Authenza Automation LLP

Madambakkam, Chennai, Tamil Nadu

Standard in higher quality instead of do-it-yourselfThe basis of the BDF series is a slim enclosure in shock-resistant plastic, which can be quickly and smoothly fitted on the customary aluminium profile systems used in mechanical engineering and which can accommodate four control elements. As the control elements are regarded, the user can choose from a comprehensive range of illuminated pushbuttons, selector switches, signalling devices with LED, key-operated switches and standard-compliant emergency stop command devices.
Adjustable to the users needs
All control elements have the same contacts. In this way, the user can choose their position on the control panel depending on the individual requirements. Also as the labelling is regarded, the BDF control panels can be adjusted to the individual needs. To this effect, labelling areas with plastic cover are provided, in which two-layer plastic identification labels can be applied. In the course of the development, the Schmersal engineers have interviewed many customers about the desired features and functions, which such control panel should include. The results of these surveys have been integrated in the design of the BDF series.

Application:Two-hand control panels are non-separating protection devices. In general, they serve to ensure the location of both hands of a machine operator who gives a control signal for a movement which can be dangerous. Two-hand control panels thus ascertain that intervention by the operator in dangerous moving processes is avoided when a machine or plant has been started.The areas of application include presses for metal working, powder metallurgy, printing and paperprocessing machines, croppers and similar, as well as machinery in the rubber, plastic and chemical industries.Two-hand control panels are the preferred protection devices for use in setting-up work and single-stroke operations for feed and removal processes.Further information on the use of two-hand operation consoles and their evaluation is given in EN 574.In order to achieve Category 0 to EN 60204-1, an additional signal evaluation circuit is needed. Safety monitoring modules for secure evaluation of signals from two-hand control panels and Emergency Stop devices are to be found in chapter xx.
Design and mode of operation:Two-hand control panels are protection devices, which require the simultaneous use of both hands for their actuation. By virtue of their forced location, both hands are kept out of the area of danger. In order to start and continue the operation of a machine or plant which can be dangerous, the location of the hands is controlled as long as danger can continue to be present.The two-hand control panels are mounted as standard with an Emergency Stop push button to EN ISO 13850 and two operating units. In addition, there are guard hoods over the operating elements, which prevent simple manipulation of the protection function using hands, elbows, stomach, hips, thighs or knees, for example.EN 574 differentiates between various types of two-hand switching circuits with regard to their technical degree ofcontrol security. In this respect, the selection of the type depends on the evaluation and the risk assessment.