Safety unit and an improved safety system comprising a number of safety units
AssigneeSSPN Safety System Products North AB
InventorMats Linger
Life of this patent
Estimating the term…
Abstract
A programmable safety unit for monitoring and controlling safety functions of a hazardous environment, for example an environment including hazardous machines, processes, materials, and so forth and safety equipment associated with the hazardous environment. A safety unit is adapted for external mounting, and includes a programmable safety module and a connection part that are interconnectable enabling mounting/demounting and replacement of the programmable safety module and/or the connection part. The safety unit further includes at least two connections that are programmable as safe inputs and/or outputs for direct connection to at least a number of the safety functions or equipment of the hazardous environment, and for example the machines and/or processes.
Claims20
A programmable safety unit for externally monitoring and controlling safety functions and safety equipment of a hazardous environment comprising at least one of a hazardous machine, a processes, or a material, comprising:
- a programmable safety module configured to monitor and control safety functions and safety equipment of the hazardous environment;
- a connection part;
- and
- at least two connections to the safety unit such that encapsulation requirements of an installation are fulfilled, the at least two connections being programmable as safe inputs and/or outputs for direct connection to at least a number of the safety functions and/or safety equipment of the hazardous environment, and at least one of the inputs and/or outputs is configured to detect at least one of a short circuit or a wrong connection;
- wherein the programmable safety module and the connection part interconnect such that encapsulation and interconnection is provided that fulfills installation and encapsulation requirements regarding solid particle protection and liquid ingress protection of the installation, and such that the programmable safety module and the connection part are configured to be mounted, demounted, and replaced;
- the programmable safety unit handles all safety related signals to and from the hazardous environment;
- and
- the programmable safety unit is configured to mount externally to the hazardous environment.
A programmable safety unit for externally monitoring and controlling safety functions in a hazardous environment including a gate for a person to access to a hazardous machine or hazardous process in the hazardous environment, comprising:
- a programmable safety module configured to monitor and control the complete safety functions of the gate, and configured to stop the hazardous machine or hazardous process to prevent an accident to the person;
- a connection part;
- and
- at least two connections to the safety unit such that encapsulation requirements of an installation are fulfilled, the at least two connections being programmable as safe inputs and/or outputs for direct connection to at least a number of the complete safety functions for the gate, and at least one of the inputs and/or outputs is configured to detect at least one of a short circuit or a wrong connection;
- and
- wherein the programmable safety module and the connection part interconnect such that encapsulation and interconnection is provided that fulfills installation and encapsulation requirements of the instillation, and such that the programmable safety module and the connection part are configured to be mounted, demounted, and replaced;
- the programmable safety unit handles all safety related signals to and from the safety functions;
- and
- the programmable safety unit is configured to mount externally to the hazardous environment.
Dependencies are inferred from the claim text.