TMC5240: Integrated 2.1A stepper motor driver with motion controller from ADI Trinamic
ADI Trinamic's new TMC5240 is a high-performance stepper motor driver IC with an integrated motion controller and serial communication interfaces (SPI, UART) as well as extensive diagnostic functions.
The TMC5240 combines a motion controller with 8-point ramps, a 256µstep indexer and two fully integrated 36V, 2.1A rms H-bridges and lossless integrated current sensing (ICS) with no shunt resistors.
TMC5240 drivers have extensive diagnostic and protection features such as short circuit/overcurrent protection, thermal shutdown and undervoltage lockout.
During thermal shutdown and undervoltage lockout events, the driver is disabled. The position of the motor can be monitored via an incremental encoder input.
The TMC5240 can read and process reference and limit switches directly.
A new feature is the option of using the sensorless StallGuard™ load detection and the load-dependent CoolStep™ current adjustment even in whisper-quiet StealthChop™ mode.
The patented SpreadCycle™- chopper mode is still available for maximum torque.
The ADI Trinamic TMC5240 Stepper Motor Driver ICs provide functions for measuring driver temperature, estimating motor temperature and reading an external analog input.
The drivers are available in 5 x 5mm TQFN32 or 9.7 x 4.4mm TSSOP38 packages.
We hereby present the new, cost-effective WiFi 6 (IEEE 802.11a/b/g/n/ac/ax) solutions WMX7206, WMX7206-F and WMX7207 from Emwicon.
These are 2T2R dual-band WiFi 6 modules with PCIe interface as PCI Mini Card, Half Mini Card and M.2 card. In addition, these modules support Bluetooth 5.2. The modules are based on the RTL8852BE chipset from Realtek.
The temperature range is specified with -40°C to +85°C. Driver support is provided for Linux, Windows and Android.
Furthermore, the three module types have CE, FCC and IC certification. The M.2 variant WMX7207 also offers around 100 other certifications and is therefore ideally suited for global use.
Samples are available from stock.
If you are interested, please contact us and take a look at our website.
Introducing the New Facility/Shielded Room Power Line Filter from AstrodyneTDI
Block Unwanted EMI Signals from Your Shielded Facility
Astrodyne TDI, a global developer, and manufacturer of power conversion and EMI/EMC solutions that protect, enhance, and save lives, introduces the new F Series Facility/Shielded Room Power Line Filters. The new F Series features multiple design configurations including multi-line cabinet-style filter solutions and compact box-style single and dual-line filters.
With attenuation (insertion loss) of 100dB @14KHz to 10GHz by MIL-STD-220, these facility filters comply with the requirements of MIL-PRF-15733 and MIL-STD-810 and are safety approved to UL 1283, CE, and CSA C22.2 #8-13. Astrodyne TDI’s F series filters can also achieve extended insertion loss performance to 40GHz when installed with proper EMI shielding and isolation.
The key design features:
Bleeder resistors are built into each filter line to discharge the capacitor voltage to ground potential during power shutdown
Designed to operate continuously at rated currents and voltages
Withstand a 40% current overload for 15 minutes without degradation
The output compartment is supplied with a non-corrosive EMI-environmental gasket to prevent RF leakage and accommodate maximum isolation between input and output compartments. The input compartment is provided with a moisture-resistant gasket
Current ratings of 20A -2500A for cabinet style design, 20A – 400A for single line compact design, and 20A - 100A for dual line compact design
To ensure peace of mind, Astrodyne TDI has an entire team of field application engineers and in-factory technical experts to provide support through product selection, installation, and testing.
F Series Facility Filters are ideally suited for:
Secure Facilities
Data Centers
Strategic Command Centers
Foreign Embassies
Shielded Rooms
EMI Test Labs
Radio Astrophysics Research Labs
Tibbo PLUS1 Embedded Linux Controller (SP7021)
...with 10 outstanding features:
Developed by Sunplus Technology in collaboration with Tibbo Technology, the Tibbo PLUS1 (SP7021) offers all the elements typically found in modern industrial embedded Linux processors. The PLUS1 offers a wide range of functions for IoT and industrial control applications. A simple microcontroller-like package that requires few external components simplifies the schematic and reduces PCB complexity.
