MOTORS, DRIVES & CONTROLLERS
ADDITIONAL RESOURCES
DINGS' MOTION USA
Stepper Motors
BLDC Motors
IP65 Motors
IP65 RATED ROTARY STEPPER MOTORS
Hollow Shaft Motors
SERVOTRACK - THE ULTIMATE STEPPER MOTOR CONTROLLER & DRIVER
Bridging the Gap Between Servo, Brushless DC, and Stepper PerformanceOur patented ServoTrackTM Technology makes it easy and cost effective to shift from stepping motor to servo performance. ServoTrackTM is a DYNAMIC CLOSED LOOP MOTION CONTROL TECHNOLOGY that eliminates unintentional stalling due to transient loads, and enables rotary torque and linear force control as an integral function of your design. AND you will NEVER lose functional control of your motor.
Quick summary of Capability:
Step motor systems have unique characteristics such as smooth motion, stiffness at stand still, easy setup, and low cost. Popular for decades, these systems continue to be a widespread choice among design engineers. More specifically, step motor technology provides several advantages over servo motor systems. One of these is inherently lower cost as compared to servo motors due to step motor construction. Step motors do not require tuning, allow for greater inertia mismatch and have a very high torque density. Because this torque is 100% available immediately upon startup, step motors can be very advantageous for applications requiring short, quick moves or when coupled with high inertia loads.
In addition, since step motors are synchronous motors with a high pole count, they are able to run smoothly at extremely slow speeds with minimal torque ripple. Both servo and step motors share a common identity as permanent magnet synchronous motors; however, there are differences that impact how the motors perform. For example, brushless servo motors typically have (2) to (8) magnetic poles on the rotor, whereas the 1.8 degree step motor has (50) poles. Due to this pole count difference, the step motor is, in essence, electromagnetically geared down as compared to the servo motor, allowing for better low end torque performance and positioning capabilities.
As with any technology, there are also some disadvantages associated with use of a step motor system. The most critical drawback is the loss of synchronization and torque (stall) if a large load exceeds the motor’s capacity and its ability to resynchronize once the load is reduced to a level within the motor’s capability. In addition, step motors tend to run hot due to use of full phase current, independent of load. In many cases, these disadvantages, along with the limitations associated with available ‘bridge’ technology to overcome them, may have influenced the decision to choose higher cost servo technology rather than traditional step motor technology.
THAT IS, UNTIL NOW…. ServoTrackTM closes this ‘bridge’ technology gap and provides a closed loop stepper system by eliminating unintentional stalling due to transient loads, or excess friction, and enabling torque control as an integral function of your stepper system. Why ServoTrackTM? After all, different variations of closed loop stepper systems have been introduced to the market in recent years. Unfortunately, most all of them accomplish the task through a form of PID (Proportional–Integral–Derivative) software, an algorithm similar to that designed for use in servo motor systems. As a result, optimization requires tuning of the closed loop stepper system, much like a servo system. Another consideration is that, as in the servo systems that they closely relate to, most closed loop stepper systems require a high-resolution encoder in order to get feedback and thus achieve the benefits of closing the loop. Response from these software-based controls is also limited to processing speed. As functionality is added or faster loop times are needed to maintain load requirements, higher speed processing becomes necessary and system cost increases. In contrast, ServoTrackTM accomplishes the benefits of “real time” closed loop control through the use of hardware, not software, with real time nanosecond updates.
LOVATO ELECTRIC
NIASA
NIASA F/A Series linear actuators are electro-mechanica lcylinders in which a round stem moves inside a second tube,of either steel or aluminum. The lengthwise movement of the stem is achieved with the combination of an interior screw/nut which drags it, and an electrical motor that drives the screw/nut. The power transmission from the motor may be direct or by means ofdifferent gear solutions and toothed belts.
Against solutions with exposed screws, protecting them with an external stem means that the equipment is very highly sealed and can operate in the most aggressive conditions, with the presence of dust or liquid of almost any type in the environment. The stem provides an extraordinary capacity for buckle load against axial compression loads.
These types of actuators are the best solution in practically any application that requires precise and safe linear movement, whether it is for transfer or for elevation and regardless of the speed required. Their main advantages against other systems, such as pneumatic or hydraulic cylinders, are the following:
Stem advance speeds depending on the screw pitch and the transmission used. Trapezoidal and ball screws, depending on the performance required, precision of the desired movement and positioning, etc. Outer tube of steel or extruded aluminum profile. The latter is, in general, the lightest and enables immobilization in the stem's rotation and a magnetic sensor to be integrated. Fastening accessories and elements, for optimal adaptation to the most varied systems that may be designed. Drives, with different reduction ratios and positions with respect to the cylinder, enable the best solution to be offered for any speed and configuration problem. Among these are the following as standard:
TOYO
UNITRONICS
UniStream® Series Programmable Controllers
UniStream by Unitronics is an complete line of All-in-One Programmable Logic Controllers, for your most challenging, complex automation projects. This award-winning line is available in two series: UniStream Modular, enables users to create customized controller solution in three steps or fewer, and UniStream Built-in, highly compact programmable logic controller, where the PLC, HMI, and I/Os are built into a single unit. UniStream is programmed with UniLogic, award-winning single-environment programming software that can slash programming time by as much as 50%.
Vision™ Series Programmable controllers
For Advanced Machines & Automation Projects. Unitronics’ Vision series is an award-winning series that offers a full range of all-in-one Programmable Logic Controllers with integrated HMI panels. With options ranging from a palm-sized PLC up to a 12.1-inch touchscreen PLC+HMI and support for 1000 I/O points, the Vision series has something for everyone. Vision is programmed with VisiLogic, the single, easy-to-use software environment for Ladder Logic, HMI design, and communication configuration.
Samba ™ Series Programmable Controllers
Need a full-function control solution for a relatively simple application, but don’t want to compromise on the user interface or blow your budget? The Samba PLC+HMI from Unitronics could be the solution you need; this all-in-one Programmable Logic Controller has an integrated touchscreen, measuring 3.5, 4.3, or 7-inches, and onboard I/O in six possible configurations. The Samba offers features to compete with high-end PLCs, like a range of supported communication protocols, data logging and Trend capabilities, and a built-in alarm management system, but it’s priced more like a push-button or smart relay system. Since Unitronics provides programming software and technical support complimentary to all users, nothing beats the price to performance ratio of the Samba All-in-One PLC+HMI.
Jazz® and M91™ Programmable Controllers
Jazz® and M91™ – For simple PLC control—with text-only HMI + keypad. Finding a reliable, cost-effective PLC and HMI can be the hardest part of an otherwise simple automation project. Unitronics Jazz and M91 series are here to make sure simple projects stay simple. These Programmable Logic Controllers have onboard I/O, built-in text-display HMIs, and complimentary software and technical support. Everything you need for a simple, self-contained automation project comes included with a Jazz or M91 All-in-One PLC at one affordable price.