Issue 2/2005
03/02/05
Modern technology in elevators
3rd Schwelm Symposium – June 2 and 3, 2005, in Schwelm, Germany
The Schwelm Symposium will be held for the third time on June 2 and 3, 2005.
This year the use of modern technology in and around elevators will be discussed by expert speakers.
Registrations are being accepted by the Henning GmbH in Schwelm through April 30, 2004.
Category: Issue 2/2005
Posted by: Editor
The influence of new VDI Regulations on technical development in elevator engineering
The forward-looking elevator market will be reviewed with a view toward the aspect of technical progress as affected by the VDI Regulations. Their effects are seen as being just as significant as the DIN Standards and new patents.
The impetus for elevator development provided by work on the VDI Regulations is illustrated with practical examples which will lead to growth in innovations for elevator systems and safe operation at optimized cost levels.
Friedhelm Meermann, WIFA Liftagentur
Lifts without a car door subjected to EU type-examination as per the Lifts Directive
The increasing number of lifts being offered without a door on the car has increased market pressure on elevator manufacturers and the notified bodies to market such products with type-examination certification on the basis of the Machinery Directive. In this speech it will be shown, on the basis of a type examination conducted by the RWTÜV, that it is possible to market lifts without a car door, with approval based on Lifts Directive.
Burkhard Imken, RWTÜV Systems GmbH
Modern 3-D camera technology to enhance safety at elevator doors
The miniature ESPROS/TOF 3-D camera made by CEDES offers new and hitherto unknown options for registering our complex, three-dimensional world. The measurement of light lag serves as the basic technology here. Similar to the human eye, ESPROS/TOF can detect and reproduce complex reality in three dimensions. ESPROS/TOF was awarded the IST Grand Prize in October of 2003. This is the world’s premier prize for achievements in the field of information technology.
Gerhard Bräuer, Cedes AG
Symbiosis: Lift controls and frequency inverter unite in a single module
The majority of today’s elevators and their drives are regulated by frequency inverters. The obvious question here is whether frequency converters and the controls have to be two separate modules. Wouldn’t combining these two units have cost and technical advantages? The speech depicts the combining of elevator controls and the frequency inverter. New approaches are depicted in regard to both mechanical amalgamation and in the exchange of data and commands.
Peter Zdun, INTEC GmbH
Reorganization of testing in the field of elevators
With the adoption of the 95/16/EC Lifts Directive, the testing procedures required for marketing elevators within the European Economic Community changed as of 1997. In Germany, however, the authority to approve lifts for unrestricted marketing remained with the TÜV, this being due to legislation in force at the time. It was only with the amendment of the Equipment Safety Act in the year 2000, in conjunction with the Operating Safety Ordinance which went into effect on January 1, 2003, that other notified bodies were enabled to conduct the inspections specified in the Lifts Directive, without having to undertake the “tests of good order” which had been prescribed up to that date.
In addition, the Operating Safety Ordinance also shifted inspection authorization from individual persons to complete organizations. This opened up new options for operators and testing agencies in regard to the conduct of testing.
This speech is to provide a survey of contexts within the general field of elevator testing. Discussed in addition are the newly defined responsibilities of expert assessors and testing organizations and the responsibilities derived from this for assembly companies, elevator operators and testing organizations.
Stefan Vikuk, Dipl.-Ing., DEKRA Testing & Inspection GmbH
Non-contact position registration for the elevator car
The non-contacting USP position sensing system uses a new, forward-looking operating principle. In a departure from conventional magnetic switch technology and familiar rotation transducer systems, USP offers cost savings due to the simplicity of its design and freedom from maintenance requirements. This system can communicate with today’s control systems and thus is the basis for a new step forward in technology.
Stefan Dürholt, K.A. Schmersal GmbH
The Siemens AT – New Generation 18
It is quite unassuming but the AT nonetheless directs everything with complete authority. It is self-teaching, flexible and adapts perfectly to changes in requirements and operating conditions. It masters every application and brings everything together at a single point. You can remain on top of things with the AT.
