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| EKS Light - access control system Extending its EKS access control system, in the coming months Euchner plans to introduce its simplified version called EKS Lite.
EKS Lite key adapters are read-only devices, all programming is performed using DIP switches.
Communication is carried out with a 4-bit parallel output signal. In practice, these are 4 independent digital outputs that can be directly connected to the inputs of a PLC controller.
This simplifies system installation on existing machines, as no integration with the bus is required by means of the 3964R protocol.
Key adapters will come in two types:
- access control readers with 1-15 access levels
- a reader featuring two extra safety contacts
Keys compatibility with the existing key adapters is an extra advantage.
If interested, have a look at the short presentation of the new type. More information.
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| Euchner’s Product Libraries for the SISTEMA software Similarly to most other leading safety equipment manufacturers Euchner has made available the libraries of its products designed for the SISTEMA software. Libraries for download:
English version
German version The SISTEMA software tools are intended for programmers and developers working on machine safety. The package provides comprehensive support in safety evaluation in accordance to ISO 13849-1.
The tool allows for safety elements structure to be identified based on the predefined architecture, which enables automatic computation of the Reliability Level (RL) and the Performance Level (PL).
The program is free and available for download from the BGIA institute website:
download Components and functional blocks are introduced in dialog boxes, step by step, taking into account the required Performance Level (PLr), SRP/CS category, Common Cause Failures (CCF), Mean Time To Failure dangerous (MTTFd) and average Diagnostics Coverage (DCavg).
Each parameter modification is immediately indicated on the user interface, with detailed presentation of its influence on the entire system. This allows the user to save the time which would have otherwise be required for the analysis of tables and computation of complex formulas.
Results can be printed as a summary. |
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| E-Stop Safety Button from Euchner In accordance with the EN ISO 13850 standard, the emergency stop function is supposed to eliminate or mitigate risks to personnel and risks of machine damage. Both these goals are achieved by a single use of the safety button. The function is possible when the machine control device is equipped with a mushroom safety pushbutton, red against yellow background. Safety stop pushbuttons are intended as an addition for autonomous safety equipment such as safety switches located on machine doors.
Euchner, the world’s leading manufacturer of safety switches, has expanded its portfolio with the E-Stop safety pushbuttons. The key feature of all safety switches from Euchner is their innovative technology. The ES...XW... series feature a separate block which monitors the operation of the main switching element. Any accidental displacement of the contacts automatically triggers the emergency stop. The ES-XN... switches have a protective flange which allows for padlocking the safety switch in the switched-on position. Switching off by unauthorized persons is thus made impossible. Such a solution ensures that the machine cannot be switched on during maintenance. Euchner safety buttons are equipped with a highly sophisticated reset mechanism. Most switches can be reset both by turn and by pulling. Lastly, many users will be certainly interested to hear that all the presented buttons from Euchner will be also available with a backlight.
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| Locking in prevented – the new safety switch STF prevents unintentional locking inside a danger area. EUCHNER GmbH + Co. KG from Leinfelden near Stuttgart is also presenting many new products this year. One of these new products is the safety switch STF with guard locking, guard locking monitoring and additional latch.
The STF is based on the proven principle of the EUCHNER safety switch STP with springactuated guard locking. However, the STF also has a latch for the guard locking pin. As a result it is no longer possible for maintenance or cleaning personnel to become unintentionally locked inside the danger area. A safety guard and therefore also the guard locking always remain in their actual state when the STF is isolated electrically (for example system shutdown, power failure…).
The guard either remains locked, i.e. the user cannot enter the danger area at all if the guard locking is closed and the power fails at the same time. Or the guard can be opened and closed as required. In this case (guard locking already open and power failure) there is no danger of unintentional locking inside the danger area, for example, due to the guard slamming shut. The guard locking cannot be activated in the opened state if there is a power failure due to the latch on the guard locking pin, locking inside is therefore prevented.
Due to the combination of a plastic switch housing with a metal head, the STF is very robust and is for use in all applications in which high locking forces are required.
The safety switch STF with guard locking will be available from autumn 2006. |
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| The first non-contact guard locking EUCHNER expands its non-contact safety switches CEM with solenoids. Due to the integrated monitoring of the solenoid, the switch can be used for guard locking with guard locking monitoring.
The proven transponder-based safety switch CEM with solenoid has been expanded with a new feature –the familiar switch is now also available with monitored guard locking.
The CEM system is suitable for safety category 4 applications. The integrated electronics in the switch interrupt the data transfer between CEM actuator and read head if the adhesive force is inadequate, the safety outputs on the CES evaluation unit are switched off immediately.
EUCHNER is therefore placing on the market the first real non-contact guard locking according to EN 1088.
The adhesive force of the solenoid in the CEM read head in conjunction with the CEM actuator keeps a safety guard closed until the hazardous machine movement has come to a stop. The adhesive force between solenoid and actuator is, depending on the switch version, 500 N or 1000 N. Even if the user applies very high force, the opening of the safety guard is effectively prevented.
The transponder technology in combination with a CES evaluation unit provides tamper-proof operation for the user. Up to 4 CEM read heads can be connected to the external evaluation unit using M8 plug connectors. The CEM safety switches in versions with or without solenoid monitoring are absolutely identical both in terms of the connections and the fixing dimensions. The switch that matches the safety level required can be fitted.
If the interlocking solenoid is switched off, the read head is fully de-magnetized. This action is achieved by multiple polarization reversal. When installed vertically, this feature ensures that even very fine pieces of metal swarf "drop off" the surface of the CEM – the switch can therefore also be used on machines used for machining metal. |
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| New hand-held pendant station, HBA-096692 More flexibility - an addition has been made to the proven EUCHNER
hand-held pendant stations. The latest member of the HBA family has
a keypad with 14 freely configurable keys including LEDs.
EUCHNER has been successful on the hand-held pendant
station market for more than 20 years. Along with the two
familiar housing versions, HBE and HBL, the housing series
HBA has also been developed successfully. With the new
variant, the HBA-096692, the company is now presenting a
device that enables the keypad to be flexibly designed and
configured.
With the new hand-held pendant station, HBA-096692, EUCHNER is
addressing the increasing market demands for a hand-held
pendent station of flexible design. The device is now available with
14 freely configurable membrane keys. Symbols and function can
be applied to these keys as required using printed slide-in strips.
All membrane keys are also equipped with white LEDs that indicate
important information on the status of the key to the user. For
example, LED off signifies that the key is inactive, LED on could signify "key active"
and a flashing LED could be a prompt to press a specific key.
As the slide-in strips can be printed using any conventional color printer, it is also
possible to use color symbols. The circular layout of the four keys on the lower part
of the device could be used for directions of travel (e.g. x+; x-; y+; y-). Using the key
in the middle, fast movement could be enabled, for example.
To ease the design and configuration of the slide-in strips for the user, a template can
be downloaded from www.euchner.de. This template contains standard symbols and
instructions on labeling.
In addition, a built-in emergency stop and a maximum of ten enabling switches make it
possible to use the hand-held pendant stations in the danger area. |
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