Feature 1: Quad-Core 1GHz Cortex-A7 CPU + A926 + 8051
The Plus1 boasts a quad-core 1GHz ARM Cortex-A7 (CA7) processing unit plus two additional CPU cores: a 202MHz A926 core for executing real-time code and a low-power 202MHz/32KHz 8051 core for system management (including in low-power standby mode). All GPIO lines and peripherals are accessible from all cores of the chip.
Feature 2: Single 3,3V Supply
While many of its competitors require up to three different supply voltages, as well as complex and costly power management ICs, the Plus1 can run off a single 3.3V power source. All additionally required voltages — 1.8V, 1.2V, and 0.9V — are generated internally*. Only a few passive components are needed to complete the power circuits.
* Some limitations apply to the use of the internal 1.2V voltage regulator.
Feature 3: Integrated 512 MB DDR3-DRAM
The Plus1 incorporates 512MB of DDR3 DRAM. This dramatically simplifies the PCB layout — no more copying and pasting known-good DRAM traces from proven PCBs, worrying about trace impedances, or going through costly and time-consuming layout iterations. The DRAM is built-in, and it just works! Integrated DRAM also means that you will be able to reduce the number of board layers to four or even two. Finally, by putting the DRAM into the Plus1, we've made your sourcing work easier: DRAM prices and lead times are famously volatile, so the right parts are often hard to procure — with the Plus1, you have one less part to worry about!
Feature 4: Eight 8-bit 5V-Tolerant I/O Ports + One High-Current Port
The Plus1 has eight 8-bit I/O ports with 3.3V logic levels and 5V tolerance. This simplifies interfacing with real-life hardware and eliminates the need for level shifters and other glue circuitry. 5V tolerance is unheard-of on Linux processors, which usually cannot go over 3.3V and often have even less-convenient 1.8V or 1.2V-level I/O.
The Plus1 also has one more 8-bit I/O port, which has a higher driving current ability and hosts a console UART.
The I/O functions of many of the Plus1 peripherals are routed via a fully symmetrical multiplexor known as PinMux. PinMux allows you to connect any I/O line of any participating peripheral to any of the 64 GPIO lines of eight 8-bit I/O ports
Many Linux processors have PinMux functions, but they are usually minimal and only provide two or three alternative "routings" for each peripheral. The choices available for one peripheral often conflict with the options offered for other peripherals. As a result, developers are forced to play a complex optimization game that leads to uncomfortable sacrifices and convoluted pin mappings. There is no such pain on the Plus1 — any I/O line of any participating peripheral can be connected to any PinMux pin! What's more, PinMux mappings can be altered on the fly and without rebooting Linux.
Feature 6: Two Ethernet MACs
The Plus1 incorporates dual PinMuxable 10/100Mb Ethernet MAC controllers and a built-in transparent Ethernet switch. More and more industrial products require dual MACs to daisy-chain Ethernet devices or to connect two independent networks for increased operational reliability. The Plus1 supports both configurations.
In the switch configuration, the OS will detect a single Ethernet adapter. The built-in switch fabric will transparently route external traffic between the two physical Ethernet ports — no processor involvement required. In the dual-port configuration, the OS will detect two independent Ethernet adapters.
All I/O lines of the MAC controller are PinMuxable and can be routed to any of the 64 GPIO pins managed through PinMux.
Feature 7: Four Enhanced UARTs (PinMux) + one console UART
IoT and industrial control devices always require multiple UARTs, so we paid particular attention to this part of the design. The Plus1 features four identical UARTs with 128-byte TX and RX buffers, automatic RTS/CTS flow control, and baud rates of up to 928Kbits/second.
All I/O lines of all four UARTs are PinMuxable and can be routed to any of the 64 GPIO pins managed by PinMux. There is also an additional console UART with fixed, dedicated TX and RX lines.
Feature 8: Easy-to-Use LQFP Package
The Plus1 is available in an easy-to-use 20x20mm LQFP176-EP package. Unlike BGAs, TQFP ICs are easily handled by humans; for example, they can be hand-soldered during the assembly of board samples. TQFP packaging also simplifies the PCB layout work and facilitates the use of lower-cost, four-layer or two-layer PCBs. This alone leads to substantial cost savings compared to six and even eight-layer boards often needed to accommodate BGA-packaged CPUs! In their simplicity, your boards will look more like a typical "microcontroller" rather than "typical Linux CPU" designs.
