Buying a Stepper Motor Driver

When purchasing stepper motor drivers, also called controllers, several factors must be taken into consideration. Buyers should make sure that the motor is compatible with the driver, as there are several different types. The number of wires in the motor determines whether a bipolar or unipolar driver is required. Maximum current input and output of the motor also impact which servo driver to purchase, as do features such as step modes, step frequency, and protection circuitry. There are numerous types of stepper drives available, each with advantages and disadvantages. Choosing the right kind of driver depends on the type of task the stepper motor will be applied to, as well as the step mode requirements. Here recommend you Brand stepper drive by Fasttobuy.com.

The Leadshine Stepper drive's performance comes from its powerful 32-bit DSP processor and associated control algorithms. These achieve smooth performance at low speeds by significantly minimising fluctuations from the desired motor speed. The Leadshine stepper drive can also calculate the natural system frequency and apply a damping function to eliminate resonance. This yields higher speed and better motor performance; it also optimises torque and eliminates mid-range instability. And by cutting stepper motor heating losses, the driver brings energy saving benefits, together with reduced maintenance costs.

System set-up is said to be fast and simple due to the motor auto-tuning and parameter auto-configuration technology. This allows automatic compensation for the unique characteristics of any motor connected to the drive. The motor can be sized from NEMA 17 to NEMA 34 diameter due to wide input voltage coverage and a programmable output current range from 0.5-5.6A. Either two- or four-phase motors can be connected. The drive has a programmable resolution, from full step to 102,400 steps per resolution. The stepper driver's Multistep function allows this full microstepping resolution to be applied to a standard 200-step motor, so system performance becomes smoother.

Highlights

    Suitable to drive size NEMA 17 to NEMA 34 stepper motors
    Supply voltage up to +50VDC
    Programmable output current range from 0.5-5.6A
    Programmable resolution from full step to 102,400 micro steps per resolution
    Support PUL/DIR and CW/CCW modes
    Over-voltage, over-current and phase-error protection provided as standard

Stepper drives always offer the cheapest solution, so use a stepper wherever appropriate. Remember these major considerations: First, does the system require position confirmation? Second: The wrong stepper drive can cause ringing, resonance, and poor low-speed performance. Third, during high speeds, stepper motors can whine. Because stepper drives have a high pole count, hysteresis and eddy current losses are also common at high speed; for these reasons, a stepper is not recommended for continuous operation above 2,000 rpm. Finally, because full current is needed to produce holding torque, step motors can get hot at a standstill.

Fasttobuy has a large selection stepper drives and controls, available in both new and used condition, and the price range varies significantly across the range.

3-D Printing Will Change the World

• Richard A. D’Aveni
• To anyone who hasn’t seen it demonstrated, 3-D printing sounds futuristic—like the meals that materialized in the Jetsons’ oven at the touch of a keypad. But the technology is quite straightforward: It is a small evolutionary step from spraying toner on paper to putting down layers of something more substantial (such as plastic resin) until the layers add up to an object. And yet, by enabling a machine to produce objects of any shape, on the spot and as needed, 3-D printing really is ushering in a new era.
  As applications of the technology expand and prices drop, the first big implication is that more goods will be manufactured at or close to their point of purchase or consumption. This might even mean household-level production of some things. (You’ll pay for raw materials and the IP—the software files for any designs you can’t find free on the web.) Short of that, many goods that have relied on the scale efficiencies of large, centralized plants will be produced locally. Even if the per-unit production cost is higher, it will be more than offset by the elimination of shipping and of buffer inventories. Whereas cars today are made by just a few hundred factories around the world, they might one day be made in every metropolitan area. Parts could be made at dealerships and repair shops, and assembly plants could eliminate the need for supply chain management by making components as needed.
  Another implication is that goods will be infinitely more customized, because altering them won’t require retooling, only tweaking the instructions in the software. Creativity in meeting individuals’ needs will come to the fore, just as quality control did in the age of rolling out sameness.
  These first-order implications will cause businesses all along the supply, manufacturing, and retailing chains to rethink their strategies and operations. And a second-order implication will have even greater impact. As 3-D printing takes hold, the factors that have made China the workshop of the world will lose much of their force.
  China won’t be a loser in the new era, but it will have to give up on being the world’s manufacturing powerhouse.
  China has grabbed outsourced-manufacturing contracts from every mature economy by pushing the mass-manufacturing model to its limit. It not only aggregates enough demand to create unprecedented efficiencies of scale but also minimizes a key cost: labor. Chinese government interventions have been pro-producer at every turn, favoring the growth of the country’s manufacturers over the purchasing power and living standards of its consumers.
  Under a model of widely distributed, highly flexible, small-scale manufacturing, these daunting advantages become liabilities. No workforce can be paid little enough to make up for the cost of shipping across oceans. And few managers raised in a pro-producer climate have the consumer instincts to compete on customization.
  It seems that the United States and other Western countries, almost in spite of themselves, will pull off the old judo technique of exploiting a competitor’s lack of balance and making its own massive weight instrumental in its fall.
  China won’t be a loser in the new era; like every nation, it will have a domestic market to serve on a local basis, and its domestic market is huge. And not all products lend themselves to 3-D printing. But China will have to give up on being the mass-manufacturing powerhouse of the world. The strategy that has given it such political heft won’t serve it in the future.
  The great transfer of wealth and jobs to the East over the past two decades may have seemed a decisive tipping point. But this new technology will change again how the world leans.
  A version of this article appeared in the March 2013 issue of Harvard Business Review.

