Arched Movement - Balluff BML-S1G0-B7-M5E-0-S284 Serie Betriebsanleitung

BML-S1G0-B/S7_ _-M5E_-_0-(SA26-)S284
Absolute Magnetically Coded Position Measuring System
4
Installation and connection (continued)
4.1.2 Arched movement (< 360°)
In this application, diameters from 300 mm can be
measured. A BML-M0_-A55-A_-M_ _ _ _-E linear
magnetic tape (see section 10.1 on page 31) is fastened
to the perimeter of the rotary movement.
Notes:
– The two magnetic tapes must be at least
60 mm apart.
– The sensor head may leave the magnetic
tape. When approaching the magnetic tape,
the sequence begins as described in section
5.3 on page 15.
–Roll +Roll
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Fig. 4-2: Distances and tolerances with arched movement
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Active measuring surface
Free area of magnetizable
material
Direction of travel
Forwards, A (Sin) before B
(Cos), SSI or BiSS position
increasing with rising output,
decreasing with falling
output
60.1
−X +X
60.1
45
Z
35.2
Distances/angles
Z On arched, linear standard tapes,
(sensor/magnetic Z depends on diameter D.
tape gap)
D = 300 mm
D = 400 mm
D = 500 mm
D = 600 mm
D = 700 mm
D = 800 mm
D = 1000 mm
D = 1500 mm
D = 2000 mm
With a cover strip, the air gap is
reduced by 0.15 mm.
Y (side offset) 3±0.5 mm
X (tangential offset) ±0.5 mm
Pitch ≤ ±0.5°
Yaw ≤ ±0.2°
Roll ≤ ±0.5°
With a side offset y ≤ ±0.5 mm and a tangential offset of ±0.5 mm. If the
1)
side offset is lower, larger air gaps can be achieved.
Only possible without cover strip.
2)
Tab. 4-2: Angles, distances, and tolerances with arched applications
Y
+Yaw
–Yaw
–Pitch
+Pitch
1)
Z ≤ 0.1 mm
2)
Z ≤ 0.2 mm
Z ≤ 0.3 mm
Z ≤ 0.4 mm
Z ≤ 0.5 mm
Z ≤ 0.5 mm
Z ≤ 0.6 mm
Z ≤ 0.6 mm
Z ≤ 0.7 mm
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