Affixing The Cover Strip; Fastening The Tape To A Cylindrical Surface - Balluff BML-M0 Série Notice D'utilisation

BML-M0 _ -... / BML T _ _ -...
Magnetic Tape – Magnetic Encoder System
4
Installation (continued)
4.7

Affixing the cover strip

To protect the magnetic tape from damage (caused for
example by chips or chemicals), you may cover it using a
stainless steel cover strip (accessory).
Before affixing the cover strip, carefully clean the surface of
the magnetic tape (turpentine, mild plastic cleaner, no
acetone or benzine).
Marking the reference point
Mark the reference point on the right of the
machine part before affixing the cover strip if
necessary!
Procedure is identical to that for affixing the magnetic tape.
As soon as the cover strip is completely bonded, make
sure that the sensor head does not touch the cover strip at
any point over the entire length.
14 english
4.8

Fastening the tape to a cylindrical surface

The tape can be bonded e.g. to a cylinder or shaft.
The pole width on the tape surface is larger than in the
center (see Fig. 4-6).
The greater the distance to the incremental sensor, the
greater the pole width and resulting non-linearity.
Note the following installation information to keep non-
linearity to a minimum:
– The permissible diameters are described in the sensor
head manual.
– The area of travel must be less than 360°.
– The distance between the sensor head and tape must
be kept to a minimum.
– Note tangential position.
– Mounting possibilities (see Fig. 4-3): Glue to the surface
or recess in a slot and glue.
Always fasten the tape ends with cylinder
screws, countersunk screws, or clamps (see
Fig. 4-5).
Incremental sensor
Fig. 4-6: Pole width P is dependent on the distance to the sensor
head