Design Guidelines
Transport System Design
10
MagneMotion
Rockwell Automation Publication MMI-UM002E-EN-P - March 2016
•
Refer to
for the Precision Locator option mechanical
drawing.
•
The MagneMover LITE transport system allows only one vehicle (puck) at a time on a
motor block (see
).
•
The thrust available per magnet cycle must be taken into account when designing with
the MagneMover LITE motors (see
).
Motor Types
The MagneMover LITE motor bodies are available in two styles; motors with integral rails
and railless motors (refer to
form the same and have the same operating specifications.
Available Thrust
The thrust available from the MagneMover LITE motor to move a vehicle (puck) is deter-
mined by several variables:
•
Magnet array length (in cycles). Note that the MM LITE always uses 1 cycle arrays.
•
Vehicle Gap (distance between the magnet array attached to the vehicle and the
motor). This is fixed in standard MM LITE configuration by the height of the rails on
the motors and the location of the runners in the pucks.
•
Friction or drag between the vehicle and the guideway.
•
Motor Gap (physical distance between motors) and Downstream Gap (actual distance
between motor blocks in adjacent motors), refer to
. Using custom motor
mounts that change the default spacing between motors is not recommended.
At the nominal Vehicle Gap of 1 mm [0.04 in] for G3 magnet arrays and 1.5 mm [0.06 in] for
G4.2 and later magnet arrays (gap between the magnet array and the top of the MagneMover
Table 3-2: MagneMover LITE Motor Blocks
Motor Type
Motor Block
Length
No. Blocks
Array Cycle
Length
1000 mm
16.47 mm
60
54.5 mm
250 mm
16.47 mm
15
54.5 mm
Table 3-3: MagneMover Light Thrust Force Guideline
1.5 mm Magnetic Vehicle Gap (G4 Motor and Magnet Array)
Force
Thrust per cycle @ 100% duty cycle
6 N/cycle
*
*
Thrust at 100% duty cycle must be limited to prevent overheating of the motor.
Thrust per cycle @ 25% duty cycle
10 N/cycle