Feature 9: Industrial Temperature Range
The Plus1 is an industrial-grade design through-and-through. The chip supports an operating temperature range of -40°C to 85°C and is well-suited for demanding industrial applications.
Feature 10: Feature 10:
When designing the Plus1 , we paid special attention to lowering EMI. It is no secret that some chips create EMI certification problems, which are notoriously difficult to overcome. This is because many IC vendors consider EMI issues to be board and device-level issues, and do not think that combating EMI is their responsibility.
This view is not entirely accurate. A sensible chip design can go a long way toward simplifying subsequent device certifications. We did our homework, and this makes doing yours easier.
Modern, Yocto-based Linux Distribution
Unlike competing chips that often come with outdated Linux distributions (meant only to prove that the IC can run Linux in principle), the Plus1 is supported by a modern, Yocto-based Linux.
Yocto is a widely used framework for managing the pieces that go into a Linux build. According to Wikipedia, the Yocto Project's goal is to "produce tools and processes that enable the creation of Linux distributions for embedded and IoT software that are independent of the underlying architecture of the embedded hardware."
Ten-year Supply Guarantee
The Plus1 was created for industrial applications and devices. We understand that in the industrial space, many products have much longer lives compared to consumer products. Unfortunately, most semiconductor vendors, especially in Asia, primarily target consumer applications and force rapid upgrade cycles of their silicon. To industrial product makers, these rapid upgrades look like "unintelligible flickering" — the pace of change is too fast to even react to it! We understand that, as a designer of IoT and industrial devices, you cannot afford to redesign your product constantly. When you build your product around the Plus1, you choose stability over the "white noise" of other vendors.
And More...
Flash interface Supporting eMMC, SPI NAND, and SPI NOR memories
PinMuxable SD2.0 interface
PinMuxable SDIO (SD2.0) interface (intended for connecting a Wi-Fi/BT module)
Two OTG USB2.0 ports with Linux boot and USB video class support
Four PinMuxable buffered SPI modules
Four PinMuxable buffered I2C modules
Two PinMuxable 4-channel PWM modules
Four PinMuxable timers/counters
Four PinMuxable capture modules
MIPI-CSI camera interface for up to two cameras supporting resolutions up to 1328x864 @ 60 fps
MIPI video interface supporting resolutions up to 1366x768 and 1312x816
HDMI 1.4 video interface for connecting monitors with up to 720p resolution
TFT LCD controller with parallel bus interface (resolution up to 320x240x24)
I2S/SPDIF/PWM audio output for up to five channels
PDM interface for an 8-channel MEMS microphone array
32-bit FPGA bus IO (FBIO) interface
Temperature sensor for estimating the internal temperature of the IC
Real-time clock (RTC) with an alarm (system power on) function, dedicated backup power input. and backup battery (supercapacitor) charging circuit
128-byte one-time programmable (OTP) memory carrying vendor/device IDs, two registered MAC addresses, as well as providing 64-byte space for user data
SWD and JTAG debug interfaces
Watchdog timer
Secure boot: boot image verified by ED25519 algorithm
Evaluation & Test : LTPP3(G2) Evaluation Board mit PLUS1 (SP7021)
Real Time Ethernet Gateway – Stack on Module-SoM
The SoM (Stack on Module) is a ready-to-use, pre-certified dual-port Ethernet module solution currently available for the real-time protocols PROFINET RT, EtherNetIP, EtherCAT, including an embedded 2-port Ethernet switch with further internal port for bus and ring network topologies.
The SoM RIN32M3 integrates a Renesas microcontroller running a protocol library supporting various types of real-time industrial Ethernet communication protocols. With a well-documented generic API (Application Programming Interface), the protocol library can be easily accessed by an application processor in order to exchange real-time network data with the user application via a lean SPI module interface.
Based on a RIN32M3EC CPU in combination with PORT's GOAL technology, this SoM offers PROFINET, EtherNetIP, EtherCAT on board. Simply connect via the SPI of your host controller and your applications are multi-protocol capable.