Amazing Items Made with 3D Printers

XINJE HMI THA62-UT 10.1 Inch 800*480

Product description

10.1 inch touch screen, streamline design 65536 true colors display, support BMP, JPEG format pictures Rich 3D picture library can make the screen more vividly Flexible component selection space, self-defined animation track design Simple switch setting for changing the modes, precise touch area adjust function Self-defined data collection and save function Support various data process modes, such as time trend map, XY trend map… 2 USB ports can realize data duplication and transferring Two com ports can communication independently and realize multi-THs communicate with one PLC. Type notes: MT: standard UT: with USB-A port Specifications: Item THA62 Electrical Input voltage DC20-DC28V Consumption current 630mA Momentary power off allowance Less than 10ms Withstand voltage AC1000V-10mA 1 minute ( signal and time ) Insulated impedance DC500V- about 10MΩ ( signal and time ) Interface COM1 Support RS-232/RS-485 COM2 Support RS-232/RS422/RS485 USB1 USB-A ( accord with USB2.0 ) USB2 USB-B ( accord with USB2.0 ) Environment Operation temperature 0－50℃ Reserve temperature -20-60℃ Environment temperature 20-85% ( no condensation ) Withstand oscillation 10-25Hz ( X, Y, Z each direction 30 minutes 2G ) Anti-jamming Voltage noise: 1000Vp-p, pulse 1us, 1 minute Surrounding air No corrosive gas Protection construction IP65 Screen specification Type 65536 true colors Screen size 10.1 inch Use life More than 50000 hours,24 hours running when surrounding temperature is 25 ℃ Resolution 800*480 Contrast Non-adjustable Character Chinese, English, Korean, Japanese… Character size Any size and font Touch panel 4-wire resistance mode Memory Screen 128MB Construction Cooling method Natural air cooling Exterior dimension 272.2*191.7*51.2mm Mounting dimension 260.2*179.7mm

More Infomation THA62-UT: https://www.fasttobuy.com/hmi-101-800480-128mb-usb-port-tha62ut-with-programming-cable-new_p25802.html

Typical circuit diagram of Star Delta starter

 

S0 = ‘OFF’ Push button
S1 = ‘ON’ Push button
K1 = Line contactor
K2 = Star contactor
K3 = Delta contactor
K4 = Star delta timer (7PU60 20)
F2 = Overload relay
F1 = Backup fuse
F3 = Control circuit fuse

This is a starting method that reduces the starting current and starting torque. The device normally consists of three contactors, an overload relay and a timer for setting the time in the star-position (starting position). The motor must be delta connected during a normal run, in order to be able to use this starting method. The received starting current is about 30% of the starting current during direct on line start and the starting torque is reduced to about 25 % of the torque available at a D.O.L start. This starting method only works when the application is light loaded during the start. If the motor is too heavily loaded, there will not be enough torque to accelerate the motor up to speed before switching over to the delta position. When starting up pumps and fans for example, the load torque is low at the beginning of the start and increases with the square of the speed. When reaching approx. 80-85% of the motor rated speed the load torque is equal to the motor torque and the acceleration ceases. To reach the rated speed, a switch over to delta position is necessary, and this will very often result in high transmission and current peaks. In some cases the current peak can reach a value that is even bigger than for a D.O.L start. Applications with a load torque higher than 50 % of the motor rated torque will not be able to start using the start-delta starter.

Wiring of Star Delta Starter with Timer Control Panel

 

PLC Program for Star Delta Starter

Note:Only for Simulation.

   3D COMPUTER AIDED DESIGN AND MANUFACTURE

3D Design software such as Pro/DESKTOP^® allows the designer to produce three dimensional representations of his/her ideas. When completed the design can be viewed on the screen and it can even be revolved and examined at any angle. 3D software such as Pro/DESKTOP^® is much more complex than 2D software such as TechSoft 2D design. It requires specialist training before it can be used competently.

