MagneMotion MagneMover LITE, User Manual, Page: 258 / 382

Operation
Theory of Operation
2 MagneMotion
Rockwell Automation Publication MMI-UM002E-EN-P - March 2016
Theory of Operation
The MagneMover LITE is a new approach to linear synchronous motor (LSM) technology,
which provides a faster, cleaner, and more advanced alternative to conventional propulsion
and conveyor methods. With a scalable, adaptable, and innovative design, the MM LITE pro-
vides the ability to achieve various acceleration and velocity profiles while moving a wide
range of payloads with high precision.
The MagneMover LITE motors are similar in operation to a brushless DC rotary motor, with
its stator (motor primary) and rotor or armature (motor secondary) ‘unrolled’ to allow linear
movement as shown in
Figure 6-1 . The motor primary is a series of coils that generate a mag-
netic field, within the MagneMover LITE motor. The motor secondary is an array of magnets
that is attached to the object to move, referred to as a vehicle (puck). The motor primary gen-
erates a magnetic field to move the motor secondary (vehicle) in a controlled manner. The
MM LITE motors also use the magnets on the vehicle (puck) to track the vehicle’s position.
Figure 6-1: Linear Synchronous Motor Derived From Rotary Motor
MagneMover LITE Transport System Advantages
An advantage of the MagneMover LITE transport system is that the motor secondary (vehi-
cle) is not connected or tethered to the motor primary, allowing the vehicle to travel further
and faster than connection cables allow. Another advantage is unlimited travel length. The
result is a propulsion solution that is efficient, reliable, quiet, and clean. The MM LITE trans-
Rotary Motor
‘Unrolling’ a Rotary Motor
Motor Secondary Movement
Vehicle (Puck)
MagneMover LITE Linear Synchronous Motor
Motor Secondary
Motor Primary
Motor Primary
Motor Secondary
Motor
Secondary
Movement
(Perm Magnets)
(Coils)
Motor Secondary
(Perm Magnets)
Motor Primary
(Coils)