Ideally suited for applications such as packaging and labeling, automated test and measurement, automated assembly and life sciences, StepSERVO motorsfrom Applied Motion Products provide the next evolution integrated step motor technology. Starting with a proven integrated motor design, we add a high-resolution incremental encoder and closed-loop servo firmware to create a motor that offers the […]
Stepper Motors
Detent torque and holding torque
One feature of stepper motors that differentiates them from other motor types — particularly servo motors — is that they exhibit holding torque. This means that when the windings are energized but the rotor is stationary, the motor can hold the load in place. But a stepper motor can also hold a load in place […]
What’s the difference between BLDC and synchronous AC motors?
The short answer is: brushless DC (BLDC) and synchronous AC motors are similar in construction and operation. Some manufacturers and experts even group them together as similar technologies, in the category of “permanent magnet synchronous motors.” Their key difference, however, lies in the stator coil windings and resulting back-EMF waveform of each motor. This gives them distinct performance […]
Kollmorgen releases next generation of stepper motors: Broader range of frame sizes, high-performance motors
Kollmorgen now sells next-generation stepper motors, the PMX series, adding smaller 08, 11, and 14 frame sizes to the traditional 17, 23 and 34 frame size offering. Thanks to a wider range of sizes and options, OEMs now have added flexibility to meet multiple performance and application needs from a single motion source. Each frame size […]
New 2-phase stepper motors with electromagnetic brakes from Oriental Motor
Oriental Motor’s new 1.8° and 0.9° PKP Series 2-phase stepper motors are available with built-in power-off activated preassembled electromagnetic brakes. When power is accidentally cut off due to unexpected events, such as a blackout, the electromagnetic brake holds the load in position to prevent it from moving. When the motor is at standstill, it can be […]
HS Motion Group now sells integrated stepper motors
To meet the market’s growing demand for greater machine efficiency and cost reduction, HS Motion Group recently introduced a series of closed-loop integrated stepper motors as an off-the-shelf product. With a superior closed loop control and a cost-effective design, stepIM provides an efficient and affordable solution for applications that require the performance of a servo […]
Stepper motor perfect for compact drives
The new FAULHABER FDM0620 series stepper motor from MICROMO is a high-performance option for compact drives. All components (including connections) are in a housing 9.7 mm long and 6 mm in diameter. With this combination of minimal space requirements and maximum power, reliability and production quality, the FAULHABER Group continues its leadership in micro-motors and expands its family of stepper motors in […]
What’s the difference between servo and closed-loop stepper motors?
Servo and stepper motors have similar construction and share the same fundamental operating principle. Both motor types incorporate a rotor with permanent magnets and a stator with coiled windings … and both are operated by energizing or applying a dc voltage to the stator windings, which then causes the rotor to move. However, this is […]
FAQ: What are lead-lag stepper motor controls?
Lead-lag controls or compensators are pieces of programming in control systems that improve frequency response. A lead control can increase a system’s stability or its response speed. A lag control can reduce steady-state errors. Different combinations change output in different ways. A note on terminology: The terms controller and compensator have several different meanings. Some […]
FAQ: What is closed-loop control with load-position control?
Load-position control is a form of closed-loop stepper-motor control. It’s true that stepper motors can run open loop—as they don’t need sensor-feedback-based controller corrections. So, stepper-motor circuits are simpler and the motors are easy to implement … but if anything goes wrong in the application, the open-loop stepper won’t respond to the new condition. In […]