Related Manuals for National Instruments NI 9227
Summary of Contents for National Instruments NI 9227
- Page 1 OPERATING INSTRUCTIONS AND SPECIFICATIONS NI 9227 4-Channel, 5 A , 24-Bit, Simultaneous, Channel-to-Channel Isolated Analog Input Module Français Deutsch ni.com/manuals...
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Page 2: Related Information
Related Information NI CompactDAQ & Chassis Compatibility NI CompactRIO Documentation compatibility ni.com/info ni.com/info cseriesdoc Software Support Services ni.com/info softwareversion ni.com/services 2 | ni.com | NI 9227 Operating Instructions and Specifications... -
Page 3: Safety Guidelines For Hazardous Voltages
If hazardous voltages are connected to the module, take the following precautions. A hazardous voltage is a voltage greater than 42.4 V or 60 VDC to earth ground. NI 9227 Operating Instructions and Specifications | © National Instruments | 3... - Page 4 Do not mix hazardous voltage circuits and Caution human-accessible circuits on the same module. Make sure that devices and circuits connected Caution to the module are properly insulated from human contact. 4 | ni.com | NI 9227 Operating Instructions and Specifications...
- Page 5 You must use the NI 9971 connector backshell kit to ensure that the terminals are not accessible. Figure 1 shows the NI 9971 connector backshell. Figure 1. NI 9971 Connector Backshell NI 9227 Operating Instructions and Specifications | © National Instruments | 5...
- Page 6 The NI 9227 has four 2-terminal detachable screw-terminal connectors that provide connections for four simultaneously sampled, isolated analog input channels. Figure 2. NI 9227 Terminal Assignments AI0+ AI0– AI1+ AI1– AI2+ AI2– AI3+ AI3– 6 | ni.com | NI 9227 Operating Instructions and Specifications...
- Page 7 You can connect ground-referenced or floating current sources to the NI 9227. Connect the positive side of the current source to the AI+ terminal, and connect the negative side of the current source to the AI- terminal. If you make a ground-referenced connection...
- Page 8 Refer to Figures 3 and 4 for illustrations of how to connect grounded and floating current sources to the NI 9227. Figure 3. Connecting a Grounded Current Source to the NI 9227 Current Source AI– NI 9227 Figure 4. Connecting a Floating Current Source to the NI 9227...
- Page 9 Figure 5 for an illustration of the circuitry for one channel of the NI 9227. Figure 5. Input Circuitry for One Channel of the NI 9227 Shunt Resistor AI– Amplifier Prefilter NI 9227 NI 9227 Operating Instructions and Specifications | © National Instruments | 9...
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Page 10: Wiring For High-Vibration Applications
Refer to Figure 6 for an illustration of using ferrules. Refer to Figure 1 for an illustration of the NI 9971 connector backshell. Figure 6. 2-Terminal Detachable Screw-Terminal Connector with Ferrule 10 | ni.com | NI 9227 Operating Instructions and Specifications... - Page 11 The small amount of variation in gain with respect to frequency is called the passband flatness. The digital filters of the NI 9227 adjust the frequency range of the passband to match the data rate. Therefore, the amount of gain or attenuation at a given frequency depends on the data rate.
- Page 12 Therefore, the stopband frequency scales precisely with the data rate. The stopband rejection is the minimum amount of attenuation applied by the filter to all signals with frequencies within the stopband. 12 | ni.com | NI 9227 Operating Instructions and Specifications...
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Page 13: Alias-Free Bandwidth
12.8 MHz, but the module also can accept an external master timebase or export its own master timebase. To synchronize the data rate of an NI 9227 with other modules that use master timebases to control sampling, all of the modules must share a single master timebase source. - Page 14 16.667 kS/s, and so on down to 1.613 kS/s, depending on the value of n. When using an external timebase with a frequency other than 12.8 MHz, the NI 9227 has a different set of data rates. The NI cRIO-9151 R Series Expansion chassis Note does not support sharing timebases between modules.
