Balluff BML-S2C0-Q M6 Serie Notice D'utilisation page 40

BML-S2C0-Q _ _ _ -M6 _ _ - _ 0-KA _ _ /KF _ _ /KA _ _-S284
Incremental Magnetic Linear Encoder
11
Appendix
11.1 Troubleshooting
Error
The controller does not receive any
travel information.
The controller does not receive any
travel information at certain points or
an incorrect position is output at certain
positions when switched on.
Position signal with strong noise
interference.
Non-linearity is outside the tolerance.
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Possible causes
The required supply voltage is not
available.
The voltage drop is too high.
Cables are not correctly connected.
The distance between the sensor head
and magnetic tape is incorrect (in some
places).
Some of the magnetic poles of the
magnetic tape are damaged
(mechanically damaged or due to
strong magnets).
The distance between the sensor head
and magnetic tape is too large.
The sensor head is not moving parallel
to the magnetic tape (for tolerance, see
Fig. 4-1).
The distance/angle between the sensor
head and magnetic tape is too large.
Troubleshooting/explanation
Check if there is any voltage and that
the BML is correctly connected.
The position measuring system must
receive an operating voltage of 10 to
30 V DC or 5 V ±5%.
Check the voltage over the sense line
(voltage drop, see page 11).
Check the cables using the wiring
diagrams.
Adjust the height/angle of the sensor
head. To check, move the sensor head
by hand over the entire measuring
range.
Exchange the magnetic tape.
Fasten the sensor head at a shorter
distance from the measuring tape.
Correctly position/orient the sensor
head (see section 4).
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