By Hurley Gill • Senior Systems and Application Engineer | Kollmorgen Servomotor-inertia ratios impact overall machine efficiency, and their use has evolved with servo-drive technology. So now, the newest digital servo-drive and feedback technologies can get higher inertia ratios while maintaining stable control to target velocities and positions. That can boost design efficiency, especially for […]
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Top 12 design considerations for power-off brakes
The proliferation of new applications for power-off brakes demands fresh design approaches leveraging leading brake manufacturers’ accumulated design experience. Key to optimizing designs for life, cost, and performance is early collaboration with the brake manufacturer. By Brian Mather • Ogura Industrial Corp. Machine designers in the motion-control industry recognize power-off brakes by the following terms: […]
Part one of three: Selecting regenerative resistors to harvest servomotor energy
Here we explain the data required for determining regenerative-power requirements and regen-resistor selection for the controlled motion of servomotor systems. By Hurley Gill • Senior applications and systems engineer | Kollmorgen Electric AC servomotors are either synchronous or asynchronous motors used in a closed-loop (servo) configurations for precise output control. Control over motion outputs — […]
When to use gears to change the inertia ratio of a motor-driven system
In any system where a motor drives a load to achieve precise positioning, velocity, or torque, the ratio of the load inertia to the motor inertia plays a significant role in determining the motor’s ability to effectively and efficiently control the load, especially during acceleration and deceleration portions of the motion profile. In this context, the […]
Servomotor basics video: Common motor types for closed-loop operation and motion applications
Servomotors are electric motors that output motion under closed-loop control — so they rely on feedback from encoders or sensors … as well as a controller to process those signals for shaping the commands and corrections back to the motor. Usually these are rotary servomotors to output precise torque and speed — often for positioning. […]
9 considerations when picking servocouplings for servo applications — and 4 references from couplingtips.com
Couplings for servo applications usually connect precision drives to sensitive loads, so they cannot induce any error. That’s why servocouplings should be zero backlash — to prevent issues with timing and predictability (not to mention failures due to hammering on reversing axes). Couplings for servo applications must also have high torsional stiffness while imparting slight […]
Unique servomotors improve packaging application
High-capacity manufacturing applications are leveraging servomotors and drives in their quest to achieve better efficiency with automation. This is because servomotors are one of the most commonly used motors for precision positioning and load-responsive motion. Servomotors power applications in a wide range of industries, though are most suited for controlling the movement of machines in packaging, […]
NEMA size 23 direct-drive hybrid servomotors from Quicksilver
A full range of NEMA 23 frame size Direct Drive Hybrid servomotors is now available from QuickSilver Controls. Four stack sizes provide 80 oz-in. (0.56 Nm) through 430 oz-in. (3 Nm) of continuous torque, with top speeds from 1,000 to 4,000 rpm. Hybrid Servo motors are well suited for direct-drive applications – eliminating the need […]
New cost-effective MCM servomotors from Lenze Americas
Lenze Americas has launched a series of MCM synchronous servomotors that delivers intermediate-level dynamic performance. Scalable, modular Lenze MCM motors are easy to control and optimized for a range of positioning tasks, including robotics, packaging equipment and handling systems. “Designed with an optimal torque and inertial mass ratio, our MCM servomotors give customers the precision […]
Stepper motor or servomotor: Which should it be?
Servomotor and stepper motor technologies are indispensable in today’s mechatronic machine designs. However, clear understanding of the advantages and disadvantages of both make it easier to identify which is best for a given application. By Hurley Gill • Senior Systems and Application Engineer| Kollmorgen If a given motion task can be done with either a […]