The generic API is an abstraction platform for real-time communication and offers scalable multi-protocol solutions such as PROFINET RT, EtherNetIP and EtherCAT. The external application processor has full control over the protocol stacks running on the module CPU without interfering with the modules' real-time communication or wasting CPU power to the host processor.
The currently available Industrial Ethernet protocols PROFINET RT, EtherNetIP, EtherCAT implementations correspond to the latest specification releases. An extensive tool chain consisting of evaluation boards (module and application processor), API source code and host application examples including extensive documentation makes integration into your target application environment very easy. All of this enables users to have a lean and independent connection to existing or new applications, products and networks while at the same time accelerating the time to market.
The advantages of SoM-RIN32M3:
nexpensive and easy to integrate
one module for all market-leading real-time communication systems
open interfaces for more flexibility in the connector area
works with RJ45, M12, M8 or MiniIO
extensive range of tools for administration and integration makes the design very efficient
Integrated update service - you always get the latest firmware
Integrate the popular Raspberry PI single-board computer into networks such as PROFINET, EtherNetIP and EtherCAT - no problem with the Raspberry PI expansion board from port.
The Raspberry PI Industrial Ethernet Extender with SoM-RIN32M3 Easy integration into your systems.
The already integrated SPI-LINUX driver enables very easy integration and commissioning. The software package also provides useful tools (such as the management tool) for configuration and integration. In addition, a design tool for creating and managing object files is optionally available.
If you register the Raspberry PI Industrial Ethernet Extender after purchase, you will receive updates and upgrades for the integrated tool and the stacks for free. We will inform you automatically. So you are always up to date. The certifications for PROFINET and EtherNetIP should therefore no longer pose a major problem.
The ARDUINO/PMOD-Board is available for evaluating the SoM-RIN32M3
Based on the ARDUINO/PMOD-Board, there are also the following complete evaluation systems:
ARDUINO – PMOD Board for RENESAS Synergy S5 / S7
ARDUINO – PMOD Board for STM32F4 (Nucleo)
ARDUINO – PMOD Board and Raspberry-Pi (LINUX)
ARDUINO – PMOD Board for LINUX
1700 V-Rated InnoSwitch3-EP ICs with SiC Switches Simplify Industrial Flyback Power Supply Designs
Suitable for industrial markets, these 1700 V-rated devices replace discrete controller-plus-MOSFET designs, saving space, time and cost while increasing reliability in applications such as renewables, industrial motor drives, battery storage and metering. SiC-based InnoSwitch3-EP ICs deliver up to 70 W of output power while reducing the number of components required to implement a power supply by up to 50%. The inclusion of synchronous rectification and a quasi-resonant (QR) / CCM flyback controller achieves greater than 90% efficiency and less than 15 mW no-load consumption.
Light Pipe Protection for Rugged Harsh Environments
The need for product illumination is increasing as design engineers develop technology products used in new and different internal and external locations. Designers require various levels of protection to ensure circuitry is safe and will perform continuously. Bivar IP Rated Light Pipe products and systems solve problems and offer design options for strength and protection from the ingress of particulates, electrostatic discharge, vibration, and physical impact.
IP stands for Ingress Protection which is a system for classifying the degrees of protection provided for electrical equipment that has been developed by the European Committee for Electrotechnical Standardization (CENELEC). These standards are designed to numerically rate an electrical product on the level of protection its afforded. The classification is represented by the prefix, IP, along with two numbers. The first number is for protection against solids while the second number is for protection against liquid.
See how Bivar can help you plan in the early stages of design to get the most from your product illumination.
Common Feature Definitions
Sealing Ring: Made out of Polyurethane with a hardness shore D60. Similar to a hard rubber.
Sealing Gasket: Made out of an open cell urethane than can experience more compression than our sealing ring. Similar to a soft squishy material.
Threaded with Mounting Hardware: Hex nut and lock washer.
IP54: Offers dust protection and protects against splashing of water from all angles.
IP67: Offers complete dust protection from airborne particles while also protecting against water for up to 30 minutes at 1 meter depth.
IP Rated Rigid Light Pipes: Panel Press-Fit
RHD IP67 heavy-duty threaded retention for maximum protection in industrial-grade applications.
Available in 6mm or 9mm front-mount lens size.
Vertical and right-angle configurations.
