Omron R88D-KN01L-ECT-L User Manual page 142

4 System Design
• Provide appropriate ventilation as required to prevent excessive rise of the ambient temperature
since the heat is dissipated into the air.
• If the rise of the ambient temperature must be suppressed for a certain application, or if the
moving table dimensions are small, calibrate the cooling system separately to cool the Motor Coil
Unit.
Rigidity of Linear System
The response performance of a linear system is affected by the rigidity of the Linear Slider. Ensure
that the rigidity is appropriate for the required performance. If a gain is set to higher than the
machine rigidity, the vibration occurs.
Take the following measures to improve rigidity.
• Use preloaded linear guides. This makes the Linear Slider highly rigid with less play in the
mechanical system.
• Ensure the rigidity of the base material to which the Linear Slider is secured. The materials in
descending order of rigidity: granite, steel, and aluminum.
• The moving table must have a sufficient thickness to prevent deformation and vibration.
• Install the Magnet Track and external encoder in a straight and parallel line.
• Install the external encoder as close to the Motor Coil Unit as possible.
Allen Head Bolts Used for Motor Coil Unit
For the Motor Coil Unit, use steel allen head bolts that meet the following requirements.
Bolt for Motor Coil Unit
Nominal diameter
Fitting length of bolt
Tightening torque [N·m]
Allen Head Bolts Used for Magnet Track
For the Magnet Track, use steel allen head bolts that meet the following requirements.
Bolt for Magnet Track
Nominal diameter
Head size
Installation Procedure
Notice
Each Magnet Track unit includes a protective cover that
reduces the effect of the magnetic field. Do not remove this
protective cover until the Magnet Track installation is
completed.
4 - 6
R88L-EC-FW-03
R88L-EC-FW-0306
R88L-EC-FM-03
M5
Use low head allen head bolts.
Head diameter: 8.5 mm or less
Head height: 3.5 mm or less
G5-series Linear Motors/Servo Drives With Built-in EtherCAT Communications
R88L-EC-FW-0606
R88L-EC-FW-1112
R88L-EC-FW-0609
R88L-EC-FW-1115
R88L-EC-FW-0612
M4
4 mm min.
5 mm max.
2.0 to 3.0
R88L-EC-FM-06 R88L-EC-FM-11
M5
Head diameter: 8.5 mm
or less
Head height: 5 mm or
less
Protective cover
M5