National-instruments Isolated Analog Input Modules SCC-AI03 Instrukcja Użytkownika Pobierz pdf (Strona 6)

SCC-AI Series Isolated Analog Input Modules User Guide 6 ni.com

Figure 2. Nonreferenced Signal Connection for the SCC-AI (One Channel)

If a high common-mode voltage is present, connect the negative input pins,

1 and 3, to the signal reference. Figure 3 shows a ground-referenced signal

connection on one channel of the SCC-AI.

Figure 3. Ground-Referenced Signal Connection for the SCC-AI

with High Common-Mode Voltage (One Channel)

For information about how to configure the SCC-AI module using

NI-DAQmx, refer to the SCC Quick Start Guide.

Lowpass

Filter

–

Lowpass

Filter

E/M Series DAQ Device

Signal

Source

AI (X )

SCC-AI

AI SENSE

AI GND

AI (X+8)

AI SENSE on

SC-2345/2350

terminal block

AI GND on

SCC-68

10 to 100 kΩ

Lowpass

Filter

–

Lowpass

Filter

E/M Series DAQ Device

Signal

Source

AI (X )

SCC-AI

AI SENSE

AI GND

AI (X+8)

High

CMV

–

1 2 3 4 5 6 7 8 9 10 11 12 13 14

Input Modules 1
Conventions 2
What You Need to Get Started 3
Device Specific Information 4
Connecting the Input Signals 5
Gain Adjustment 7
Offset Voltage Adjustment 8
Specifications 9
Power Requirement 10
Physical 10
Maximum Working Voltage 10
Isolation Voltage 11
Environmental 11
Electromagnetic Compatibility 11
Environmental Management 12
CE Compliance 12
Online Product Certification 12
SCC-AI Module Pin Assignments 13
371066D-01 Aug08 14

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