Anonymous Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
UMI-4A Request for Availability
UMI-4A, 4-axes, Universal Motion Interface Accessory
Rated 4.8/5 | 7 ratings
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
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✔ NIST Calibration Available
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 UMI-4A Universal Motion Interface Accessory
The UMI-4A is a Universal Motion Interface Accessory. The NI UMI-4A is produced by National Instruments. The UMI-4A belongs to the family of universal motion interface (UMI) devices launched by National Instruments. The UMI-4A is a connectivity accessory that is used with motion control boards. The National Instruments UMI-4A is built with four independent axes. The UMI-4A connects NI plug-in motion control boards to power supplies, encoders, servo amplifiers, stepper drivers, limit switches, and motors.
The NI UMI-4A is equipped with a DIN-rail mounting base. This Universal Motion Interface Accessory makes field wiring easier with individual limit switch, encoder, and amplifier/driver removable screw terminal blocks for each axis. These terminal blocks do not involve any special tools for wire installation because they are standard terminal blocks for the industry.
The UMI-4A can be linked to ValueMotion boards with a 50-pin interface cable. Several compatible cables include the SH50-50 shielded cable, NB1 ribbon cable, and SH68-68-S shielded cable and 68M-50F Step Bulkhead Cable Adapter. A 5 V power supply is also required for this Universal Motion Interface Accessory. In addition, an auxiliary power supply can be optionally used.
This Universal Motion Interface Accessory is equipped with a host bus monitor power interlock. This feature automatically disables the amplifiers when the interface cable is disconnected or if the host computer shuts down. There are two I/O connectors on the National Instruments UMI-4A. The first connector is a 34-pin male box header and the other type is two 6-pin removable screw terminal blocks.
UMI-4A Obsolete Status has been announced by National Instruments, but the Universal Motion Interface Accessory will still be available for purchase and repairs by Apex Waves.
| Model | UMI-4A |
|---|---|
| Manufacturer | National Instruments |
| Type | Universal Motion Interface Accessory |
| Axes | 4 |
| Inputs | Quadrature with index |
| Voltage Range | 0 to 5 VDC |
| Power Requirement | +5 VDC: 0.2 amps + user-defined encoder power |
| Aux. VDC | User-defined limit switch power |
| Output Current | 60 mA sink max. |
| Dimensions | 9.3 by 3.95 in. |
| Warranty | 2-3 Year Warranty |
| UMI-4A Manual | User Manual and Maintenance Manual Available for Download |
| Price | Contact a sales representative for a quote. |
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