Ideal for space-constrained spaces inside enclosures and on PCB’s.
Range of lengths and lens colors.
Use with panel thickness 0.059 in. (1.5mm) to 0.236 in. (6.0mm)
Hardware included.
SGLC IP68 Rated Sealing Gasket Lens Cap designed to provide ingress protection to LED status indication for applications exposed to harsh environments.
Available in 3mm lens diameter.
Fits into a .265 in. (6.7mm) round panel cutout.
Available in low-profile dome and flat
Use with panel thickness .118 in. (2.56mm) and .250 in. (6.35mm)
Fresnel lens style with color (blue, green, red, yellow) lens options.
PLTR Rigid Front Mounting Press Fit light pipe includes threaded retention so when properly tightened with a torque wrench will provide a secure fit for harsh environment protection.
Available in 3mm or 5mm front-mount lens size.
Lengths from .25 in. (6.4mm) to 3.0 in. (76.2mm)
Includes black or white polyurethane sealing gasket.
Use with panel thickness 0.047 in. to 0.093 in.
Hardware included. Torque 6-7 in-oz.
PLP5 Rear-mount 5mm lens size round shaped single station short distance light pipe.
Rear-mount 5mm lens size. Domed or flat lens appearance.
Lengths from .125 in. (3.2mm) to 1.50 in. (38.1 mm).
Helps protect sensitive components from ESD.
Use with panel thickness .047 in. to .093 in.
Diffused, smoked, and color (blue, black, green, gray, red, yellow) lens options.
PLW5 Wide-capture lower body provides micro-lens to capture and emit more LED light..
Available in 5mm front-mount low-profile lens size.
Lengths from .125 in. (3.2mm) to .5 in. (12.7mm).
Use with panel thickness 0.047"- 0.093".
Diffused, smoked, and color (blue, green, red, yellow) lens options.
IP Rated Flexible Light Pipes – SMD LED Systems
SZ IP54 IIP54 ZeroLightBleed™ adapter system for Bivar SMD LED and flexible light pipe.
3 mounting options: Surface Mount, Firm Retention, Post Retention
Adapter with splash-guard built-in SMD LED option. Available in single and multi-color.
Reinforced packaging ideal for rugged environment applications.
Available in 1mm, 2mm optical fiber diameter. Length 1.00 in. to over 100 ft.
First Industrial Capable WiFi 6 / 6E Tri-band Module
Module Solutions
WPEQ-268AXI(BT)
WNFQ-268AXI(BT)
Chipsatz
Qualcomm Atheros WCN6856
Qualcomm Atheros WCN6856
Wi-Fi
Wi-Fi 6/6E DBDC
Wi-Fi 6/6E DBDC
Bluetooth
Bluetooth 5.2
Bluetooth 5.2
Interface
PCIe/USB
PCIe/USB
Form factor
Half Size Mini Card (TBD)
M.2 2230 E-Key
MIMO/Antenna
2T2R
2T2R
Frequency bands
2412-2484 MHz 5150-5850 MHz 5925-7125 MHz
2412-2484 MHz 5150-5850 MHz 5925-7125 MHz
Bandwidth
20/40/80/160 MHz
20/40/80/160 MHz
Certification
CE, FCC (TBD)
CE, FCC (TBD)
Product images WPEQ-268AXI(BT) and WNFQ-268AXI(BT)
First Industrial Capable WiFi 6 / 6E Tri-Band
The Tri-band solution from Qualcomm brings DBDC features to M.2 2230 and Half Mini PCIe formfactor. WNFQ-268AXI(BT) / WPEQ-268AXI(BT) are powered by latest Qualcomm WCN6856 chip, provide industrial lifecycle, industrial temperature capability, and true SparkLAN technical support.
ADI Trinamic FOC Auto-Tuning-Tool
Auto-Tuning Speeds Up Motor Drive Commissioning
For whitepaper download, please scroll down to the bottom.
With smart motor drives that boost productivity and improve operational costs even further, Industrial Automation is empowered by intelligence at the edge. This means more and more data is processed at the edge, including sensors, cameras, and actuators, taking low-level, real-time decisions while providing aggregated data for higher controls.
