17
Glossary
Collision protection field
The collision protection field detects oncoming industrial trucks
in narrow aisles based on the reference target. It has a greater
scanning range than a protective field. With the collision protection
field, collisions of industrial trucks in narrow aisles can be safely
prevented.
The collision protection field is not suitable for detecting people.
The collision protection field may only be used in narrow aisles.
Contour detection field
The contour detection field monitors a contour of the environment.
The electro-sensitive protective device switches the associated
safety outputs to the OFF state if a contour does not correspond to
the set specifications, e.g. because a door or flap is open.
Control input
A control input receives signals, e.g. from the machine or from
the control. Use of control inputs is how the protective device
receives information about the conditions at the machine, e.g., if
there is a change of operating mode. If the protective device is
configured appropriately, it will activate a different monitoring case
after receiving a new control input.
The control input information must be transmitted reliably. Gener‐
ally, at least 2 separate channels are used to do this.
Depending on the device, a control input can be realized as a
static control input or a dynamic control input.
Dangerous state
A dangerous state is a status of the machine or facility, where
people may be injured. Protective devices prevent this risk if the
machine is operated within its intended use.
The figures in this document always show the dangerous state of
the machine as movement of a machine part. In practice, there
are different dangerous states, such as:
•
Machine movements
•
Electrical parts
•
Visible and invisible beam
•
A combination of multiple hazards
Electro-sensitive protective
device
An electro-sensitive protective device is a device or system of
devices for safety-related detection of people or parts of the body.
It is used to protect people from machines and facilities that pose
a risk of injury. It triggers the machine or facility to adopt a safe
state before a person is exposed to a hazardous situation.
Examples: Safety light curtain, safety laser scanner.
ESD
Electrostatic discharge
ESPE
Electro-sensitive protective device
Field set
A field set consists of one or more fields. The fields in a field set
are monitored simultaneously.
A field set can contain different field types, e.g., a protective field
and a warning field.
Hazardous area
Hazardous area is any space within and/or around machinery in
which a person can be exposed to a hazard. (ISO 12100)
Monitoring case
A monitoring case indicates the machine status to the sensor.
Generally, one field set is assigned to each monitoring case.
The sensor receives a defined signal for the current machine
status. When a signal change occurs, the sensor activates the
monitoring case and thereby the field set that is associated with
the new machine status.
17
GLOSSARY
138
O P E R A T I N G I N S T R U C T I O N S | microScan3 Core I/O AIDA
8017784/1ELL/2022-01-21 | SICK
Subject to change without notice
