Planning and Installation Guidelines 7
Planning and
Installation Guidelines
Technical Description
Wireless Proximity Switches / Issue: 03.2005
V 6
Fig. 1.4: Arrows on the outer insulation of the primary loop cables:
If the arrows point towards the same direction, the primary loop pairs and further primary loops arranged in
parallel are installed correctly.
●
The primary loop cables are marked in regular spacings with arrows on the outer insulation.
These arrows all have to point towards the same direction when installing a pair of primary loops
and further primary loops arranged in parallel (refer to
fig. 1.6
).
Fig. 1.3:
Arrangement of primary loops for machines with rectangular outline
Top view
3D representation
s
b
s
a
s
c
d
a
d
a
d
c
s
a
z
c
z
c
z
a
z
a
d
a
d
a
d
c
s
b
1.) The smallest side s
a
, s
c
of one loop determines the distance d
a
, d
c
to the next parallel loop:
d
a
~ (4-) 5/6 x s
a
(s
a
< s
c
< s
b
is assumed)
2.) The following constraint is valid:
Overlapping “distance” of a coil from cell border z
a
, z
c
approximately 1/6 of the smallest side s
a
, s
c
of this loop
Machine volume
Primary loops
2CDC352015F0003.EPS
Power
supply
(Principle representation: For reasons
of clarity only one pair of primary loops
is represented).
2CDC352059F0004..EPS