For actuators to gather and process data at the edge, it is important that the system has a clear picture of normal operating conditions. Take friction for example. If a conveyor belt is running without a component on it, the actuator experiences a certain amount of friction which is affected by several factors including length and weight of the belt itself. But what if this friction increases? Does it indicate possible wear and tear within the system, or is it simply because several components were placed on the belt? Tuning motor controllers is a fundamental step for generating a clear picture of normal operating conditions, one that can be sped up with the correct tools.
Why Do We Need Auto-Tuning?
First, of all motor drives, those using field-oriented control (FOC), or vector control, arguably offer the highest performance. Tuning FOC, however, can be laborious and puts a huge strain on resources during application development. In particular, tuning the P and I parameters require expert know-how. Not only during initial setup, also when the application’s parameters need to be adjusted to meet consumer demands.
Second, the frontier of Industrial Automation is marked by increasingly complex machines where drive systems and sensors at the edge are gathering information and interacting with each other. This increases overall complexity, pulling resources away from other aspects including motor and motion control in favor of development of the application and hardware abstraction layer. Moreover, increased complexity adds factors taken into account when tuning the motor, thereby putting more strain on the Engineer tuning the controller.
Third, with increased interaction and complexity of the machine, a new generation of machines is introduced at the frontier of Industrial Automation. A generation that comes with “a built-in fail-safe mechanism that automatically detects an operational problem preventing it from completing its assigned task. It then initiates steps to temporarily transfer its given task to other machines in the work cell until the faulty machine can be repaired.”
The fourth argument for auto-tuning is to quickly compensate for manufacturing tolerances in series production. Even with improved assembly lines, not every machine will be 100 percent according to spec. Correcting a motor drive for the system’s deviation originating from the assembly line would, again, put a huge strain on resources. That is, of course, if there’s no auto-tuning tool offered for the motor controller.
Finally, auto-tuning tools further democratize technology and therefore boost innovation. Already since years there’s a visible trend where electronic components are becoming cheaper. Take for example high-quality BLDC motors, once exclusively used for high-end machines until drones went commercial and BLDC motors became a mass product. With lowered component prices, these parts suddenly became interesting in other fields as well, boosting product development and breakthroughs in other devices. By making not only the components, but also the know-how more accessible, tools automating motor controller tuning give another impulse to innovation. Either because it makes new technology accessible to those companies who wouldn’t be able to implement it otherwise, or because it frees up precious resources including experts who can now focus on ground-breaking features and devices.
Auto-Tuning a BLDC Drive
The first step of auto-tuning a BLDC drive is similar to manually tuning one, which is identifying the tuning parameters for PI controllers in the application. These tuning parameters vary per application and can even vary within an application per working point. Examples are maximum torque and speed, which are dependent on the motor load, and positioning. For identifying and optimizing these parameters, the real setup is needed – or a realistic model of the electromechanical system which takes all factors into account. The benefit of such an approach, compared to tuning PI controllers on the bench, is that external parameters are considered as well. These include backlash, friction, and inertia to name a few.
One way of identifying these parameters and finding the application limits is using a test signal injection and correlation. Simply put, you send a test signal through the system, measure the output and feed it to an algorithm, which then calculates the optimal parameters. Once calculated, this will be fed through the system again for a plausibility check, validating the calculated parameters. However, there is another method of identifying these parameters, following the more practical approach of traditional manual tuning done by experts.
Figure: Simplified visualization of test signal injection and correlation
Intuitive Auto-Tuning
To speed up motor drive commissioning, Trinamic developed a graphical tuning tool for their latest generation of modules using the integrated servo controller IC TMC4671. This tool is available free of charge in Trinamic’s integrated development environment (TMCL-IDE), with the main goal to tune the P and I parameter of the cascaded motor control structure automatically.
This tuning process works as follows: at first, the parameter of the FOC current loop, secondly the velocity and finally the position control loop are tuned. During the tuning process, step or ramp inputs to the drive’s cascaded control loops are applied. The response is measured in the module and the TMCL-IDE tool iteratively increases the controller gains to optimize the tracking performance and dynamics. The tool guides the user through this process step-by-step and the engineers can monitor the result of each iteration. Ideally, the setup is tuned within the application and the motor can rotate freely.