1. The designer draws up the design using software such as Pro/DESKTOP^®. The design can be examined in detailed and if modifications/alterations are needed they can be made on the screen.Software of this type allows the designer to model his/her idea on the screen rather than make/manufacture an expensive model. Good 3D software allows the designer to design almost any item.

2. The design is processed. When the design has been completed using Pro/DESKTOP^® it must be exported as a stereo lithography file. This type of file can be imported into processing software such as Boxford’s 3D-GeoCAM which converts the drawing into a long list of coordinates. Each set of coordinates is called a GM code.

3. Most CAD/CAM software allows the designer to test the manufacture of his/her design on a computer rather than actually making it. This saves time and materials. Testing designs is carried out using ‘simulation’ software. When the design is run through simulation software the computer displays the manufacturing on the screen. It also checks whether or not the design can be manufactured successfully. Many designs have to be altered before they can be made by a CNC machine.

4. An advanced CNC machine such as the A3 HSRi² (Boxford Machine Tools, Halifax, England)  can be used to manufacture the three dimensional product. This CNC is both fast and accurate  making suitable for school and industrial use.

New Kinco HMI MT4414TE-CAN USB Host Ethernet with Software

MT4000 series HMI use 32-bit RISC CPU and streamlined LINUX kernel, you can display a variety of true-color graphics format, and its superior processing speed and software to meet the needs of most users. Support and the vast majority of the PLC to communicate directly, and can easily exchange data between their connected devices. MT4000 series has a direct line simulation, indirect line simulation, high-capacity user configuration program memory space, compatible with the standard C language macro functions fit the customer needs quickly and effectively complete the field data collection, computing, control.

Features:
(1)65536 color TFT display, supports BMP, JPG, GIF, and other format images import;
(2)High-performance 32-bit 400MHz RISC CPU, fast processing capability to protect the higher work efficiency;
(3)4.3 "to 12.1" wide range of display size;
(4)MT4000E configuration 10M/100M adaptive Ethernet interface;
(5)The integration 1USB the Slave and a DB15/DB25 printer interface;
(6)A powerful the EV5000 configuration software function to support the C language macro script;
Specifications:
MT4414TE-CAN
Display: 7” 16:9 TFT
Color: 65536 Colors
Memory: 128M FLASH + 64M SDRAM

Model	MT4414T	MT4414TE	MT4414TE-CAN
Performance specification
Display	7" 16:9 TFT
Resolution	800*480
Color	65536
Backlight	LED
Brightness	300cd/m2
Backlight life	50000 hours
Touch Panel	4-wire precision resistance network
Processor	32-bit 400MHz RISC	32-bit 800MHz RISC
Memory	128M FLASH + 64M SDRAM
U Disk	None	1 USB host
SD Card	None
Recipe memory & RTC	512KB + RTC
Printer port	Serial port	Serial port/USB port
Ethernet	None	Support
Program download	USB SLAVE/Serial port	USB SLAVE/Serial port/Ethernet port
COM port	COM0:RS232/RS485-2/RS485-4,COM2:RS232
Expansion Port	None		CANopen
Software	EV5000 V1.6
Electrical specification
Rated power	4W
Rated voltage	DC24V
Input range	12~28VDC
Power down allowed	<3ms
Insulation resistance	Greater than 50MΩ@ 500V DC
Dielectric strength test	500 VAC 1 minute
Structure specification
Shell color	Black
Shell material	ABS
Dimensions(mm)	204×150×37mm
Cutout size(mm)	192×138mm
Weight	0.75 Kg
Environment specification
Operating temperature	0~45 °C
Operating humidity	10~90% non-condensing
Storage temperature	-10~60 °C
Storage humidity	10~90% non-condensing
Shockproof test	10~25Hz (X, Y, Z direction, 2G, 30 minutes)
Cooling method	Natural air cooling
Certification
Degree of protection	IP65 (front panel)
CE certification	Comply with EN61000-6-2:2005 and EN61000-6-4:2007standards
FCC compatibility	Complies with FCC Class A

All Kinco series products use HMI configuration editing software (official version): _Kinco HMI software_V2.2_Build131108 (Automatically install driver)
MT4000 series HMI adopts 32 bits RISC CPU and LINUX inner core
MT5000 series HMI adopts powerful intel PXA270 520MHz processor and high-efficiency LINUX system
Human Interface: CE Certification（including MT6000,MT5000,MT4000,MT500 and Text series）
Language: English

More info View here:
http://www.fasttobuy.com/7-hmi-800480-mt4414tecan-usb-host-ethernet-with-free-programming-cablesoftware-new_p26929.html