16 Glossary
AGV Automated guided vehicle
Contour detection field The contour detection field monitors a contour of the environment.
T
he 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
t
he 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 ma
y 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
EDM External device monitoring
Electro-sensitive protective
de
vice
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.
ESPE Electro-sensitive protective device
EtherCAT EtherCAT® (Ethernet for Control Automation Technology) is an
E
thernet-based network used in industrial automation.
With the Safety over EtherCAT® (FSoE, FailSafe over EtherCAT)
protocol extension, EtherCAT® is also suitable for safety-related
data communication.
External device monitoring The external device monitoring (EDM) monitors the status of down‐
s
tream contactors.
In order to use external device monitoring, positively guided con‐
tactors must be used to switch off the machine. If the auxiliary
contacts of the positively guided contactors are connected to the
external device monitoring, the external device monitoring checks
whether the contactors switch correctly when the OSSDs are
switched off.
Field set A field set consists of one or more fields. The fields in a field set
ar
e monitored simultaneously.
A field set can contain different field types, e.g., a protective field
and a warning field.
GLOSSARY 16
8025919/1I9E/2023-01-09 | SICK O P E R A T I N G I N S T R U C T I O N S | safeVisionary2
101
Subject to change without notice
To Next Page
Loading...