Hans-Wilhelm Wilken, Siemens Services GmbH & Co. KG
Simple analysis options for quality determination in elevators with new database concepts
Elevator performance and travel qualities can be measured using portable diagnostics systems. Thus it becomes possible for the first time to effectively compare individual elevators. The new database module in the LiftPC mobile diagnosis concepts records not only measured data but other engineering features of one’s own lifts, as well, and thus enables central statistical analysis with output in the forms of tables and charts. In addition, comparison using an anonymous Internet database makes it possible to compare individual units with the average for all elevators.
Tim Ebeling, Henning GmbH
Tendering lifts taking account of measurable quality criteria, using the new City Savings Bank building in Hagen as an example
Using as an example a method for tendering lifts on the basis of measurements, I place in relationship one to another the general contractor’s selection of bidders, the owner’s requirements and expectations, and the specialist planner’s interests. What is the relation of the bid price to limit values; can higher costs be borne?
I will depict the use of a comparison of bid prices referenced to limit values, the assessment of bidders by way of reference measurements, and the approval of a specific bidder by the owner. I will also discuss the “knock-out” criteria which might be applied.
Heinz L. Schreiber, Dipl.-Ing., Ing. Büro Schreiber
Modernizing hydraulic lifts
Future modernization of hydraulic lifts by employing frequency-regulated plant for ideal savings in energy and power expenditures, high availability, stopping accuracy, low noise level and reduced wear.
Philippe Roose, Bucher Hydraulics AG
CANopen in network architec-tures for elevator control
The CANopen application profile for elevator controls can be implemented on a variety of network architectures. Particular attention will be paid to the concept of virtual and logical devices and the implementation of transparent gateways will be discussed.
Holger Zeltwanger, CIA CAN in Automaten
Introduction to various data bus systems in elevator engineering
A bus system in a lift – what is that, anyhow? When does using a bus make sense? What is CAN? What’s the difference between ACP and DCP? How do DCP_03 and DCP_04 work? What is DSP417? What is call-catching? We hope to answer these questions in today’s lecture.
Götz Benczek, Dipl.-Ing., Dietz electronic GmbH
Self-adapting control system, dependent on the path traversed
To be discussed here is a concept which is set up using a graphic interface and which calculates all the relevant data on the basis of a predetermined path and generates a travel profile as a factor of the path covered. Here intermediate speeds are automatically determined and visualized. Demonstration of a preliminary check of the travel profile.
Wolfgang Rösch, Dipl.-Ing., ascentrocic Gerätebau GmbH
The user-friendly inverter for elevator engineering
This speech describes the functions and broad application range for a frequency inverter designed especially for elevator engineering. Various tools, the Powercontrol set-up software and a hand-held terminal guarantee a high degree of user-friendliness and ease in commissioning.
Günther Stoll, Dipl.-Ing., RST Elektronik GmbH
The ZL 1 for quick location of sporadic faults in the elevator electrical system
The ZL 1 diagnostics system is used for fast troubleshooting in controls where faults occur sporadically. Both long-term measurements and measurements for specific time frames can be conducted. The ZL 1 diagnostics system can record up to 32 signals simultaneously, at voltage ranges of from 5 to 48 V AC/DC and 115 V / 230 V AC.
The data thus compiled is evaluated at a PC with the help of the special-purpose software which, owing to the familiar Windows graphic user interface, is easy to use.
Alfred Zangl, Henning GmbH
Payload measurement device featuring simple installation, without need for weights, for half-load compensation
Load detection devices used in the past to determine car payload by way of measuring rope tension have always had to be tediously calibrated with test weight following installation. New rope load sensors incorporating a patented measurement principle no longer require any weights so that the actual car weight and uniform adjustment of rope tension can be read immediately after installation.
This makes it possible for the first time ever, working in conjunction with a mobile accelerometer, to measure exactly the performance of the safeties with the car empty and to determine this value exactly for the fully loaded status.
Peter Pini, Dipl.-Ing., Henning GmbH
Information system for elevator users
The use of monitors in lobbies, in offices and at elevators is an option for making a building and its elevators more individual, user-friendly and attractive. Modern visual media technologies are used to present, for example, current information, directional signs, infotainment and status indications inside and outside the elevator.
