Configuring switches, Continuously enable the sensor excitation output, Configuring switches – Juniper Systems Allegro DAQ User Manual
Page 16

16 User’s Guide
The chart below shows the name and default setting of each switch.
Switch #
Switch Name
Default Setting
1
I_FLAG
OFF
2
PFI5_OUT
ON
3
OPA_EN_H
OFF
4
DIO7_OUT
ON
5
SENSOR_EXC
ON
6
EXC_BYPASS
OFF
With the switches in their default positions, the DAQ Expansion Pod
is configured as follows:
The current limit monitoring of the Sensor Excitation Output is
disabled.
PFI 5 is connected directly to the 50-pin D connector.
The Sensor Excitation is enabled continuously.
DIO 7 may be used for standard digital input and output.
The Sensor Excitation is output rather than the Analog Out 0
signal.
Configuring Switches
This section shows you how to reconfigure the switches of the DAQ
Extension Pod. Specifically, it shows you how to:
Continuously enable the Sensor Excitation Output
Use DIO7 to enable/disable the Sensor Excitation Output
Output the Analog Output 0 rather than the Sensor Excitation
Enable current limit monitoring
Disable current limit monitoring
Continuously enable the Sensor Excitation Output
By setting the configuration switches as shown in the following
table, the Sensor Excitation is continuously output at the voltage set
by Analog Out 0. The Sensor Excitation Output uses Pin 16 on the
50-pin connector.
To continuously enable the Sensor Excitation Output, configure the
switches below to the following settings:
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