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NI 9437 Getting Started Guide

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© National Instruments

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9

Connecting the NI 9437

The NI 9437 provides connections for 8 digital input channels.

Figure 2.

NI 9437 Pinout

DI0
DI1
DI2
DI

3

DI4
DI5
DI6
DI7
V

S

UP

COM

0
1
2

3

4
5
6
7

8

9

0

3

4

7

«
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7
8
9
10
11
...
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Summary of Contents for NI 9437

Page 1: ...GETTING STARTED GUIDE NI 9437 8 Channel 250 V Sinking Digital Input Module ni com manuals Deutsch Français ...

Page 2: ...ht not meet the same safety ratings Refer to the documentation for each component in the system to determine the safety and EMC ratings for the entire system Safety Guidelines Operate the NI 9437 only as described in these operating instructions Hot Surface This icon denotes that the component may be hot Touching this component may result in bodily injury Caution Do not operate the NI 9437 in a ma...

Page 3: ... to the module take the following precautions A hazardous voltage is a voltage greater than 42 4 Vpk or 60 VDC to earth ground Caution Ensure that hazardous voltage wiring is performed only by qualified personnel adhering to local electrical standards Caution Do not mix hazardous voltage circuits and human accessible circuits on the same module Caution Make sure that devices and circuits connected...

Page 4: ...ardous voltage LIVE 42 4 Vpk 60 VDC you must ensure that devices and circuits connected to the module are properly insulated from human contact You must use the NI 9932 connector backshell kit to ensure that the terminals are not accessible Figure 1 NI 9932 Connector Backshell ...

Page 5: ...ntinuous 300 Vrms Measurement Category II Withstand 3 000 V verified by a 5 s dielectric withstand test Measurement Category II is for measurements performed on circuits directly connected to the electrical distribution system This category refers to local level electrical distribution such as that provided by a standard wall outlet for example 115 V for U S or 230 V for Europe Caution Do not conn...

Page 6: ...articular installation when the product is connected to a test object or if the product is used in residential areas To minimize the potential for the product to cause interference to radio and television reception or to experience unacceptable performance degradation install and use this product in strict accordance with the instructions in the product documentation Furthermore any changes or mod...

Page 7: ...al length Special Guidelines for Marine Applications Some products are Lloyd s Register LR Type Approved for marine shipboard applications To verify Lloyd s Register certification for a product visit ni com certification and search for the LR certificate or look for the Lloyd s Register mark on the product label Caution In order to meet the EMC requirements for marine applications install the prod...

Page 8: ...ironment that meets the following specifications Operating temperature IEC 60068 2 1 IEC 60068 2 2 40 C to 70 C Operating humidity IEC 60068 2 56 10 to 90 RH noncondensing Pollution Degree 2 Maximum altitude 5 000 m Indoor use only Note Refer to the NI 9437 Datasheet on ni com manuals for complete specifications ...

Page 9: ...g Started Guide National Instruments 9 Connecting the NI 9437 The NI 9437 provides connections for 8 digital input channels Figure 2 NI 9437 Pinout DI0 DI1 DI2 DI3 DI4 DI5 DI6 DI7 VSUP COM 0 1 2 3 4 5 6 7 8 9 0 3 4 7 ...

Page 10: ... connect a supply voltage to the VSUP pin on the NI 9437 Input channels on the NI 9437 read ON or OFF depending on the threshold set by the VSUP pin The VSUP threshold is approximately 2 3 of the supply voltage on the VSUP pin Figure 3 Connecting a Sourcing Output Device NI 9437 2 3 External Power Supply COM VSUP DI Sourcing Output Device ...

Page 11: ...plit Rail Power Supply Ground Fault Protection When using a floating or split rail power supply the NI 9437 can tolerate a single ground fault from VSUP to earth ground COM to earth ground or DI to earth ground The NI 9437 can tolerate a single ground fault from VSUP to earth ground or COM to earth ground because of the isolation of the module The NI 9437 can tolerate a single ground fault from DI...

Page 12: ...mal operation When using this type of power supply there is always a connection between COM and earth ground and you will not have protection against ground faults from VSUP to earth ground or from DI to earth ground LED Indicators The NI 9437 has eight LEDs to display the ON OFF state of the eight channels When an LED is lit the corresponding channel is ON and data is being read from the NI 9437 ...

Page 13: ...om manuals for more information about dynamic burden current on the NI 9437 Output devices that you connect to the NI 9437 do not need to sink current The NI 9437 input load current pulls the input voltage to a low value when the output device is open high impedance or not connected The NI 9437 is immune to capacitively coupled transients when using the correct debounce time based on the supply vo...

Page 14: ...d at ni com manuals Installs with the software CompactRIO NI CompactDAQ RELATED INFORMATION C Series Documentation Resources ni com info cseriesdoc NI 9437 Datasheet NI RIO Help LabVIEW FPGA Help NI 9437 Datasheet NI DAQmx Help LabVIEW Help Services ni com services ...

Page 15: ...r National Instruments product Product registration facilitates technical support and ensures that you receive important information updates from NI National Instruments corporate headquarters is located at 11500 North Mopac Expressway Austin Texas 78759 3504 National Instruments also has offices located around the world For telephone support in the United States create your service request at ni ...

Page 16: ...s You can find information about end user license agreements EULAs and third party legal notices in the readme file for your NI product Refer to the Export Compliance Information at ni com legal export compliance for the National Instruments global trade compliance policy and how to obtain relevant HTS codes ECCNs and other import export data NI MAKES NO EXPRESS OR IMPLIED WARRANTIES AS TO THE ACC...

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