
B-65222EN/03 CONFIGURATIONS AND SELECTION 1.SYSTEM CONFIGURATION
- 57 -
1.3 MOTOR ARRANGEMENT AND DRIVING METHODS
1.3.1 When the Coil Slider Is Used as the Movable Part and When
the Magnet Plate Is Used as the Movable Part
When installing a linear motor on a machine, you can select using the
coil slider as the movable part and the magnet plate as the stationary
part or using the magnet plate as the movable part and the coil slider
as the stationary part. Select either way that is optimum for the
configuration of the machine using linear motors.
When the coil slider is used as the movable part and the magnet plate is used
as the stationary part
- Advantages
A long-stroke system can easily be configured. As many magnet
plates as required for the length (effective stroke + length of the coil
slider +α) can be arranged to secure the required stroke.
- Disadvantages
The cables and cooling tube must also be movable. Carefully select
these parts, in particular, for a machine requiring high-speed
operation. When the stroke exceeds 3 m, no absolute linear encoder
can be selected currently.
When the magnet plate is used as the movable part and the coil slider is used
as the stationary part
- Advantages
The cables and cooling tube can be fixed. So, it is not necessary to
consider movability of these parts. Only the magnet plate is the
movable part and is lighter than the coil slider. So, it is easy to
implement operation at a higher speed and acceleration. Consequently,
this method is optimum for a short-stroke machine which oscillates
in short cycles.
- Disadvantages
This method is not suitable for a long-stroke machine because an axis
space of a length of at least double the effective stroke is always
required.