
2
GFK-2734
Chapter 2 Product description
2-5
Parameterization
The individual safe digital relay outputs of a safety module can be parameterized
differently. This means that the relay outputs can be adapted to various operating
conditions and different safety integrity levels can be implemented (SIL, SIL CL, Cat., PL)
(see "Connection examples for the safe relay outputs and the safety-related segment
circuit" on page 6-1).
For information about parameterization, please refer to Section "Parameterization of the
safe relay outputs" on page 5-2.
Diagnostics
Diagnostics are provided via both the local diagnostic indicators and the diagnostic
messages, which are transmitted to the safe controller (PROFIsafe) or to the configurable
logic module used (VersaSafe).
For information about the diagnostic messages of the relay outputs, please refer to Section
"Safe digital relay output errors" on page 9-3.
Requirements for
controlled
devices/actuators
The error detection of the module varies depending on the parameterization. This results
in specific requirements for the actuators.
–
Only use appropriately qualified actuators.
–
Use reliable components. These include, for example:
–
Use relays or contactors with forcibly guided N/C contacts to safely monitor the state
(pick-up, drop-out).
–
Please observe any special environmental requirements in your application when
selecting the controlled devices.
–
Please note applicable C standards in your application (e.g., EN 1010), in which, for
example, the number of controlled devices required to achieve a particular category is
specified.
–
Observe the required measures for safe isolation between areas with voltages greater
than PELV and PELV areas (for an explanation of PELV, see Section "Abbreviations
used" on page 1-6).
–
A protective circuit via the relay contacts is not permitted.
CAUTION: Diagnostic data is not safety-related
Do not use the diagnostic data to execute safety-related functions or actions.
–
Control contactors according to EN 60947-4-1
–
Power contactors
–
Relays with forcibly guided contacts according to DIN EN 50205
Содержание VersaSafe VersaPoint IC220SDL840
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