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July 2025
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NI-9503, 20 kHz, PWM Stepper, C Series Motor Drive Module
Rated 4.9/5 | 19 ratings
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
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Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
National Instruments NI-9503 C Series Motor Drive Module
The NI-9503 (Part number: 783285-01) is a C Series Motor Drive Module. It is designed by National Instruments. The NI-9503 is a single-axis motor drive module which enhances integrated stepper motion control of a system without any assistance from a connector block or external power drive. The NI 9503 delivers unified motion assimilation through a control platform and proven measurement. The NI 9503 is structured with an innovative PWM system. This PWM system decreases the torque ripple at a speed of about 1 RPS. It decreases the power loss and the resonance as well. This system improves the micro-stepping. The NI 9503 is directly connectable to unipolar hybrid stepper motors and can connect directly to two-phase bipolar hybrid stepper motors. The device has a motor DC power supply of +9 to +30 VDC, a PWM frequency of 20 kHz, and a current per phase of 3 A RMS (4,24 A peak).
The NI 9503 module is compatible with the LabVIEW FPGA module. It returns the bus voltage and motor current to the LabVIEW FPGA module. It has applications in the PI loop of the current and anti-resonance processes. The NI 9503 also has the capability to control the resonance of the stepper motor. The user can reduce it to 2 RPS. The anti-resonance algorithm permits a stepper motor to use more torque. As a result, the module will run at a greater speed without hedging.
The NI 9503 is featured with software-programmable micro stepping. Micro stepping creates smaller steps by dividing full steps and allows the user to achieve a smooth motion. The NI 9503 supports a micro stepping rate up to 256. A resonance can happen at full stepping; it helps decrease the vibration and torque.
The NI device weighs 5.1 oz. It has a recommended operating temperature range of -40 to 70 °C, a storage temperature range of -40 to 85 °C, operating and storage humidity ranges of 10 to 90% RH and 5 to 95% RH respectively, and random and sinusoidal operating vibrations of 5 grms and 5 g – all at a frequency range of 10 to 500 Hz.
| Model | NI-9503 |
|---|---|
| Manufacturer | National Instruments |
| Part Number | 783285-01 |
| Type | C Series Motor Drive Module |
| Motor DC Power Supply | +9 to +30 VDC |
| Input/Output Type | PWM |
| PWM Frequency | 20 kHz |
| Current per Phase | 3 A RMS |
| Weight | 5.1 oz. |
| Warranty | Three Year Warranty |
| NI-9503 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Contact a sales representative for a quote. |
Associated part numbers for NI-9503:
National Instruments NI-9503 Frequently Asked Questions
Question: What is the PWM frequency of the NI 9503 module?
Answer: The PWM frequency of the NI 9503 module is 20 kHz.
Question: What are the power requirements for the NI-9503?
Answer: The power requirements for the NI-9503 are 500 mW maximum in active mode and 2.5 mW maximum in sleep mode.
Question: What is the phase inductance for the NI 9503?
Answer: The NI 9503 has a minimum phase inductance of 1 mH and a maximum phase inductance of 20 mH.
Question: Does the NI-9503 require any accessories?
Answer: No, the NI-9503 does not require any accessories, but it can be used with the Connector for 10-Position Connector Blocks for NI-950x High Current.
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