Mechanical installation
Coreless linear motor AL3800
21
Version: 3.6
7.4
Assembling the coil unit
NOTE
Damage due to contamination
The mounting surface must always be free from contamination. Particles with a size of more than 0.1 mm
can result in incorrect configuration and damage to the linear motor.
Mounting of the coil unit on the clean mounting surface of the carriage is not hindered by attractive forces!
An axis reference for the coil unit (CR) is achieved as follows:
• Two alignment pins next to the first and last bolt of the coil unit
• Milling reference along the entire path (inside radius < 0.2 mm)
Procedure:
1. Insert the coil unit in the magnet yoke and position it on the mounting surface
2. Align the coil unit with the axis reference
3. Secure the coil unit with bolts
4. Observe the specified tightening torque!
The exact air gap dimensions (A1 and A2) can only be achieved, if the references and measurements
mentioned above are adhered to.
NOTE
Damage caused by vibration
For applications that are subject to vibrations, the bolts must be secured (e.g. with clamping rings or thread
locking compound)
Thermal protection
If the linear motor is operated continuously at its rated output, thermal compound should be used, in
order to optimize the thermal contact between the coil unit and the mounting surface.
7.5
Dismantling sequence
WARNING
Damage due to uncontrolled magnetic attractive forces
The specified installation sequence must be followed! Deviation from the sequence may result in dangerous
situations due to magnetic attractive forces.
The correct dismantling sequence is as follows:
1. Disconnect the cables from the coil unit.
2. Remove the coil unit from the carriage.
3. Remove the magnet yokes from the support frame of the machine.
