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WCS position encoding system
Mounting the Code Rail
Note!
Circular Path
Note the following special features of a closed route (circular path, oval, etc.): due to the
operating mode of the WCS, you cannot route the code rail continuously along the entire
circuit.
Maintain an offset of at least 85 mm between the beginning and the end of the code rail. Where
the code rail is interrupted, the controller receives the value "OUT"—reader outside the code
rail—from the reader. Using two consecutive staggered heads enables continuous route
information at all points of the circular path. In this case, when it receives the "OUT" message,
the controller switches to the position value of the second reader.
Example
Figure 7.6
7.2
Mounting the WCS2 Code Rail with the Aluminum Profile System
A special aluminum profile system has been developed for quick mounting of the 55 mm WCS2
code rail made from plastic laminate or stainless steel. The aluminum profile is designed to
support the code rail and the guide trolley. The guide trolley safeguards the optimum position of
the reader in relation to the code rail at all times and compensates for running tolerances
between the vehicle and the WCS system. At the same time, the reader is decoupled from
vehicle vibrations. The aluminum profile system can be mounted in any location. The profile
rails are supplied in 5 m long pieces and are sawed with a 45° miter at the ends. The aluminum
profile rail is powder-coated and can be supplied in bend segments on request.
Tip
For normal industrial applications, using the laminate code rail has proven successful. With its
low weight and cost advantages, the benefits of the code rail include installation, in particular
when installing longer sections.
For extreme operating conditions, we recommend the stainless steel code rail:
Flying sparks in a welding shop
Heavy contamination during operation (e.g., waste incineration)
Use of the cleaning brushes on the guide trolley
Application example: mounting brackets, straight section and curve
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