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Page 15: Sleep Mode
Refer to the Specifications section for more information about power consumption and thermal dissipation. NI 9227 Operating Instructions and Specifications | © National Instruments | 15... -
Page 16: Specifications
To limit radiated emissions and to ensure that this device functions within specifications in its operational electromagnetic environment, take precautions when designing, selecting, and installing measurement probes and cables. 16 | ni.com | NI 9227 Operating Instructions and Specifications... -
Page 17: Input Characteristics
) using internal master timebase Minimum........1.613 kS/s Maximum ........50 kS/s Data rate range (f ) using external master timebase Minimum........390.625 S/s Maximum ........51.36 kS/s NI 9227 Operating Instructions and Specifications | © National Instruments | 17... - Page 18 4 channels to keep the power dissipation inside the module within safe operating limits. Overcurrent conditions to keep the module operating within specified limits. The maximum DC current that produces a non-saturated reading. 18 | ni.com | NI 9227 Operating Instructions and Specifications...
- Page 19 Accuracy at operating range of 10 A Percent of Percent of Reading Range Measurement Conditions (Gain Error) (Offset Error) Calibrated max (-40 to 70 °C) ±0.38% ±0.19% Range equals 7.07 A peak (5 A NI 9227 Operating Instructions and Specifications | © National Instruments | 19...
- Page 20 = 50 kS/s) ..... 0.1° max Input delay ........40 + 2.9 μs -------- - Passband Frequency ........0.453 · f Flatness (f = 50 kS/s) ....±100 mdB max 20 | ni.com | NI 9227 Operating Instructions and Specifications...
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Page 21: Power Requirements
MTBF ..........Contact NI for Bellcore MTBF or MIL-HDBK-217F specifications. Power Requirements Power consumption from chassis Active mode ....... 730 mW max Sleep mode ......... 50 μW max NI 9227 Operating Instructions and Specifications | © National Instruments | 21... -
Page 22: Physical Characteristics
Torque for screw terminals ....0.22 to 0.25 N · m (1.95 to 2.21 lb · in.) Ferrules ..........0.25 mm to 0.5 mm Weight..........145 g (5.1 oz) Measured with 5 A on each channel. 22 | ni.com | NI 9227 Operating Instructions and Specifications... -
Page 23: Isolation Voltages
115 V for U.S. or 230 V for Europe. Do not connect to signals or use for Caution measurements within Measurement Categories III or IV. NI 9227 Operating Instructions and Specifications | © National Instruments | 23... -
Page 24: Safety Standards
EN 55011 (CISPR 11): Group 1, Class A emissions • AS/NZS CISPR 11: Group 1, Class A emissions • FCC 47 CFR Part 15B: Class A emissions • ICES-001: Class A emissions 24 | ni.com | NI 9227 Operating Instructions and Specifications... -
Page 25: Online Product Certification
To obtain product certifications and the DoC for this product, visit ni.com/ , search by module number or product line, certification and click the appropriate link in the Certification column. NI 9227 Operating Instructions and Specifications | © National Instruments | 25... -
Page 26: Shock And Vibration
Operating temperature (IEC 60068-2-1, IEC 60068-2-2) ..-40 to 70 °C Storage temperature (IEC 60068-2-1, IEC 60068-2-2) ..-40 to 85 °C Ingress protection......IP 40 26 | ni.com | NI 9227 Operating Instructions and Specifications... -
Page 27: Environmental Management
Our Environmental Impact web page at ni.com/environment This page contains the environmental regulations and directives with which NI complies, as well as other environmental information not included in this document. NI 9227 Operating Instructions and Specifications | © National Instruments | 27... -
Page 28: Waste Electrical And Electronic Equipment (Weee)
China RoHS compliance, go to ni.com/ environment/rohs_china Calibration You can obtain the calibration certificate and information about calibration services for the NI 9227 at ni.com/calibration Calibration interval ......1 year 28 | ni.com | NI 9227 Operating Instructions and Specifications... -
Page 29: Worldwide Support And Services
You can obtain the DoC for your product by visiting . If your product supports calibration, ni.com/certification you can obtain the calibration certificate for your product ni.com/calibration NI 9227 Operating Instructions and Specifications | © National Instruments | 29... - Page 30 United States, visit the Worldwide Offices section of to access the branch office ni.com/niglobal websites, which provide up-to-date contact information, support phone numbers, email addresses, and current events. 30 | ni.com | NI 9227 Operating Instructions and Specifications...
- Page 31 For patents covering National Instruments products/technology, refer to the appropriate location: Help»Patents in your software, the patents.txt file on your media, or the National Instruments Patent Notice at ni.com/patents . You can find information about end-user license agreements (EULAs) and third-party legal notices in the readme file for your NI product.
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