Need a Step Motor for the Medical Industry? Here’s What you Need to Know
When selecting a step motor for an application in the medical industry, many factors need to be considered. Although the requirements for step motors vary from application to application, some requirements should be generally considered as a rule of thumb.

What is the difference between holding torque and dynamic torque?  PJ, San Jose, CA

What is the difference between rated current and peak current?  Melissa, Miami, FL

What voltage should I use?  Andrew, Modesto, CA

SilverPak 17D—Ultra Sleek, Low Cost, & RoHS Compliant Integrated Motor

Santa Clara, CA—May 2008—Lin Engineering, the Step Motor Specialists, are pleased to announce the release of the RoHS compliant version of their popular SilverPak 17D product line.  The SilverPak 17D is a high torque, 2 phase, 1.8 degree NEMA 17 step motor with an integrated microstepping driver that delivers high performance in a small package.
The SilverPak 17D is designed to help reduce overall design time and system cost for a wide array of step motor applications needing high torque and smooth motion.  It is available in three body lengths: 2.69”, 2.92” and 3.24” and is capable of up to 85 oz-in of holding torque depending on the stack size of the motor.  The SilverPak 17D also features:

• Operating Voltage range from +12 to 24 VDC
• Phase Current Range from 0.25 to 2.0 Amps Peak
• Step Resolutions from Full stepping to 16x microstepping
• Optically isolated step, direction, and disable/enable inputs
• Under-voltage and over-temperature protection

Its ultra sleek design, ease of use, and consistent high quality make it a great choice for a wide variety of step motor applications.

R256-RO—Higher Performance Driver + Controller, RoHS Compliant

Santa Clara, CA—March 2008—Lin Engineering, the Step Motor Specialists, are pleased to introduce the RoHS compliant version of the popular R256 Microstepping Driver/Controller. 

The R256-RO is capable of step resolutions ranging from 2x to 256x, operates from +12 to 40 VDC and its phase current ranges from 0.1 to 2.0 amps peak.  The R256-RO features fully programmable ramps and speeds, software selectable hold and move currents, two user configurable digital I/O’s; and two dedicated inputs – one optical sensor for homing and one switch closure to ground.

Commands can be issued from the Windows® based HyperTerminal® program or from Lin Control, Lin Engineering’s new Graphical User Interface created exclusively for the R256-RO.  The commands are intuitive yet simple and can be preset to execute upon power up.  With the ability to store up to 16 different programs at once using the built-in 4 kBytes of memory the R256-RO can be used as a stand alone unit with no PC connection required.

Please visit the company website at www.linengineering.com for more technical specifications as well as downloadable Lin Control program, quick reference guides, and R256-RO manual.

R701/R710- Powerful Microstepping Drivers now RoHS Compliant!

Santa Clara, CA—August 2007—Lin Engineering, The Step Motor Specialists, are pleased to introduce the RoHS compliant version of their popular R701 and R710 drivers.   
These bipolar step motor drivers operate from 24 to 80 VDC and supply phase currents ranging from 1 to 7 amps.  The drivers also features 10x microstepping, selectable current reduction of 33%, a step frequency of 200 kHz and optically isolated step, direction, and disable/enable inputs. 
For users needing less vibration and smooth performance, the R701 and R710 boast an onboard trimpots that can be adjusted to alter the current waveform coming out of the motor and going into the step motor coils.  This adjustment will decrease the amount of noise and vibration coming out of the motor enabling for smooth motion.