ETG LDO AC 3.0 Installation And Operation Manual page 18

Door drive
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6 Generator:
The generator is located in the drive opposite the gear wheel. A magnet is mounted on the elongated
output shaft using a magnet holder, which analyzes the magnetic field of the generator. The magnet
holder can be axially slipped onto the shaft in order to define the separation distance.
Generator mounting / configuration:
Attach the foundation plate of the generator to the drive using spacers. Before tightening the screws,
the thread must be centered using the magnet holder. In order to define separation distancs
between magnets, the magnet holder must be slightly protruding. In order to ensure this, a small
piece of paper is placed in the recess of the generator. Using the generator, the magnets are pressed
onto the shaft, in the direction of the drive. Before the generator is tightened, the paper is removed
and thus the separation distance between the magnets is defined. Testing the generator, see Chapter
4 point 7.
Figure 5-5 Separation distance of generator magnets
(max. magnet eccentricity towards housing = 0,5 mm)
Figure 5-7 Motor with the generator
10/2015
max. eccentricity
of magnet to the
housing = 0,5mm
customer's axle
Figure: 5-6 Generator
(customer's axle, magnet holder, ENI)
magnet holder
Page 18 of 24

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