Related Manuals for National Instruments NI 9351
Summary of Contents for National Instruments NI 9351
- Page 1 GETTING STARTED GUIDE NI 9351 4-Ch 0-20 mA 16-bit AI, 4-Ch 24 V Sinking DI, 4-Ch 24 V Sourcing DO, SIL3 Capable...
- Page 2 This document provides information about connecting and installing the NI 9351 hardware. You must download a compiled User Program before deployment. For information about creating User Programs, deploying safety systems using the NI 9351, and diagnostics available on the NI 9351, go to ni.com/info...
- Page 3 NI 9351. A hazardous voltage is a voltage greater than 42.4 V peak voltage or 60 V DC to earth ground. Maximum voltages -to-COM 30 V DC DI-to-COM 30 V DC DO-to-COM 0 V DC to V NI 9351 Getting Started Guide | © National Instruments | 3...
- Page 4 This category is for measurements of voltages from specially protected secondary circuits. Such voltage measurements include signal levels, special Channels include V , AI V , and COM. 4 | ni.com | NI 9351 Getting Started Guide...
- Page 5 Categories CAT II, CAT III, or CAT IV. Safety Guidelines for Hazardous Locations The NI 9351 is suitable for use in Class I, Division 2, Groups A, B, C, D, T4 hazardous locations; Class I, Zone 2, AEx nA IIC T4 Gc and Ex nA IIC T4 Gc hazardous locations;...
- Page 6 II 3G and is suitable for use in Zone 2 hazardous locations, in ambient temperatures of -40 °C ≤ Ta ≤ 70 °C. If you are using the NI 9351 in Gas Group IIC hazardous locations, you must use the device in an NI chassis that has been evaluated as Ex nC IIC T4, Ex IIC T4, Ex nA IIC T4, or Ex nL IIC T4 equipment.
- Page 7 (EMC) stated in the product specifications. These requirements and limits provide reasonable protection against harmful interference when the product is operated in the intended operational electromagnetic environment. NI 9351 Getting Started Guide | © National Instruments | 7...
- Page 8 Refer to the following guidelines to ensure specified EMC performance. Operate this product only with shielded cables Notice and accessories. Keep the chassis ground connection to the Notice cable shield as short as possible. 8 | ni.com | NI 9351 Getting Started Guide...
- Page 9 EMC performance is attained. Preparing the Environment Ensure that the environment in which you are using the NI 9351 meets the following specifications. Operating temperature -40 °C to 70 °C...
- Page 10 Pollution Degree Maximum altitude 5,000 m Indoor use only. Refer to the device datasheet on ni.com/manuals Note for complete specifications. 10 | ni.com | NI 9351 Getting Started Guide...
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Page 11: Table Of Contents
NI 9351 Pinout AI Vsup AI COM AI COM AI Vsup AI Vsup AI COM AI COM AI Vsup Vsup NI 9351 Getting Started Guide | © National Instruments | 11... -
Page 12: Com
AI COM Analog input common reference connection. Internally connected to COM. AI V Voltage supply connection. Not internally connected to V Common reference connection Digital input signal connection Digital output signal connection Voltage supply connection 12 | ni.com | NI 9351 Getting Started Guide... - Page 13 NI 9351 LEDs Table 2. LED Descriptions Description /Status Internal Fault I/O Fault UserLED0 NI 9351 Getting Started Guide | © National Instruments | 13...
- Page 14 Module powered on. Module Flashing is not in Operational Mode or User Program is not running. Module is powered off. Flashing Module is in Fail-safe Mode. Internal Fault Module is not in Fail-safe Mode. 14 | ni.com | NI 9351 Getting Started Guide...
- Page 15 No I/O Fault has been detected. UserLED0 Flashing User-configurable. Refer to the C Series Functional Safety Manual Note ni.com/manuals for detailed information on flash patterns in status and fault LEDs. NI 9351 Getting Started Guide | © National Instruments | 15...
- Page 16 You must use the included connector Caution backshell to secure connections to the NI 9351. Figure 1. Connector Backshell Installation 1. Align the connector backshell with the 26-pin spring terminal block. 16 | ni.com | NI 9351 Getting Started Guide...
- Page 17 Tighten to 0.5 N · m (4 lb · in.) torque. Connecting an External Power Supply You must connect an external power supply to the NI 9351. The module is independent from the chassis and requires an external power supply to operate.
- Page 18 Powering Analog Devices You can connect an external power supply to the NI 9351 to power analog devices connected to the module. Connect the positive lead of the power supply to a AI V pin and the negative lead of the power supply to AI COM. Install a...
