I2773-4.4 en
33
Somat eDAQ
lite
If not using remote power, ensure that the red and black wires are either fully insulated
from each other or solidly connected to each other to prevent accidentally turning the
power off. If the wires are connected to each other and there is any chance of magnetic
induction, do not coil the cable in a loop.
NOTE
Do not apply any voltage source to the auxiliary power switch cable. It is designed for
use with a single pole, single throw contact switch only.
Application Note: Using Remote Power to Start a New Test
The remote power switch can be used to force a reboot with a test running, effectively starting a new test run. The remote
power switch accomplishes this in a way that does not drain the backup battery since the main power supply is still on during
the duration of the power down operations. It is recommended to avoid other methods that turn off or disconnect the power
supply as this drains the backup battery and can result in SIF data corruption.
2.3.4 Power Save Mode
NOTE
The power save mode is provided for limited testing applications. Please read this
section completely to fully understand the repercussions of using this operational
mode.
When power save mode is enabled, the eDAQ turns off analog power to all ELHLS and
ELBRG layers after a test run stops, reducing its power draw. Enable the power save
mode in the ELCPU configuration options. Once enabled, the power save mode may
be switched on and off during a test run using the power saver computed channel (see
“Power Saver” on page 149).
The eDAQ restores power to the EHLS and EBRG layers when needed for TCE or
web interface tasks. For example, during shunt calibration checks between test runs,
the eDAQ provides power to the selected channels.
NOTE
The eDAQ remains in power save mode after the test ends. Cycle the power or initiate
a software reset to disable the power save mode and bring up all power circuits after
ending a test.
NOTE
When using SMART modules, test runs take two to three seconds longer than usual
to start.
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