TMC4570 pages

TMC457 – DATA SHEET
S-profile motion controller with PID feedback
control and high resolution micro stepping
sequencer for stepper motors and piezo motors

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TRINAMIC Motion Control GmbH & Co. KG
Sternstraße 67
D – 20357 Hamburg
GERMANY
www.trinamic.com

1 Features
The TMC457 is a high end single axis micro stepping motion controller. It adds to any microcontroller
TM
or processor with SPI (SPI is Trademark of Motorola) interface. It is intended for applications, where
a precise and fast, jerk-free motion profile is desired. An encoder can be added for extremely quick
and precise positioning using the internal hardware PID regulator and provides for increased reliability /
fault detection. The high-resolution micro step sequencer directly controls stepper motors and piezo
motors. Wide range motion control parameters eliminate any “gear switching”. The TMC457 supports
linear velocity ramps and S-shaped velocity ramps. For maximum flexibility all motion control
parameters (target position, target velocity, acceleration, deceleration and bow) can be changed any
time during motion.
Highlights
• S-shaped and linear ramps with on-the-fly alteration of all parameters
• Programmable high resolution sequencer with (12 bit, 8192 entry) micro step look-up table
• Incremental encoder interface with flexible up- and down scaling to match drive resolution
TM
• Fast and stable easyPID PID controller
• 32 bit registers – from mHz to MHz / from nanometer to meter
• SPI interface to microcontroller
• Reference switch processing / virtual stop switches (programmable soft limits)
• Step / direction output (with programmable timing)
• Position pulse output to trigger external events
• Synchronization of multiple axis via scalable step / direction input
• Direct interface for TMC246/TMC249 family stepper motor drivers supports StallGuard™ (pat.)
• ChopSync™ (pat. fil.) built in for best motor velocity range
• Analog high resolution motor driver control via external dual 12 bit DAC
• Automatic load angle limitation using encoder for stepless servo behaviour
Types of Motors
• Two phase stepper motors (direct sequencer support)
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• PiezoMotors (direct sequencer support for PiezoMotor’s PiezoLEGS motor)
• Any type of motor via step/direction interface
Applications
• Medical and laboratory equipment with high speed motion e.g. for liquid handling
• High end placement and positioning systems / High reliability drives
• Sub-micrometer positioning (piezo motors)
• Active stabilization with incremental encoder and fast PID regulator