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Planning and Installation Guide
A Checklist
This list contains all important steps for the planning, installation and commissioning of a system with wireless proximity
switches WPS. It additionally contains hints and references to the relevant chapters in the handbook.
Phase
Point to be Checked
1. Planning
1.1 Sensor Related
1.1.1
Get an overview of location
and type of sensors
1.1.2
Distance to neighbouring
WPS Sensors and to metal
objects
1.1.3
Shielding: Distance of sensor
position relative to large
metal parts or short circuit
loops in the application
1.2 Power Supply Related
1.2.1
Plan primary loops: Size,
distance, number
1.2.2
Check details of planned
application:
Distance of metal objects
near loops (large short circuit
loops, metal parts)
1.2.3
Check details of the
applications surrounding
1.2.4
Chose amount and
placement of power supplies
WPU100
1.2.5
Select the mechanical
support for primary loops
1.2.6
Calculate length and amount
of primary loop cables
needed
1.2.7
Plan primary loop routing
1.2.8
Calculate current to be used See "Planning and
1.2.9
Plan safety distance for pace
maker carriers in your
application (marking and
sign)
Wireless Proximity Switches / issued: 09.2004
Technical Description
Further Details
Remark Hints
Choose WPS sensorhead type to be used
See "Planning and
Should be >2.5cm, otherwise wireless communication
Installation
and power supply will be affected.
Guidelines"
Chapter 2.9
See "Planning and
!
WPS will not work if both magnetic field directions
Installation
setup by the primary loops are shielded by metall
Guidelines"
objects or short circuit loops :
Chapter 1.7
- 1D Shielding (in one direction of the magnetic field) is
tolerable
- 2D shielding is not tolerable:
-> If short circuit loops are shielded: Interrupt at least
one loop with an isolating section
- >if large metal plates are shielding: Check if sensor
can be moved to another location
See "Planning and
- Use at least two pairs of primary loops to create a
Installation
rotating field.
Guidelines"
- Distance of parallel loops: ~ 2/3 of smallest width of a
Chapter 1.2
loop.
- The two primary loop pairs have to be orthogonal to
See "Planning and
- Interrupt large short circuit loops, also if outside of
Installation
the primary loops but close to the loops
Guidelines"
- Avoid large metal obstacles parallel to the two coil
Chapter 1.4
planes (try to keep a distance of 1/6 of the loop size to
parallel large metal objects).
- Keep the loop coils away from metal objects by at
min. 3 cm, recommended are >> 10 cm (especially
from magnetic steel objects; if the steel is magnetic can
be checked with a permanent magnet).
same as above:
metal floor, walls, poles belonging to other structures
(machines, building) close to the coils
Two loops can be connected per supply.
Mounting: Observe a distance for free airflow of 20 cm
above the supplies.
Placing the supplies close to the coils shortens the loop
wires needed, which reduces losses.
Plastic tubes/conduits are recommended
!
Metal tubes/conduits or metal cable ducts are not
allowed for the loop itself.
The primary loop wire is available in lengths from 10-
28m in steps of 1m (readily configured with ring cable
lugs)
See "Planning and
Do not route other electrical wiring in loop ducts or
Installation
directly in parallel (>15cm f. fieldbus wires; cross
Guidelines"
vertical). Plan for twisted loop wire, from the loop to the
Chapter 1.6
power supplies WPU
See the table in chapter 4.2
Installation
"Primary loop sizes and current values"
Guidelines"
Document chosen current value!
Chapter 4.2
See "Planning and
See the table in chapter 1.3
Installation
Mark pacemaker warning line on floor (e.g. in yellow-
Guidelines"
black colour), put a danger sign in high of the line and
Chapter 1.3
document place and distance.
V6
Drawing
2
3
Checklist A 1 / 3
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