GETTING STARTED GUIDE NI DO, 0 V to 60 V, Sinking, 8 μs - PDF

GETTING STARTED GUIDE NI DO, 0 V to 60 V, Sinking, 8 μs This document explains how to connect to the NI Note Before you begin, complete the software and hardware installation procedures in

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GETTING STARTED GUIDE NI DO, 0 V to 60 V, Sinking, 8 μs This document explains how to connect to the NI Note Before you begin, complete the software and hardware installation procedures in your chassis documentation. Note The guidelines in this document are specific to the NI The other components in the system might 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 9477 only as described in this document. Caution Do not operate the NI 9477 in a manner not specified in this document. Product misuse can result in a hazard. You can compromise the safety protection built into the product if the product is damaged in any way. If the product is damaged, return it to NI for repair. 2 NI 9477 Getting Started Guide Safety Voltages Connect only voltages that are within the following limits: Channel-to-COM 1 Isolation Channel-to-channel Channel-to-earth ground Continuous Withstand 60 VDC maximum, Measurement Category I None 60 VDC, Measurement Category I 1,000 Vrms, verified by a 5 s dielectric withstand test Measurement Category I is for measurements performed on circuits not directly connected to the electrical distribution system referred to as MAINS voltage. MAINS is a hazardous live electrical supply system that powers equipment. This category is for measurements of voltages from specially protected secondary 1 The maximum voltage that can be applied or output between a channel and COM without creating a safety hazard. NI 9477 Getting Started Guide National Instruments 3 circuits. Such voltage measurements include signal levels, special equipment, limited-energy parts of equipment, circuits powered by regulated low-voltage sources, and electronics. Caution Do not connect the NI 9477 to signals or use for measurements within Measurement Categories II, III, or IV. Note Measurement Categories CAT I and CAT O are equivalent. These test and measurement circuits are not intended for direct connection to the MAINS building installations of Measurement Categories CAT II, CAT III, or CAT IV. Safety Guidelines for Hazardous Locations The NI 9477 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 and Ex na IIC T4 hazardous locations; and nonhazardous locations only. Follow these guidelines if you are installing the NI 9477 in a potentially explosive environment. Not following these guidelines may result in serious injury or death. 4 NI 9477 Getting Started Guide Caution Do not disconnect I/O-side wires or connectors unless power has been switched off or the area is known to be nonhazardous. Caution Do not remove modules unless power has been switched off or the area is known to be nonhazardous. Caution Substitution of components may impair suitability for Class I, Division 2. Caution For Division 2 and Zone 2 applications, install the system in an enclosure rated to at least IP54 as defined by IEC/EN Caution For Division 2 and Zone 2 applications, install a protection device across the external power supply and the COM pin. The device must prevent the external power supply voltage from exceeding 80 V if there is a transient overvoltage condition. Special Conditions for Hazardous Locations Use in Europe and Internationally The NI 9477 has been evaluated as Ex na IIC T4 Gc equipment under DEMKO Certificate No. 03 ATEX X and is NI 9477 Getting Started Guide National Instruments 5 IECEx UL X certified. Each NI 9477 is marked 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 9477 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. Caution You must make sure that transient disturbances do not exceed 140% of the rated voltage. Caution The system shall only be used in an area of not more than Pollution Degree 2, as defined in IEC Caution The system shall be mounted in an ATEX/IECEx-certified enclosure with a minimum ingress protection rating of at least IP54 as defined in IEC/EN Caution The enclosure must have a door or cover accessible only by the use of a tool. Electromagnetic Compatibility Guidelines This product was tested and complies with the regulatory requirements and limits for electromagnetic compatibility (EMC) 6 NI 9477 Getting Started Guide 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. This product is intended for use in industrial locations. However, harmful interference may occur in some installations, when the product is connected to a peripheral device or test object, or if the product is used in residential or commercial areas. To minimize interference with radio and television reception and prevent unacceptable performance degradation, install and use this product in strict accordance with the instructions in the product documentation. Furthermore, any changes or modifications to the product not expressly approved by National Instruments could void your authority to operate it under your local regulatory rules. Special Conditions 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 and search for the LR certificate, or look for the Lloyd s Register mark on the product. NI 9477 Getting Started Guide National Instruments 7 Caution In order to meet the EMC requirements for marine applications, install the product in a shielded enclosure with shielded and/or filtered power and input/output ports. In addition, take precautions when designing, selecting, and installing measurement probes and cables to ensure that the desired EMC performance is attained. Preparing the Environment Ensure that the environment in which you are using the NI 9477 meets the following specifications. Operating temperature -40 C to 70 C (IEC , IEC ) Operating humidity (IEC ) Pollution Degree 2 Maximum altitude Indoor use only. 10% RH to 90% RH, noncondensing 2,000 m Note Refer to the device datasheet on for complete specifications. 