Motion Control Technology
Motion control is the control of position, speed, and acceleration that enables today’s highly automated physical world. Whenever an object needs to be in the right place at the right time, it requires motion control. Because real objects are being moved, motion control technology requires precision and reliability more than most other disciplines. ADI Trinamic motion control technology provides high precision, high reliability solutions to support these unique demands.
Silent. Smart
The most advanced and most silent 3D printer manufacturers rely on superior current control from ADI Trinamic technology.
Precise. Reliable.
Automation needs repeatable and dependable positioning. ADI Trinamic technology leverages a decades-long legacy in high-quality motion control output.
Efficient. Responsive.
Dynamic motors have the highest requirements for fast current control. With dedicated servo controllers, ADI Trinamic technology makes high end control easy to implement and easy to use.
Smooth. Dependable.
When a motor becomes part of the human body, it has to be as smooth and dependable as a muscle. ADI Trinamic technology helps to reduce inequalities and improve performance in essential medical devices.
Flexible. Durable.
Automated intralogistics and robotics require durable and reliable motion and motor control. ADI Trinamic solutions have been tried and true over the span of decades.
Ramping Up Performance with ADI Trinamic Technology
ADI Trinamic ramp generators offload the MCU by taking care of pure motion control itself. By regulating the position, velocity, and acceleration of actuators like electric motors and their load, ADI Trinamic motion control technology optimizes control of movement with ramping profiles that deliver the best performance for your motion control needs, even for demanding applications moving multiple, synchronized axes.
Why Use Ramping Profiles?
The simplest way to drive a load is by using a constant velocity. Since such a velocity mode has no defined acceleration phase, the theoretical acceleration value is infinite for an immediate constant velocity. However, both the system and load have a time-finite behavior that must be accelerated to the required velocity. As a result, there are inconstant time delays for acceleration depending on the system and the load.
Because of the relationship between velocity and distance, precise positioning is not possible without making further adjustments. Even more, if the difference between the target velocity and the actual system velocity is too big, the motor may stall or overshoot.
Ramping profiles account for the difference between theoretical velocity ramps and the real physical world. ADI Trinamic motion control technology offers a variety of ramping profiles, from trapezoidal to S-shaped ramping, for handling precious liquids. Ramping is embedded in our motion control peripherals to offload the processor while giving best-in-class performance.
Trapezoidal Ramping
A trapezoidal ramp predicts the acceleration rates by using a constant gradient. This leads to a linear increase and decrease of the system’s velocity, whereby one constant gradient rate is used for acceleration (aMAX) and one for deceleration (dMAX) to the maximum velocity (vMAX). With this constant gradient, the inconstant time delays can be calculated precisely and taken into account. For the great majority of positioning applications, linear ramping profiles are sufficient. ADI Trinamic motion controllers with linear ramping allow for fast and accurate positioning of one or several axes, offloading the MCU from demanding real-time tasks.
Segmented Ramp
By adding a freely configurable start/stop frequency to linear motion profiles, segmented ramping allows for faster positioning and mitigates the resonances caused by trapezoidal ramping. In addition, the velocity ramping profile adds a reduced acceleration value at high velocity, which reduces jerking at the end of standard acceleration ramps. Once the target position is reached, the motor waits for TZEROWAIT clock cycles to make sure all oscillations are gone from the mechanical system, allowing for faster positioning through additional acceleration segments.
Acceleration and Deceleration Segmented
- Segmented ramps bring flexibility to velocity profile shaping.
- Adapt the velocity profile to the torque/speed curve and limit jerking.
- Reduce time-to-target for positioning applications.
S-Shaped Ramping
Especially when handling liquids or precious goods, it’s important to have smooth motion control avoiding any resonances. To achieve this, a gradual change of the acceleration parameter (a) is needed. Such a gradual change, or bow parameter, reduces mechanical vibrations to a minimum by eliminating overshoot problems of the motor. Furthermore, high torque with high velocities can be reached by calibrating the bows of the velocity ramp, allowing you to optimize the profile according to your application. The resulting profile with continuous acceleration and deceleration reduces any sudden movement to make every drop count.
Ramp Calculator
The TMCL-IDE makes es easy to tune and calculate motion proflesin with Evaluation Kits, Modules and PANdrives.