Machine - assembly equipped with a propulsion mechanism other than human or animal muscle strength

Activation of protective equipment - when the protective equipment starts to operate when body movement is detected

Risk analysis - identification of events that may lead to the emergence of risk

Security - no risk state

Complete system halt - cessation of threatening motion after sensor activation

Access time - time determining access to the hazardous parts of the machine

Access frequency - number of access events to the protection zone per unit of time

Defect - the inability to perform the function of the object, with the exception of maintenance and planned repairs; Hazardous Defect - Any hazardous defect; a fault that does not change the safety status - the safety functions remain unchanged

Safety features:

  • basic - disrupting them would increase the risk of injuries and the health condition of the machine operator
  • unconditional - their purpose is to ensure safety
  • conditional - are not directly related to the safety function
  • indirect - disrupting them does not pose a direct threat, but weakens the level of security

Electro-sensitive protective equipment (EWO) - a set of components or devices working for self-protection, these are devices for sensing, controlling and monitoring as well as switching input signals

Safety-related elements of control systems - is responsible for input signals, generating output signals

Safety functions of control systems - they enable the achievement of the safe state of the machine, they are the result of input signals of control system elements

Machine hazardous function - function causing the hazard

Usage Information - security measures such as signs, symbols, charts, texts

Isolating and dissipating energy - isolation of the machine, i.e. its disconnection, closing of isolated units, energy dissipation or containment, checking the effectiveness of the procedure carried out

Category - division of control system elements in terms of defects and resistance

Position switch - it is influenced by the moving part of the machine

Reliability - the ability of the machine to operate reliably, without failure in given conditions and time

Risk assessment - identification of economic, environmental and social factors about the risk

Safety distance - distance between the protection zone and the danger zone

Operator - a person responsible for the installation, use, maintenance and repair of machines

Cover - a part of the machine providing protection, for example door, housing, cover; permanent guard - permanently connected with the place of its installation; movable guard - can be opened; adjustable guard - fixed or movable, with adjustable position; locking guard - equipped with locking elements, for example, bolt systems; control guard - equipped with locking elements to prevent operation when the guard is not closed

Machine design - construction, transport, use, decommissioning with the development of instructions for the phases of the "life" of the machine

Susceptibility to repair and maintenance - adapting the device to restore the condition necessary for safe operation

Reasonably foreseeable misuse - use of the machine in conditions not recommended for this

Redundancy - using another machine, part or system after a failure to ensure continuity of work

Reset - restoration of safety functions

Risk - the likelihood of the damage occurring and its severity; tolerated risk - accepted in the given circumstances

Self-supervision - automatic supervision activating safety measures in the event of limitation of the ability of a part to perform its function

Danger zone - a space where a person is exposed to injuries

Emergency situation - a situation in which a person is exposed to threats

Pity - damage, physical trauma to health, property, environmental degradation

Security measures - designed to reduce risk and achieve tolerated risk

Protective measures - used to protect persons from dangers which cannot be completely eliminated

Startup of the machine - commencement of operation of the machine or its parts; unexpected start - caused by damage, restoration of power supply, operation of the control element at an inappropriate moment, action of the machine, e.g. gravity, auto-ignition of the engine

Locking device - prevents the operation of a machine element

Protective device - alone or with cover reduces the risk

Overrun monitoring device - transmits a signal that prevents the device from being switched on again

Automatic distance device - stops the machine or its elements when crossing the protection zone

Limiting device - prevents the device from exceeding the limit values

Mechanical restraining device - having a mechanical barrier to prevent risky movements

Locking device - locks the machine guard

Supported control device - runs until the control element is turned on

Two-hand control devices - requires two hands to protect the operator

Step control devices - they allow you to work only in a given part of the room

Devices that restrict access - have physical obstacles to the danger zone

Enabling control devices - when turned on manually, allows you to do the work

Damage - the machine is not able to perform the given function

Using the machine as intended - correct use of the machine

Danger - creates possible trauma

Suspension - suspension of one or more safety functions while the machine is running

Harmful event - occurs when the emergency becomes a damage

Detection Ability - sensitivity parameter which causes activation of the protective equipment

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