Determining Orientation; Attaching Sensing Head - Balluff BML-S1A-Q/A-M-0-S184/KA Serie Manual De Instrucciones

BML-S1A_-Q/A_ _ _-M_ _ _-_0-S184/KA_ _
Linear Position Encoder
4 Installing the Sensor (cont.)
4.2

Determining orientation

The alignments at the front, rear and
left are referred to in the installation
description and are essential for the
correct installation of the sensing
head and tape. Starting from the
travel direction of the sensing head
the orientations are defined in
Fig. 4-5.
left side
Travel direction
right side
Reference point
Fig. 4-5: Orientation
4.3 Attaching sensor head
The sensor head is attached to the
moving machine member using its
right or left side.
Drill two through-holes or threaded
holes in the machine member;
observe a height tolerance of
0.1 mm.
To increase the tolerance, the
optional adapter plate with through-
holes (p. 15) can be used.
Important!
No forces allowed on the housing
cable. Provide strain relief for the
cable.
The mounting type depends on the
housing style:
1. The housing for model
BML-S1A2.... has two M3
threaded holes.
Machine member
Fig. 4-6: Threads in sensor head
2. The housing for model
BML-S1A1... has two through-
holes (4.3 mm) for M4 screws.
Tap the M4 threaded holes into
the machine member.
8
english
Machine member
Fig. 4-7: Threads in machine member
4.4 Attach isolator
Applies only to BML-S1A1.
For more severe EMC demands
the sensor head can be installed
completely isolated from the
machine by using two isolators
(Fig. 4-1). Tap two M3 holes into
the machine member. Insert the two
isolators right and left into the
4.3 mm holes of the sensor head.
Fig. 4-8: Isolator
Machine member
Isolator
Fig. 4-9: Installing isolator
Recommendation for selecting
the tape
Magnetic tape BML-M02-I34
The overall system accuracy with
this tape is ±10 µm
Magnetic tape BML-M02-I35
The overall system accuracy with
this tape is ±20 µm
Note:
For a detailed technical description
and installation instructions for
tapes, see User's Guide for tape at
www.balluff.de