Download - Harting

without compromising the overall safety,
reliability and flexibility of the system.
The Czech company TENAX CZ s.r.o. worked
closely with HARTING to develop a highperformance
system which offers a complete
range of functions and can be adapted to
the needs of the particular application. A
safe, simple user interface was also a major
design goal.
A functional block design that can be tailored
to individual customer needs was chosen
to meet these requirements. The company
can provide systems with automatic control,
semi-automatic control or full manual
control. Modularity is a key feature of the
mechanical design as well. All of the mechanical parts
are prefabricated, and they can be assembled to make a
building-block kit which is easy to erect and take down
again. All of the elements are designed to withstand harsh
climatic conditions and high mechanical stress (IP 65, antivandalism).
At the push of a button
Construction workers can operate the TENAX system directly
in automatic mode. The cabin can be positioned to the desired
floor by pressing a button on call boxes which are located
on each floor. The destination floor can be selected from
Fig. 1: Control box on the new
top floor
Fig. 2: Floor control boxes prepared for floor extension
the panel keyboard in the cabin. Indicator lights or text on
the display panel keep the operator informed about current
instructions and all major system status conditions.
A floor control box (PO), which can be used to request the
cabin, is located on each floor. The control boxes on the floors
have connectors where prefabricated cables are attached.
nth floor control
box
termination
panel
SPO
drives PLC K exciter circuit
2nd floor control
box
1st floor control
box
TNX
PLC S
PLC K
TNX
SPO
stable control unit
control unit mounted in the cabin
TNX bus
floor control bus
exciter circuit
PLC S
Fig. 3: Control system for special-purpose elevators
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