A high-performance, low-cost microstepping drive
28 April 2013
Exclusive to Mclennan, the Applied Motion Products (AMP) STR2M low-cost, 2-axis microstepping drive for use with pulse and direction or CW/CCW pulse control, has simple dip-switch parameter set-up and many features found on much more expensive drives.
These include a load inertia matched anti-resonance facility for optimal dynamic performance, and automatic idle-current reduction for increased efficiency through motor heat reduction.
Along with 5 – 24Vdc opto-isolated I/O for pulse, enable and fault, the drive also includes microstep emulation which allows smooth microstepping motion from low pulse/rev frequency input; and its digital filter prevents position error from command signal electrical noise.
With volume pricing set at extremely competitive rates, the drive will suit OEMs and machine builders looking to automate simple processes using PLCs, PACs or pulse generating motion controls - with smooth and precise open-loop motion.
The STR2M has user selectable motor current from 0.25A to 2.2A/phase from a 12 to 48Vdc externally supplied power source; allowing typical use with 4- and 8-lead stepper motors from NEMA size 17 to 23 with an upper stall torque capability of around 1.3Nm for a three-stack size 23 motor. Sixteen switch selectable resolutions allow microstepping from 200 to 25,600 steps/rev.
For drive commissioning, a simple self-test switch sets the motor in a forward/reverse mode whilst status LEDs display faults for motor connection, temperature, current and voltage which trigger the fault output and shut down the drive.
The drive is also protected for over- and under-voltage as well motor/wiring short circuits. For applications where rapid start-stop is anticipated, a separate regeneration clamp is available. Measuring just 56 x 93 x 21mm, with screw terminal connectors the compact drive is easily installed.
Contact Details and Archive...