WAGO 8FDI 24V PROFIsafe 750-662/000-004 Manual page 119

WAGO I/O System
750-662/000-004 8FDI 24V PROFIsafe
F
Failure
Termination of the capacity of a unit to perform the required function (see also
"Dangerous Failure").
FG (Functional Ground)
Function ground (FG) is not the same as protective earth (PE) according to
VDE 0100 and is only used as an EMC ground connector.
F Parameters
Parameters for configuring data communication between the safe PLC and the
F I/O module
Force-Guided Contacts, Positively Driven Relays
Force-guided contacts or positively driven operation refers to a contact system
where break contacts and make contacts can never be opened or closed at the
same time. It must be ensured that a contact gap of min. 0.5 mm is present
throughout the service life and in the faulted state (contact welding). Relays with
force-guiced/positively driving contacts are elementary relays governed by
standard according to IEC EN 61810-1 with special additional properties based
on the contact set, whose requirements are formulated in EN 50205 (see also
"Actuator").
Function Block
Software block executed in a unit that performs a sub-function
FVi
Failsafe Values Input
FVo
Failsafe Values Output
H
Hardware Fault Tolerance
Capacity of a safety-oriented unit, subsystem or subsystem element to continue
executing a required safety function even when an error exists
Hazardous Situation
Circumstance in which a person is exposed to at least one hazard. This situation
leads to injury immediately or over a period of time.
I
Individual Parameters (iPar)
Individual or device-specific parameters of a safe unit or safe device.
Version 1.0.0, valid from HW/SW Version 01/01
Glossary 119
Manual