Assembling The Sensor Head; Assembling The Magnetic Tape - Balluff BML-S1G0-B7-M5E-0-S284 Serie Betriebsanleitung

BML-S1G0-B/S7_ _-M5E_-_0-(SA26-)S284
Absolute Magnetically Coded Position Measuring System
4
Installation and connection (continued)
4.2

Assembling the sensor head

NOTICE
Interference in function
Improper assembly of the magnetic tape and sensor
head may impair function of the position measuring
system and lead to increased wear or damage to the
system.
► All permissible distance and angle tolerances (see
section 4.1) must be strictly complied with.
► The sensor head may not come into contact with
the magnetic tape over the entire measuring range.
Contact must also be avoided if the magnetic tape is
covered by a cover strip (optional).
► The position measuring system must be installed in
accordance with the indicated degree of protection.
External magnetic fields change the functional properties.
Magnetic fields with ≥ 1 mT reduce the precision of the
system, magnetic fields of ≥ 30 mT destroy the magnetic
tape. The functionality of the system is no longer
ensured.
► Direct contact with magnetic clamps or other
permanent magnets must be avoided.
No forces may be exerted on the plug on the housing.
► Provide the cable with a strain relief.
Assembling the insulators
32.2
25
3.2
Fig. 4-4: Insulator
With increased EMC requirements, the sensor head can
be assembled in a way to insulate it completely from the
machine using two insulators. This requires two M3
threaded holes on the machine part.
► Insert the two insulators into the 4.3 mm holes on the
sensor head to the left and right.
– If the insulator is used with a washer
(3.2 × 7 × 0.5 according to DIN 125A/
ISO 7089), the torque of an 8.8 M3 cylinder
screw is 1.3 Nm.
– Secure the screws against unintended
loosening (e.g. with locking paint).
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Machine part
Insulator
Fig. 4-5: Assembling the insulators
Assembling the sensor head
► Fasten the right or left side of the sensor head to the
machine part whose position is to be determined (see
Fig. 3-1 on page 7 and Fig. 4-1 on page 8).
To function correctly, the bottom of the sensor
head must always be above the magnetic tape
(see Distances and tolerances on page 8).
4.3

Assembling the magnetic tape

For a complete technical description and
assembly instructions for magnetic tapes,
please see the magnetic tape user's guide in the
Internet at www.balluff.com.
Ideally, the system should include a groove or a stop edge
for the magnetic tape that clearly defines its the lateral
position. If there is no stop edge, the magnetic tape can be
installed in the center below the sensor head using the
installation aid (BAM TO-ML-006-S1G, page 31).
M3
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