Michael Gubisch, Dipl.-Ing., Ing. Wolfgang Schäfer GmbH
Measurable utility of modern lift drives, particularly in regard to ride quality, as per ISO 18 738
The number of gearless drives offered on the market has continued to rise for some years now. They are displacing the classical geared drive units even at low ascent heights. Ride quality measurements in elevators with various types of drives are introduced and then evaluated to determine the influence which the drive has on travel comfort.
Karl Michael Renz, OSMA Aufzüge Albert Schenk GmbH & Co. KG
Requirements for suspension means in elevator technology
Wolfram Vogel, Dr.-Ing., University of Stuttgart
Magnetic-inductive rope inspection – new devices for mobile use in elevator engineering
After a certain period in service initial damage to wire ropes is evidenced by wear and wire breaks. Using a new and handy magnetic-inductive measurement device makes it possible to positively identify all wire breaks, both external and internal. This unit, devised especially for elevator engineering, makes possible quick documentation of rope status at moderate costs.
Tim Ebeling, Henning GmbH
Modern measurement technology in elevators in a practical report by a specialist planner
Use
– Documentation within the framework of construction monitoring
– General quality checks
– Demonstration of specified traffic-handling values (time losses at stops)
– Comparative measurements for subsequent inspections
– Comparative measurements for overhaul and updating (before and after)
– Regular documentation in the spirit of the Operating Safety Ordinance
– Troubleshooting
Results
– General depiction
– Raw data
– Lift system (Rope – hydraulic, guides, central/offset)
Examples from practice
– Vibrations due to car roller guidance
– Impact effects (guide rail joints and others)
– Vibrations due to incorrect design of the hydraulics
– Comparison measurements
– Determining the amount of time lost at stops
Evaluation and options for the future
– Conditioning and evaluating results in the database
– Defining quality steps for various types of elevators and applications
Joachim Baier, Dipl.-Ing., Baier Ingenieurbüro
Avoidance and consequences of damage in elevators
The main focus in this topic is certainly to be found in avoiding and preventing damage to lifts. Damage to lifts is often the result of institutions which were active earlier and which failed in their assignments. Planners bear responsibility here, even before the installing companies.
Rudi Becker, Jappsen + Stangier Oberwesel GmbH
MRL-W1 machine-roomless lift
Changed requirements in elevator construction, joined with the expectations of the industry and users in regard to efficiency at modern levels, reduced energy consumption and reduced operating costs are the driving forces in the search for new solutions for complete systems. These efforts are explained using the development of the MRL-W1 “roomless” elevator at the Wittur AG, featuring the witty 1 drive.
Volker Thoss, Wittur K+S GmbH
Uniform adjustment of rope tension with a new measurement principle, with automatic balancing and verification, with a log
Non-uniform load distribution in the set of ropes leads to increased wear and early failure of individual ropes. A newly patented load sensor for individual ropes makes it possible to easily check the ropes for uniform load distribution and to log the results. Where deviations are detected, corrections can be made in the individual rope tensions using software assistants.
Peter Pini, Dipl.-Ing., Henning GmbH
Drive system for the mechanical room, hoistway and car
A compact drive system which can travel in the car frame or be installed stationary in the hoistway or machine room. Great flexibility and simple installation owing to the use of a installation complete set, for both new construction and modernization.
Ulrich Nees, alpha Getriebebau GmbH
The elevator and the Internet
The Internet is further gaining in significance in global communications. It may be expected that in just a few years all communications will be transmitted exclusively by this network. This speech is to indicate the effects which this will have on remote diagnostics and emergency calls in elevators and which technical preconditions will have to be met.
Jörg Hellmich, Dipl.-Ing., Böhnke + Partner Steuerungssysteme GmbH
High-quality components and trained personnel for high-quality lifts
A staff of trained and devoted specialist personnel who looks after an elevator from delivery at the site to acceptance by the owner is just as important to achieving a high-quality elevator as are the components selected: quiet-running drive, perfect roller guidance, custom-made cars from one’s own plant etc. In-house technicians identify with the products better than outside contractors. Only the best craftsmanship during assembly quality and the best possible materials can guarantee perfect system quality.
Thomas Schmidt, Aufzugswerke M.Schmitt & Sohn GmbH & Co.
2/2005
