This document describes how to use the National Instruments 9503 module and includes specifications and pin assignments for the NI 9503. Visit and enter ni.com/info rdsoftwareversion 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.
National Instruments for repair. Safety Guidelines for Hazardous Locations The NI 9503 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.
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. Each module 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 4 | ni.com | NI 9503 User Manual and Specifications...
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To ensure compliance with the applicable Caution regulatory requirements, product installation requires either special considerations or user-installed, add-on devices. See the product installation instructions for further information. 6 | ni.com | NI 9503 User Manual and Specifications...
NI 9503 Hardware Overview The NI 9503 is a stepper motor drive for use with 2-phase hybrid stepper motors in either bipolar or unipolar winding configuration. It uses software-programmable control algorithms that reduce torque ripple, dampen high-speed resonance, and implements smoother motion during microstepping.
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Position Angle Anti- Setpoint resonance voltage – Step Current Current Resolver Scheduler Loop Bridge Power Motor Controller Stage Generator Phase A & B Current Current Sense Fault Fault Monitor Detection 10 | ni.com | NI 9503 User Manual and Specifications...
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The NI 9503 contains a highly efficient power stage. Two-phase stepper motors come in 4-, 6-, and 8-wire variations. You must wire the stepper motors in a 4-wire configuration as shown in Figure 3. Never connect unused stepper motor terminals Caution to pin 9 (Chassis Ground) or to each other.
Refer to Figure 10 for an illustration of using ferrules. Figure 10. 10-Terminal Detachable Screw-Terminal Connector with Ferrule Terminated Wire Ferrule 20 | ni.com | NI 9503 User Manual and Specifications...
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You can define the User LED (yellow) to meet the needs of your application. Use the User LED I/O node to turn this LED on and off. Refer to the NI 9503 topic in the LabVIEW Help, available by selecting Help»LabVIEW Help, for information about the NI 9503 User LED I/O node.
Hot-Swap Behavior The NI 9503 is always disabled when it is first inserted in the chassis, regardless of whether Vsup is present or not. You can enable the drive using the Enable Drive method in software. Refer to the NI 9503 topic in the LabVIEW Help, available by selecting Help»LabVIEW Help, for more information about enabling the...
• Do not tie the motor case to the NI 9503 chassis ground. • Use only shielded cables to connect the NI 9503 to a motor and a power supply. • Terminate the motor and power supply cable shields to the COM terminal of the NI 9503.
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Figure 12. Installing a Ferrite • Determine the clamp-on ferrite beads to install based on twice the motor cable and Vsup cable diameter. Order the appropriate ferrite beads from NI. 26 | ni.com | NI 9503 User Manual and Specifications...
Vsup greater than 40 V will result in damage Caution to the module. Overvoltage........>32 V Power Requirements Power consumption from chassis Active mode ....... 500 mW max Sleep mode ......... 2.5 mW max 28 | ni.com | NI 9503 User Manual and Specifications...
Channel-to-COM ......0 to +30 VDC max, Measurement Category I Isolation Channel-to-channel ....None Channel-to-earth ground Continuous ......60 VDC, Measurement Category I Withstand ......1000 V , verified by a 5 s dielectric withstand test 30 | ni.com | NI 9503 User Manual and Specifications...
Europe (DEMKO) ......Ex nA IIC T4 Gc Power Supply Requirements Safety and Hazardous Locations Standards The NI 9503 is designed to meet the requirements of the following standards of safety for electrical equipment for measurement, control, and laboratory use: •...
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. 34 | ni.com | NI 9503 User Manual and Specifications...
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. 36 | ni.com | NI 9503 User Manual and Specifications...
(EMC) and product safety. 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 38 | ni.com | NI 9503 User Manual and Specifications...
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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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