NI 9263E Manuel utilisateur
OPERATING INSTRUCTIONS AND SPECIFICATIONS
NI 9263E
4-Channel, ±10 V, 16-Bit Analog Voltage Output Module
NI 9263E Operating Instructions and Specifications 2 ni.com
This document describes how to use the National Instruments 9263E
and includes dimensions, terminal assignments, and specifications for
the NI 9263E. Visit ni.com/info and enter rdsoftwareversion
to determine which software you need for the modules you are using.
For information about installing, configuring, and programming the
system, refer to the system documentation. Visit ni.com/info and
enter cseriesdoc for information about C Series documentation.
Caution National Instruments makes no electromagnetic
compatibility (EMC) or CE marking compliance claims
for the NI 9263E. The end-product supplier is responsible
for conformity to any and all compliance requirements.
Caution The NI 9263E must be installed inside a suitable
enclosure prior to use. Hazardous voltages may be present.
© National Instruments Corp. 3 NI 9263E Operating Instructions and Specifications
NI 9263E Dimensions
The following figure shows the dimensions of the NI 9263E.
Figure 1. NI 9263E Dimensions in Millimeters (Inches)
73.4 (2.89)
0.0 (0.00)
26.7 (1.05)
58.4 (2.30)
66.0 (2.60)
0.0 (0.00)
NI 9263E Operating Instructions and Specifications 4 ni.com
Connecting the NI 9263E
The NI 9263E has a 10-terminal, detachable, screw-terminal
connector that provides connections for 4 analog output channels.
Figure 2. NI 9263E Terminal Assignments
AO0
COM
AO1
COM
AO2
COM
AO3
COM
NC
COM
0
1
2
3
4
5
6
7
8
9
© National Instruments Corp. 5 NI 9263E Operating Instructions and Specifications
Each channel of the NI 9263E has an AO terminal and a common
terminal, COM, and there is an additional COM terminal at the
bottom of the connector. All of the COM terminals are internally
connected to the isolated ground reference of the module. You can
connect a load to each channel of the NI 9263E. Connect the
positive lead of the load to the AO terminal, and the ground of the
load to the corresponding COM terminal. Refer to Figure 3 for an
illustration of connecting a load to the NI 9263E.
Figure 3. Connecting a Load to the NI 9263E
Note You must use 2-wire ferrules to create a secure
connection when connecting more than one wire to a
single terminal on the NI 9263E.
NI 9263E COM
AO
Load
NI 9263E Operating Instructions and Specifications 6 ni.com
Each channel has a digital-to-analog converter (DAC) that
produces a voltage signal. Each channel also has overvoltage
and short-circuit protection. Refer to the Specifications section
for more information about the overvoltage and short-circuit
protection. Refer to Figure 4 for an illustration of the output
circuitry for one channel of the NI 9263E.
Figure 4. Output Circuitry for One Channel of the NI 9263E
When the module powers on, the channels output the startup
voltage. Refer to the Specifications section for more information
about startup voltage. Refer to the software help for information
AO
COM
NI 9263E
Amplifier
Isolated DAC
Overvoltage/
Short-Circuit
Protection
© National Instruments Corp. 7 NI 9263E Operating Instructions and Specifications
about configuring startup output states in software. Visit
ni.com/info and enter cseriesdoc for information about C Series
documentation.
Sleep Mode
This module supports a low-power sleep mode. Support for sleep
mode at the system level depends on the chassis that the module is
plugged into. Refer to the chassis manual for information about
support for sleep mode. If the chassis supports sleep mode, refer to
the software help for information about enabling sleep mode. Visit
ni.com/info and enter cseriesdoc for information about
C Series documentation.
Typically, when a system is in sleep mode, you cannot
communicate with the modules. In sleep mode, the system
consumes minimal power and may dissipate less heat than it does
in normal mode. Refer to the Specifications section for more
information about power consumption and thermal dissipation.
NI 9263E Operating Instructions and Specifications 8 ni.com
Specifications
The following specifications are typical for the range –40 to 85 °C
internal to any enclosures unless otherwise noted. All voltages are
relative to COM unless otherwise noted.
Output Characteristics
Number of channels.......................... 4 analog output channels
DAC resolution ................................. 16 bits
Type of DAC ..................................... String
Power-on output state ....................... Channels off
Startup voltage .................................. 0 V1
Power-down voltage ......................... 0 V2
1 When the module powers on, a glitch occurs for 20 μs peaking at –1.5 V.
2 The power-down voltage peaks at 1.8 V before exponentially discharging to 0 V in
100 μs. You can add a 10 kΩload to reduce the peak voltage.
© National Instruments Corp. 9 NI 9263E Operating Instructions and Specifications
Output voltage range
Nominal ...................................... ±10 V
Minimum .................................... ±10.4 V
Typical ........................................ ±10.7 V
Maximum ................................... ±11 V
Current drive ..................................... ±1 mA per channel max
Output impedance............................. 2 Ω
Accuracy
Measurement Conditions
Percent of
Reading
(Gain Error)
Percent of
Range*
(Offset Error)
Calibrated, max (–40 to 85 °C) 0.35% 0.75%
Calibrated, typ (25 °C, ±5 °C) 0.03% 0.1%
Uncalibrated, max (–40 to 85 °C) 2.2% 1.7%
Uncalibrated, typ (25 °C, ±5 °C) 0.3% 0.25%
* Range equals ±10.7 V
NI 9263E Operating Instructions and Specifications 10 ni.com
Stability
Gain drift .................................... 14 ppm/°C
Offset drift .................................. 110 μV/°C
Protection
Overvoltage ................................ ±30 V
Short-circuit................................ Indefinitely
Update time
Noise
Updating at 100 kS/s .................. 600 μVrms
Not updating............................... 260 μVrms
Number of
Channels
Update Time for
NI cRIO-9151 R Series
Expansion Chassis
Update Time for
All Other Chassis
13.5 μs min 3μs min
26.5 μs min 5μs min
3 9 μs min 7.5 μs min
412 μs min 9.5 μs min
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