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Page 19: Com
NI 9351 • Use this diagram for single input and dual input configurations. • Use one of the following pairs for dual switches: DI0 and DI1, DI2 and DI3. NI 9351 Getting Started Guide | © National Instruments | 19... - Page 20 Use this diagram for single input with test pulse configurations. • Use test pulses to detect wiring faults on NC (normally closed) switches. • Connect the DO pin to the NC (normally closed) switch to provide test pulse output. 20 | ni.com | NI 9351 Getting Started Guide...
- Page 21 NI 9351 Dual Input with Test Pulse Connection 3 kΩ (Optional) Device 3 kΩ (Optional) V sup External Power Supply – NI 9351 NI 9351 Getting Started Guide | © National Instruments | 21...
- Page 22 Use test pulses to detect wiring faults on NC (normally closed) switches. NI 9351 Output Connection Device External – Power Supply NI 9351 • Use this diagram for the following configurations: – Single output – Dual output 22 | ni.com | NI 9351 Getting Started Guide...
- Page 23 – Single output with internal test pulse – Dual output with internal test pulse NI 9351 Output with External Test Pulse Connection Device External – Power Supply NI 9351 NI 9351 Getting Started Guide | © National Instruments | 23...
- Page 24 Connect the DI channel number that corresponds to the DO channel number. Single output with test pulse connections use DOn and DIn. Dual output with test pulse connections use DOn and DIn, DOn+1 and DIn+1. 24 | ni.com | NI 9351 Getting Started Guide...
- Page 25 • Use this diagram for single output with external readback configurations. • Connect a wire from the external monitoring location to a DI channel to monitor the output value. NI 9351 Getting Started Guide | © National Instruments | 25...
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Page 26: Ai Vsup
Analog Connections NI 9351 Loop-Powered Current Transducer Connection AI V External Power AI COM Supply – AI V Loop-Powered Current Transducer NI 9351 26 | ni.com | NI 9351 Getting Started Guide... -
Page 27: Ai Vsup
NI 9351 Three-Wire Current Transducer Connection AI V External Power AI COM Supply – AI V Three-Wire Current – Transducer AI COM NI 9351 NI 9351 Getting Started Guide | © National Instruments | 27... - Page 28 NI 9351 Single Input (1oo1) Configuration Final Sensor Element NI 9351 NI 9351 Dual Input (1oo2) Configuration Sensor Final Element Sensor NI 9351 28 | ni.com | NI 9351 Getting Started Guide...
- Page 29 NI 9351 Triple Input (2oo3) Configuration Sensor Final Sensor Element Sensor NI 9351 NI 9351 HIPPS Configuration Pressure Pressure Pressure NI 9351 NI 9351 Getting Started Guide | © National Instruments | 29...
- Page 30 NI 9351 Connection Guidelines • Make sure that devices you connect to the NI 9351 are compatible with the module specifications. • You must use a two-wire ferrule to create a secure connection when connecting two wires or stranded wires to a single terminal.
- Page 31 For Functional Safety applications, use a Notice power supply with 4 kV common-mode surge rating to meet Functional Safety EMC Requirements. This may be achieved with external surge suppression. NI 9351 Getting Started Guide | © National Instruments | 31...
- Page 32 • Follow mounting and thermal guidelines in the CompactRIO controller documentation. Refer to the table below for suggested terminal blocks for mounting the resistor. 32 | ni.com | NI 9351 Getting Started Guide...
- Page 33 Install an external flyback diode on any digital output connection to inductive or energy-storing devices that do not have flyback protection. Inductive or energy storing devices include solenoids, motors, and relays. NI 9351 Getting Started Guide | © National Instruments | 33...
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Page 34: Com
Figure 2. Connecting a Flyback Diode to the NI 9351 Flyback Device Diode – External Power Supply NI 9351 High-Vibration Application Connections If your application is subject to high vibration, NI recommends that you use ferrules to terminate stranded wire. - Page 35 The NI 9351 provides overcurrent and short-circuit protection for each DO channel. Overvoltage and negative voltage conditions Caution can damage the NI 9351. Check the voltage specifications for all devices that you connect to the NI 9351. NI 9351 Getting Started Guide | © National Instruments | 35...
- Page 36 Note for more information about I/O protection ratings. Analog Input Protection The NI 9351 provides overvoltage protection for each AI channel. Some overvoltage conditions may cause an internal temperature fault, forcing the module into Fail-safe Mode. Conditions that may cause an internal temperature fault include: •...
- Page 37 Overtemperature Protection The NI 9351 has an internal temperature sensor that will cause the module to enter Fail-safe Mode if the internal temperature limit is exceeded. Overtemperature protection will not cause the Note module to enter Fail-safe Mode under normal operating conditions.
- Page 38 For patents covering NI products/technology, refer to the appropriate location: Help»Patents in your software, file on your media, or the National Instruments Patent Notice at patents.txt ni.com/ . You can find information about end-user license agreements (EULAs) and third-party patents legal notices in the readme file for your NI product.