Field device used for being assembled in area 1 and raising safety

Abstract

The present invention relates to a field device, such as a field module used for connecting a sensor / actuator with unsafe nature; a contact protection plate; and a method used for raising safety to perform connection or wiring for the field device with unsafe nature. The field device is used in an explosive dangerous environment, thus an obvious wiring problem exists. In order to reduce the problem and save space, the module has contact holes for connection, the contact holes are preferably configured into self-sustaining elastic loading and releasable terminal contacts, wherein, the unused contact holes are configured to be protected by the protection plate. In order to be arranged on a plug, the protection plate used for protecting the contact holes of the plug has at least one guide piece along a plug-in direction and a protection surface used for covering the contact holes horizontally with the guide piece, wherein, the protection surface has notches at an edge horizontal to the protection surface in separation grids of the contact holes. Therefore, a covering lug boss used for protecting the contact holes respectively is formed.

Description

technical field [0001] The invention relates to a field device, such as a field device with at least one interface for an intrinsically unsafe field device, such as a sensor / actuator, and for being installed in a housing together with a possibly intrinsically safe sensor / actuator. module. [0002] Furthermore, the invention relates to a shield for protecting the contact openings of a plug having contact pins arranged in a separation grid and contact pins arranged in rows in the same separation grid for insertion into conductors. hole. [0003] Finally, the invention relates to a method for contacting or wiring intrinsically unsafe field devices preferably with increased safety. Background technique [0004] Current devices and methods are described in DE 19714868 A1, EP 0 338 259 A2, WO 2009, 118028 A1. [0005] The field bus connects field devices, so-called input / output (I / O) devices such as probes (sensors) and actuators (actuators), in the plant for communication with...

AI Technical Summary

Problems solved by technology

[0017] However, this does not solve the problems arising in switchgears and switchrooms, since modules with cable tails or wire ends exist in many different variants to cover the various cable lengths necessary for the use of switchgears and switchrooms

Special, separately installed terminal blocks in the Ex-e embodiment are necessary to connect field conductors, which require additional space and generate costs, since unused conductors also have to be pre-wired

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