Installation And Connection; Assembling The Measuring System; Alignment Of Sensor Head To Magnetic Tape - Balluff BML SF2-I2 -A- Z 5-KA Serie Manual De Instrucciones

BML SF2-I2 _ _ -A/QZ _ _ - Z _ _ 5-...
Incremental magnetic encoder system
4

Installation and connection

4.1

Assembling the measuring system

NOTICE
Interference in function
Improper installation of the magnetic tape and sensor
head may impair function of the linear encoder system
and lead to increased wear or damage to the system.
► Strict adherence to all permissible distance and
angle tolerances is required (see section 4.4.1).
► Make sure that the sensor head does not touch the
magnetic tape or the optional cover strip across the
entire measuring range.
► Install the linear encoder system in accordance with
the indicated degree of protection.
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.
► Keep external magnetic fields (> 30 mT) away from
the measuring system.
► Avoid direct contact with magnetic retainers or other
permanent magnets!
No forces may be exerted on the plug or cable on the
housing.
► Provide the cable with a strain relief.
Excess tightening torque can damage the housing.
► Tighten the screws with the appropriate tightening
torque (see Tab. 4-1 on page 12).
4.2

Alignment of sensor head to magnetic tape

During assembly, make sure that the sensor head is
correctly aligned to the magnetic tape.
To ensure correct operation or to obtain the required
measurement accuracy, adhere to the assembly
tolerances for the specific application (see section 4.4
starting on page 11).
To be able to utilize the maximum measuring
length, select the corresponding magnetic tape
length and pay attention to the positioning of
the sensor head to the magnetic tape (see
section 4.4.3 starting on page 15)!
10 english
When positioning the sensor head and
magnetic tape, make sure that they are aligned
correctly to each other. Orientation arrows are
printed on the part label of the sensor head and
magnetic tape for this purpose. These must be
pointing in the same direction.
Alternatively, the orientation of the tape can be
determined using a pole pitch display card
(included with the BAM TO-ML-014-02
assembly accessories; see page 27).
The code on the part label of the sensor head
and on the magnetic tape must be identical.
BML SF2-_ _ _ 1-... (longitudinal variant)
jjwwDE
Code
Sensor head part label
Fig. 4-1: Alignment of sensor head to magnetic tape – longitudinal
variant
BML SF2-_ _ _ 2-... (transverse variant)
Orientation arrow
jjwwDE
Code
Code
Sensor head part label
Fig. 4-2: Alignment of sensor head to magnetic tape – transverse
variant
Orientation arrow
Code
Code
Code