Electric Motors, Motor Controllers & Peripherals

Electric motors are used in motion control applications to convert electrical energy into mechanical energy. They are available in a wide range of types that are more adaptable and diverse than ever before, so it is important to select the correct motor and peripherals to maximise the performance of your system.

Types of electric motors

Typically DC electric motors are available in either brushed or brushless types. Brushless requires less maintenance as the brushes do not require replacement and usually spin faster than brushed motors.

Our range includes the most commonly used types of electric motors which are as follows:

  • AC / DC Motors - Available in either brush and brushless types and synchronous and asynchronous
  • AC / DC Geared Motors - Suitable where a specific RPM output is required
  • Servo Motors - Allow for precise control of angular or linear position, velocity and acceleration
  • Stepper Motors - Where motor speed is required to be in discrete steps

What is a motion controller and how does it work?

Motor controllers are devices which are used to manage the speed or performance of an electric motor by controlling the amount of energy which is transferred between the energy source and motor.

The controller works by switching the energy connection on and off using a technique called pulse width modulation (PWM), then averages these pulses out.

Motor controllers can be either manually, remotely or automatically operated. More advanced styles of controller can start or stop the motor along with other improved functionalities such as adjusting the speed of the motor based on mechanical load, protecting the motor or providing smoothed acceleration curves.

What accessories are available to use with electric motors?

In industrial automation processes, using accessory equipment for motors assists in operation but can also improve performance and increase efficiency. Some peripherals to consider are:

  • Soft starts - reduce the torque and load during the startup phase to prolong lifespan.
  • Motor starters - control the amount of electrical power during startup. They can also stop, reverse and offer protection.
  • EMI filters - suppress electromagnetic interference which is generated by radio signals or through signal/power lines.
  • Inverters (VFD Variable frequency drives) - a type of motor speed adjuster used in electro-mechanical drive systems. The drive controls the AC motor speed by changing the input frequency and voltage.
  • Motor protectors protect motors against damage by monitoring motor health during operation.
  • Stepper motor drivers control stepper motor speeds.
  • Break modules stop motors in operation as an alternative to friction braking.

Guides & Articles

article1_image

In our definitive guide, we look at what flow switches are, how they work and what they’re used for, as well as the different types that are available.

article1_image

In our comprehensive guide we look at what thermocouples are, what they’re used for, as well as the different types that are available.

Related Products
The SCS ESD grounding cord is a 15ft ...
Description:
The SCS ESD grounding cord is a 15ft 20AWG PVC wire. It has moulded-in male snap fastener with integral 1Mohm resistor on one end and solderless terminal on other. It comes in black nylon cover with black polyester insert and ...
Our own brand of RS Pro ESD wrist-straps ...
Description:
Our own brand of RS Pro ESD wrist-straps feature premium grade fabric band with an elastic ratio of 1:2.5” to 1:3. The outer surface of the wristband is non-conductive and the inside surface of the strap is conductive lined with ...
Our RS Pro range of hard-wearing ESD grounding ...
Description:
Our RS Pro range of hard-wearing ESD grounding straps have been designed to ensure efficient static bleeding, to ensure a reliable method of static dissipation. Predominantly used within the electronics industry, but still suited to enthusiasts working at a bench. ...
The RS Pro anti-static wrist strap is a ...
Description:
The RS Pro anti-static wrist strap is a premium metal wrist band (stainless steel) that is adjustable and features a coiled cord. Its metal interior is great for grounding. This wrist strap will fit all wrists as its circumference adjusts ...