8 NI 9477 Getting Started Guide NI 9477 Pinout DO16 DO17 DO18 DO19 DO20 DO21 DO22 DO23 COM COM DO24 DO25 DO26 DO27 DO28 DO29 DO30 DO DO0 DO1 DO2 DO3 DO4 DO5 DO6 DO7 COM COM DO8 DO9 DO10 DO11 DO12 DO13 DO14 DO15 NC NI 9477 Getting Started Guide National Instruments 9 Table 1. NI 9477 Signal Descriptions Signal COM DO NC Description Common reference connection Digital output signal connection No connection Connecting Digital Devices You can connect a variety of industrial devices, such as solenoids, motors, actuators, relays, and lamps to the NI You must connect an external power supply to the NI The power supply provides the current for the output channels. 10 NI 9477 Getting Started Guide Figure 1. Connecting an Industrial Device to the NI 9477 DO COM Device + External Power Supply NI 9477 Caution Do not install or remove C Series modules from your system if the external power supply connected to the Vsup and COM pins is powered on. Ensure that the devices you connect to the NI 9477 are compatible with the output specifications of the NI Refer to the device datasheet at for output specifications. NI 9477 Getting Started Guide National Instruments 11 Increasing Current Drive Each channel of the NI 9477 has a continuous output current of 1 A. If you want to increase the output current to a device, you can connect any number of channels together in parallel. For example, if you want to drive 4 A of current, connect DO0 through DO3 in parallel, as shown in the following figure. You must turn all parallel channels on and off simultaneously so that the current on any single channel cannot exceed the 1 A rating. 12 NI 9477 Getting Started Guide Figure 2. Increasing the Current to a Device Connected to the NI 9477 DO0 1 A 4 A Device DO1 DO2 1 A 1 A + _ External Power Supply DO3 1 A NI 9477 COM NI 9477 Getting Started Guide National Instruments 13 Protecting the Digital Outputs from Flyback Voltages If the channel is switching an inductive or energy-storing device such as a solenoid, motor, or relay, and the device does not have flyback protection, install an external flyback diode. Figure 3. Connecting a Flyback Diode DO Inductive Device Flyback Diode + External Power Supply COM NI NI 9477 Getting Started Guide Where to Go Next CompactRIO NI CompactDAQ NI 9477 Datasheet NI-RIO Help LabVIEW FPGA Help NI 9477 Datasheet NI-DAQmx Help LabVIEW Help RELATED INFORMATION C Series Documentation & Resources cseriesdoc Services Located at Installs with the software NI 9477 Getting Started Guide National Instruments 15 Worldwide Support and Services The NI website is your complete resource for technical support. At, you have access to everything from troubleshooting and application development self-help resources to and phone assistance from NI Application Engineers. Visit for NI Factory Installation Services, repairs, extended warranty, and other services. Visit to register your NI product. Product registration facilitates technical support and ensures that you receive important information updates from NI. A Declaration of Conformity (DoC) is our claim of compliance with the Council of the European Communities using the manufacturer s declaration of conformity. This system affords the user protection for electromagnetic compatibility (EMC) and product safety. You can obtain the DoC for your product by visiting If your product supports calibration, you can obtain the calibration certificate for your product at 16 NI 9477 Getting Started Guide NI corporate headquarters is located at North Mopac Expressway, Austin, Texas, NI also has offices located around the world. For telephone support in the United States, create your service request at or dial ASK MYNI ( ). For telephone support outside the United States, visit the Worldwide Offices section of to access the branch office websites, which provide up-to-date contact information, support phone numbers, addresses, and current events. NI 9477 Getting Started Guide National Instruments 17 Refer to the NI Trademarks and Logo Guidelines at for information on NI trademarks. Other product and company names mentioned herein are trademarks or trade names of their respective companies. For patents covering NI 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 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 for the NI 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 ACCURACY OF THE INFORMATION CONTAINED HEREIN AND SHALL NOT BE LIABLE FOR ANY ERRORS. U.S. Government Customers: The data contained in this manual was developed at private expense and is subject to the applicable limited rights and restricted data rights as set forth in FAR , DFAR , and DFAR National Instruments. All rights reserved D-01 Jan16
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