AutomationDirect has added LS Electric servo systems that provide extremely accurate motion control and include the most requested features — setup wizards, auto-tuning, built-in indexer, and more — in an extremely cost-effective package. The L7S family of brushless servo systems is fully digital and capable of covering a broad range of motion control applications. There […]
Servo Motors
How do manufacturers address cogging in linear motors?
Iron core linear motors are known for their high continuous and peak force capabilities, good thermal management, and excellent force-to-size ratio. But they’re also known to produce cogging forces, which lead to force ripple, or variation in output force. But how much of a problem is cogging for iron core linear motors, and what are […]
When is dither helpful in motion control systems?
Dither is one of several terms used to describe small, rapid, back-and-forth movements of an object. Depending on the context, when the term “dither” is used in motion control systems, it can refer to purposeful, commanded movements or to unintended, unwanted motion. In some motion systems, dither is purposely induced to reduce the effects of […]
JVL expands line of integrated spindle drive motors with absolute multi-turn encoders
JVL A/S has introduced a new addition to its ServoStep line of motors, a directly mountable motor for driving spindles. It’s perfect for replacing hand wheels in format change applications. ServoStep has everything built-in including motor, encoder, drive electronics, control electronics with ePLC and optional Ethernet or CAN bus integrated into one compact unit. All […]
New compact servo motor features integrated positioning controller
maxon’s new IDX compact integrated servo gearmotor + drive combines a powerful, brushless EC-i motor and an EPOS4 positioning controller with field-oriented control (FOC), which can be complemented with a maxon planetary gearhead when required. This integrated motor stands out for its high torque density, high efficiency, maintenance-free components, and a high-quality industrial housing providing […]
Low-profile kit-style limited angle torque motor
The TMR-075-16-001-2 limited angle torque motor utilizes a toroidally wound, stationary coil assembly with a two-pole permanent magnet rotor to generate torque. The rare earth permanent magnet rotor always has an even number of poles, with two to six poles. The maximum angular excursion with a two-pole rotor is 180º, but the torque will drop […]
How to calculate continuous and peak torque values for servo applications
One of the most important tools for sizing a servo motor is the motor’s torque-speed curve, which shows the combinations of torque and speed that the motor can produce in two operating zones — continuous operation and peak, or intermittent, operation. To prevent thermal overload of the motor — and the drive — it’s important to […]
Servo motors with high accuracy, smoothness of motion for automated precision processes
PRHD2 high-performance permanent magnet synchronous servo motors from Servotronix Motion Control are suitable for automated precision processes such as robotic manufacturing, machine tooling, and electronics assembly. The PRHD2 combines excellent dynamics and torque accuracy with a compact design and high-power density. The electromechanical design of the PRHD2 servo motors features low speed and torque ripple, […]
New family of servo systems from AutomationDirect
SureServo2 servo systems, built from motor, drive, I/O breakout module, and cable set components, are now available from AutomationDirect. The SureServo2 offering includes high-powered systems (up to 15 kW), wide input power options (110 Vac or 220 Vac in single or three phase), and a host of additional hardware and software features. The built-in motion […]
What are eddy currents and how do they affect motor performance?
One of the electromagnetic principles that governs the operation of an electric motor is Faraday’s law, which states that when the magnetic environment of a coil of wire is changed — whether by moving the magnet and coil relative to each other or by changing the magnetic field — a voltage, or electromotive force (EMF), will […]
