Section 2: Installation Model 2601B-PULSE System SourceMeter Instrument Reference Manual
2-42 2601B-PULSE-901-01A April 2020
SPE, SPD
Use the serial polling sequence to obtain the 2601B-PULSE serial poll byte. The serial poll byte
contains important information about internal functions (see Status model (on page 15-1)). Generally,
the serial polling sequence is used by the controller to determine which of several instruments has
requested service with the SRQ line. The serial polling sequence may be performed at any time to
obtain the status byte from the 2601B-PULSE.
Using the interlock
You can set up an interlock for the 2601B-PULSE through the 2601B-P-INT Interlock and Cable
Connector Box. When properly used, the output of the instrument turns OFF when the safety fixture
switch opens.
The interlock requires a separate safety fixture switch that is wired to the interlock input on the
2601B-P-INT. For the interlock voltage, you can use the +5 V source pins of the 2601B-PULSE digital
I/O port or an external +5 V source.
It also requires use of the Keithley Model CS-1616-3 Safety Interlock Mating Connector, which is
supplied with the instrument. This part is also available from 3M, part number 37103-A165-00E.
See DUT Test Connections (on page 4-6) for important safety information when using a test fixture.
When an interlock is required for safety, a separate circuit should be provided that meets the
requirements of the application to reliably protect the operator from hazardous conditions.
The digital I/O port is a suitable source for the 5 V required to power the physical interlock
provided by the 2601B-P-INT. Failure to adhere to these guidelines could result in personal
injury or death.
The 2601B-PULSE with the 2601B-P-INT installed provides an optional interlock circuit.
Once engaged, the interlock helps facilitate the safe operation of the instrument in a test
system by prohibiting the output voltage and current when the interlock circuit is opened. Not
using the interlock could expose the operator to hazardous conditions within the test circuit
that could result in personal injury or death.
To Next Page
Loading...
Need help?
General
