Appendix; Additional Documents; Troubleshooting - Balluff BML SF2-I2 -A- Z 5-KA Serie Betriebsanleitung

BML SF2-I2 _ _ -A/QZ _ _ - Z _ _ 5-...
Incremental magnetic encoder system
10

Appendix

10.1

Additional documents

Additional documents can be obtained online at
www.balluff.com or by e-mailing
service@balluff.de.
Document name
User's Guide – Magnetic Tape
User's Guide – Magnetic Rings
Interfaces for BML Magnetically Coded Position Measuring System
Tab. 10-1: Overview of additional documents
10.2

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 when
switched on,
or
the LED is not continuously green.
Position signal has strong noise
interference.
Reference signal is not output.
Non-linearity is outside the tolerance.
Tab. 10-2: Possible sources of errors and troubleshooting
30 english
Possible causes
The required supply voltage is not
available.
The voltage drop is excessive.
Cables are not connected correctly.
The orientation of the magnetic tape is
incorrect.
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 great.
The orientation of the magnetic tape
with reference point is incorrect.
The sensor head is not moving parallel
to the magnetic tape (for tolerance, see
4.4.1 on page 13).
The distance/angle between the sensor
head and magnetic tape is too large.
Document number
866483
928301
929191
Troubleshooting/explanation
Check if there is any voltage and that
the BML is correctly connected.
The position measuring system must
have an operating voltage of 5 V ±5%.
Check the voltage over the sense line
(for voltage drop information, see
section 4.6 on page 18).
Check the cables using the wiring
diagrams.
Check the orientation of the magnetic
tape
(For alignment of sensor head to tape,
see section 4.2 on page 10.)
Exchange the magnetic tape.
Adjust the height/angle of the sensor
head. To check, move the sensor head
by hand over the entire measuring
range and check the LED function
indicator.
Exchange the magnetic tape.
Attach the sensor head at a shorter
distance from the measuring tape.
Check the orientation of the magnetic
tape:
(For alignment of sensor head to tape,
see section 4.2 on page 10.)
Exchange the magnetic tape.
Correctly position/orient the sensor
head (see section 4 on page 10).