USER GUIDE
SCC-AO10 Isolated Analog
Output Module
The SCC-AO10 is an isolated voltage output module with an output range
of ±10 V. The output voltage level is controlled by the DAC output of an
E/M Series DAQ device. You can increase the output voltage level to
±20 V by connecting two SCC-AO10 modules in series.
Conventions
The following conventions are used in this guide:
» The » symbol leads you through nested menu items and dialog box options
to a final action. The sequence File»Page Setup»Options directs you to
pull down the File menu, select the Page Setup item, and select Options
from the last dialog box.
This icon denotes a note, which alerts you to important information.
This icon denotes a caution, which advises you of precautions to take to
avoid injury, data loss, or a system crash. When this symbol is marked on
the product, refer to the Read Me First: Safety and Radio-Frequency
Interference document, shipped with the product, for precautions to take.
When symbol is marked on a product it denotes a warning advising you to
take precautions to avoid electrical shock.
When symbol is marked on a product it denotes a component that may be
hot. Touching this component may result in bodily injury.
bold Bold text denotes items that you must select or click in the software, such
as menu items and dialog box options. Bold text also denotes parameter
names.
italic Italic text denotes variables, emphasis, a cross-reference, an introduction
to a key concept, or text as it appears on a hardware label. Italic text also
denotes text that is a placeholder for a word or value that you must supply.
monospace Text in this font denotes text or characters that you should enter from the
keyboard, sections of code, programming examples, and syntax examples.
This font is also used for the proper names of disk drives, paths, directories,
programs, subprograms, subroutines, device names, functions, operations,
variables, filenames, and extensions.
SC-2345 SC-2345 refers to both the SC-2345 connector block and the SC-2345 with
configurable connectors.
SCC SCC refers to any SCC Series signal conditioning module.
What You Need to Get Started
To set up and use the SCC-AO10, you need the following items:
❑ Hardware
– SC-2345/2350 with one of the following:
• SCC-PWR01
• SCC-PWR02 and the PS01 power supply
• SCC-PWR03 (requires a 7 to 42 VDC power supply,
not included)
– One or more SCC-AO10
– 68-pin E/M Series DAQ device
– 68-pin cable
– Quick Reference Label
❑ Software
– The latest version of NI-DAQmx
❑ Documentation
– SCC-AO10 Isolated Analog Output Module User Guide
– SC-2345/2350 User Manual
– SCC Quick Start Guide
– Read Me First: Safety and Radio-Frequency Interference
– Documentation for your hardware
– Documentation for your software
❑ Tools
– 1/8 in. flathead screwdriver
– Numbers 1 and 2 Phillips screwdrivers
– Wire insulation stripper
SCC-AO10 Isolated Analog Output Module User Guide 2 ni.com
Note Software scaling of measurements is not supported on the Macintosh operating
system. Refer to the SCC-AO10 Connector Pin Assignments section.
You can download NI documents from
the latest version of NI-DAQmx, click Download Software at
Device Specific Information
Note For general SCC module installation and signal connection information, and
information about the SC-2345/2350 carrier, refer to the SCC Quick Start Guide, available
for download at
ni.com/manuals.
Installing the SCC-AO10
Caution Refer to the Read Me First: Safety and Radio-Frequency Interference document
before removing equipment covers or connecting/disconnecting any signal wires.
Plug the SCC-AO10 into either SC-2345/2350 analog output socket
J(X+17), where X is 0 or 1. The SC-2345/2350 routes the voltage output of
E/M Series DAQ device analog output channel AO (X) to the SCC-AO10.
Connecting the SCC-AO10 to a Load
Caution Refer to the Read Me First: Safety and Radio-Frequency Interference document
before removing equipment covers or connecting/disconnecting any signal wires.
ni.com/manuals. To download
ni.com.
Note The signal names have changed. Refer to ni.com/info and enter rdtntg to
confirm the signal names.
The SCC-AO10 has a three-pin screw-terminal connector that accepts
28 to 16 AWG wires.
The screw terminals are labeled by pin numbers 1 to 3. Pin 1 is the isolated
ground. Pins 2 and 3 both connect to the isolated voltage output for
flexibility in field wiring.
Caution Connecting an external voltage source to the output terminals of the SCC-AO10
may damage the module.
© National Instruments Corporation 3 SCC-AO10 Isolated Analog Output Module User Guide
Figures 1 and 2 show the SCC-AO10 connected to a nonreferenced load
and to a load with a high common-mode voltage.
E/M Series
DAQ Device
AO (X )
AO GND
SCC-AO10
3
2
1
I
Figure 1. SCC-AO10 Connected to a Nonreferenced Load
E/M Series
DAQ Device
X )
AO (
AO GND
SCC-AO10
3
2
1
Load
Load
I
Figure 2. SCC-AO10 Connected to a Load with a High Common-Mode Voltage
Connecting Two SCC-AO10 Modules in Series
You can increase the maximum total output voltage to ±20 V by connecting
two SCC-AO10 modules in series. Plug the two modules into sockets J17
and J18 of the SC-2345/2350, and wire the modules to a load as shown in
Figure 3.
SCC-AO10 Isolated Analog Output Module User Guide 4 ni.com
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