At first, the parameter of the FOC current control loop, as the most inner and faster loop, are optimized. Therefore, a step generator for the target current applies defined current steps to the FOC controller. The value of the step can be chosen according to the operation point of the user’s application. The tuning tool visualizes the target values and the responses and uses the data to decide how to enhance the controller behavior. It then updates the FOC current loop P and I parameter automatically until a minimum controller error is achieved and the current loop tuning process finishes.
The second step is the tuning of the velocity control loop. During this process, the velocity ramp can be used, and the acceleration can be set according to the application needs. The user can select the target velocity to which the P and I parameter of the velocity control loop should fit best. Then, the signal generator in the tuning tool generates target velocity steps. The actual velocity response of the motor is measured, and the P and I parameter are updated constantly. After the velocity error has been minimized, the velocity auto-tuning is completed.
As a final step, the position control loop P parameter will be optimized. Therefore, the motor performs target position steps, the actual position is measured, and the tuning algorithm adjusts the P parameter until a minimal position following error is derived.
The resulting P and I values from the auto-tuning process can also be tested and adjusted in the manual mode of this tool. In this mode, continuous step responses for the position, velocity, or current loop can be simulated and the resulting actual values of all controllers can be monitored and used to adjust the P and I parameter on the fly.
Figure: Auto-tuning with the TMCL-IDE
For machines to independently adapt its performance parameters and complete an assigned task, or re-configure themselves for optimized behavior based on input from a productivity enhanced AI observer algorithm, auto-tuning is the only option. This can be achieved by monitoring and auto-tuning the P and I values derived from the three cascaded FOC loops used to optimize the drive’s torque-flux current loop, velocity loop settings, and its positioning loop parameters. Perfect tuning of controllers, therefore, will no longer be defined by its settings during initial setup. Instead, it requires constant monitoring and adaptation.
With the intuitive auto-tuning tool, Trinamic’s latest generation of motor drives take a first step of becoming smart systems, eventually paving the way for the self-aware machines marking the next revolution in Industrial Automation. Auto-tuning will prove to be crucial for this next breakthrough, both for initial setup and for re-configuration of equipment to optimize its behavior. By continuously monitoring torque, velocity, and position parameters and comparing these to a model, the drive adapts or flags incoherent data. As such, the actuator becomes an additional sensor, empowering intelligence at the edge.
Figure: Auto-tuning is a fundamental step to self-awareness
Revolutionizing Industrial Automation Through Auto-Tuning
The next evolution of Industrial Automation brings self-aware machines for maximized productivity, extended operational lifespan, and reduced maintenance costs. This calls for motor and motion controllers with a high level of integration that can determine if everything behaves accordingly or if performance parameters need to be changed on the fly by reconfiguring themselves. Once tuned to perfection via auto-tuning, motor controllers can monitor for both internal issues, such as wire breaks or degraded power stage impedance, and external processes affecting the application’s behavior such as friction, inertia, temperature, and backlash.
By not only using the data gathered at the edge for auto-tuning purposes but aggregate it together with data from external components in data packets that are distributed throughout other machines on the factory floor, Industrial Automation takes an important step into the future. Think of machines working together in a manufacturing cell. Each machine has been assigned a specific task in the assembly line needed to produce a product. If a machine in this cell experiences a problem performing its specific task, then the production line would shut down until it can be serviced. Now let's imagine this same scenario using machines that are self-aware enabled. In this scenario, the other machines in the manufacturing cell would realize one machine is not performing its task and then automatically off-load the specific function of the problematic machine temporarily to the other machines in the cell to keep the production line running until a technician is available to fix the problematic machine. Auto-tuning may seem like a small step. With Trinamic, however, it’s the first step to self-aware machines.
If you have questions regarding ADI Trinamic's Auto-Tuning please contact:
Guido Gandolfo, Product Line Manager Motion Control +49 5424 2340-57 ggandolfo@mev-elektronik.com
New – 7 GHz Low Pass Filter (Kopie)
Atlanta Micro introduces a passive lowpass filter implemented on chip that provides low loss and high rejection in a small 4mm package. With a cutoff frequency of 7 GHz and stopband rejection of >50 dB to 20 GHz, AM3046 is useful for image, LO, and spur rejection. AM3046 is matched to 50 ohms and operates from -40C to +100C.