6
MB400
Datum 23.04.2001
Art.Nr. 77331
Z.Nr. 8668016
Änd.Stand 146/01
• Also fix cover strip’s ends to avoid uninten-
tionalpeeling.
Fig. 1: Mounting of the magnetic strip
Attention ! Do not expose the system to magne-
tic fields. Any direct contact of the magnetic
strip with magnetic fields (eg. adhesive magnets
or other permanent magnets) is to be avoided.
Sensor movements during power loss are not
captured by the follower electronics.
Mounting examples
Mounting with chamfered ends (fig. 2) is not
recommended unless the strip is installed in a
safe and protected place without environmental
influences. In less protected mounting places
the strip may peel. There we recommend moun-
ting accord. to fig. 3 and 4.
Mounting in a groove (fig. 5) best protects the
magnetic strip. The groove should be deep
enough to totally embed the magnetic strip.
Fig. 2
Fig. 3
Fig. 4
Fig. 5
3.2. Mounting the sensor
Use the two M3 screws to fix the magnetic
sensor via the ø3.5 mm through holes.
• Cable layout should avoid damages due to
cable strain or other machine parts. If necessary
use a drag chain or protective hose and provide
for strain relief.
• Sensor must be aligned correctly with
respect to the counting direction (see fig. 6).
This can be ignored if counting direction can be
changed via the follower electronics (eg. by
magnetic display units from
SIKO
).
• When mounting the magnetic sensor, ensure
that the gap between strip & sensor and the max.
admissable deviation are maintained over the
total measuring length! (see fig. 6)
• Maximal travel speed <10m/s
Fig. 6: Definition of counting direction / mounting
4. Electrical connection
• Wiring must only be carried out with power off!
• Check all lines and connections before swit-
ching on the equipment.
Interference and distortion
All connections are protected against the effects
of interference. The location should be selec-
ted to ensure that no capacitive or inductive
interferences can affect the sensor or the
connection lines! Interference can be caused
by motors, switch gear, cyclic controls and
contactors. Suitable wiring layout and choice of
cable can minimise the effects of interference.
Necessary measures:
• Only screened cable should be used. Wire cross
section is to be at least 0,14 mm
2
, max. 0,5 mm
2
.
• Wiring to the screen and ground (0V) must be
secured to a good point. Ensure that the connec-
tion of the screen and earth is made to a large
surface area with a sound connection to minimi-
se impedance.
Counting direction A before B
Gap between sensor and magnetic strip:
0,1- 4 mm
Max. deviation
< 1°
< 3°
< 3°
sensor’s travel direction
cable outlet
active side