
Interlock-
Digital I/O
SourceMeter
Test Fixture
A. SourceMeter OUTPUT can be turned on.
/Interlock
(pin 8)
GND
(pin 5 or 9)
Interlock Switch
(Lid Open)
SourceMeter
Test Fixture
B. SourceMeter OUTPUT turns off.
Interlock-
Digital I/O
Figure 12-4
Using test fixture
interlock
Содержание 6430
Страница 26: ......
Страница 32: ......
Страница 78: ...2 14 Connections ...
Страница 98: ...3 20 Basic Source Measure Operation ...
Страница 138: ...5 30 Source Measure Concepts ...
Страница 156: ...6 18 Range Digits Speed and Filters ...
Страница 168: ...7 12 Relative and Math ...
Страница 176: ...8 8 Data Store ...
Страница 202: ...9 26 Sweep Operation ...
Страница 248: ...11 22 Limit Testing ...
Страница 310: ...16 6 SCPI Signal Oriented Measurement Commands ...
Страница 418: ...17 108 SCPI Command Reference ...
Страница 450: ...18 32 Performance Verification ...
Страница 477: ...A Specifications ...
Страница 489: ...B StatusandErrorMessages ...
Страница 498: ...B 10 Status and Error Messages ...
Страница 499: ...C DataFlow ...
Страница 503: ...D IEEE 488BusOverview ...
Страница 518: ...D 16 IEEE 488 Bus Overview ...
Страница 519: ...E IEEE 488andSCPI ConformanceInformation ...
Страница 523: ...F MeasurementConsiderations ...
Страница 539: ...G GPIB488 1Protocol ...
Страница 557: ......