Product Overview
NI SMD-7615 Step Motor Driver with Ethernet, Encoder Input and Step/Direction Control
Condition
Used, in excellent condition. No signs of prior use, mounting or wear, and the history is unknown. Markings legible: National Instruments SMD Step Motor Driver, 749501-01, SMD-7615, barcode label 1039856, Made in China, RoHS, CE.
Ships same or next business day from our Idaho warehouse. Selling online since 1999.
Product Overview
National Instruments built the SMD-7615 as an Ethernet stepper drive for its SoftMotion platform. It accepts step and direction pulses or commands over Ethernet, reads an incremental encoder for position verification, and drives a two-phase step motor at up to 5 A per phase. The DB-25 carries the step, direction, limit and general purpose I/O, and the front-panel LEDs flash fault codes printed on the case.
Key Features
- Output current 0.1 to 5.0 A per phase, peak of sine
- Supply 18 to 53 VDC
- Ethernet communication
- STEP and DIR inputs, 5 V logic, optically isolated, up to 2 MHz
- Encoder input on HD-15, with +5 VDC encoder supply
- DB-25 I/O: 8 digital inputs including CW and CCW limits, 4 digital outputs, 2 analog inputs
- Six-position motor and power plug marked A+, A-, B+, B-, V+, V-
- Green and red status LEDs with the fault code table printed on the case
Applications
- Replacing an SMD-7615 on an NI SoftMotion axis without rewriting the motion code
- Driving a step motor from a PLC or controller through step and direction
Frequently Asked Questions
Does it need NI software?
It can take plain step and direction pulses. Configuration and Ethernet control run through NI software.
Is the power and motor plug included?
Yes, the six-position plug is fitted to the drive.
What am I getting, and what am I taking on?
A used SMD-7615 with no history behind it. Flat-rate shipping in the lower 48, and orders over the free-shipping line ship free.
NI no longer builds this drive, and plenty of SoftMotion axes still expect one. If yours is one of them, this is the part that lets the program run as written.
