Using the External Shutdown Function
M370185-01
3-31
3
Using the External Shutdown Function
Use the external shutdown function to enable or disable the output of the
power supply via a logic level signal. When the external shutdown is
triggered, the power supply will display
SD POL
on the output voltage and
current displays. The external shutdown is useful for making adjustments
to either the load or the power supply without shutting off the power
supply or for using the power supply as part of a larger test system in
which digital or analog control is required.
Activating the External Shutdown Function
To activate the external shutdown function, use the AUX output supply
provided on the Analog Programming Connector J3. This input has a user
selectable polarity with logic low input from 0.0V to 1.2V and logic high
from 2.0V to 15V. The control signal for this input must be capable of
sinking 10mA minimum. This input is also compatible with the use of dry
contacts, where a short is logic low and an open is logic high. The input
lines of the shutdown circuit are fully optically isolated. See page C–4 for
specifications.
Once the External Shutdown has been triggered, the display will blink the
SD POL
.
Controlling the External Shutdown Function
The external shutdown circuit accepts a voltage or dry contact control
(high or low logic level) to enable or disable the power supply output.
Make connections for the signals at the AUX Output and Isolated Analog
Programming Connector on the rear panel. (See “AUX Output and
Isolated Analog Programming (ISOL) Connector” on page 4–20 for more
information.)
To activate the shutdown function:
Connect the control signal source to the Shutdown pin (J3.12) on the Aux
Output and Isolated Analog Programming Connector with the control
circuit ground connected to Isolated Ground pin (J3.6).
The External Shutdown pin is pulled high internally (normally high).
Therefore, if this feature is not used, the polarity should be set to 1 to
avoid false triggering. (See “Defining the Polarity of the External
Shutdown Signal” on page 3–32 for instructions.)
Summary of Contents for Soresen XTR 100-8.5
Page 2: ......
Page 16: ...xiv ...
Page 28: ...1 8 ...
Page 50: ...Local Operation 3 8 M370185 01 Figure 3 3 Front Panel Menu System ...
Page 93: ...Using Multiple Power Supplies M370185 01 3 51 3 ...
Page 94: ...Local Operation 3 52 M370185 01 ...
Page 128: ...Analog Programming APG and Isolated Analog Programming ISOL 4 34 M370185 01 ...
Page 198: ...Remote Operation 5 70 M370185 01 ...
Page 261: ...SCPI Command Tree M370185 01 A 35 A ...
Page 262: ...A 36 ...
Page 279: ...Index M370185 01 IX 3 described 3 7 3 36 number available 3 36 stored values 3 36 ...
Page 280: ...IX 4 ...