Construction And Function; Function - Balluff BML SF2-I2 -A- Z 5-KA Serie Manual De Instrucciones

BML SF2-I2 _ _ -A/QZ _ _ - Z _ _ 5-...
Incremental magnetic encoder system
3

Construction and function

3.1

Function

The BML is a non-contact incremental magnetic linear
encoder consisting of a sensor head and magnetic tape.
The sensor head and magnetic tape are mounted on the
machine. The magnetic tape includes alternating north and
south magnetic poles. The incremental sensor in the
sensor head measures the alternating magnetic field.
Moving without any contact over the magnetic tape, the
sensor in the sensor head detects the magnetic periods so
that the controller can determine the distance traveled.
The system is available with or without a reference point
function. In systems with the reference point function, the
reference point is integrated in the magnetic tape and the
function is implemented via magnetic sampling.
Not all variants cover the functions shown; there
may be some deviation from the figures shown.
Overview – Variants
BML SF2-_ _01-.../
BML SF2-_ _21-...
– Longitudinal variant
– No reference sensor
Incremental sensor
Reference sensor
Fig. 3-1: Variant overview
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BML SF2-_ _02-.../
BML SF2-_ _22-...
– Transverse variant
– No reference sensor
BML SF2-_ _11-...
– Longitudinal variant
– With reference sensor
BML SF2-_ _12-...
– Transverse variant
– With reference sensor
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