Response Times; Safe Response Time Of Digital Inputs In The Event Of A Failure - WAGO 750-666/000-003 Manual

40 Device Description
4.6.9

Response Times

4.6.9.1

Safe Response Time of Digital Inputs in the Event of a Failure

Only use response times in the event of a failure for the safety response time!
To prevent any personal injury or property damage, only use the values of the safe
response time for errors for defining the safety response time.
For the safety response time, take into account the execution times of the
internal bus, fieldbus and cycle time of the safe PLC!
To prevent any personal injury or property damage, always take the execution
times of the internal data bus and of the fieldbus and the cycle time of the safe
PLC into account when calculating the safety response time.
The safe response time of the digital inputs indicates the maximum time from a
signal change on one single-channel input or two two-channel digital inputs to
preparation of the PROFIsafe telegram on the internal bus. It is part of the safety
response time of a safety application.
Therefore, take into account the execution times or response times of the safe
sensors and actuators used, internal bus, fieldbus, as well as the cycle time of the
safe PLC when designing the safety response time.
The safe response time of the digital inputs significantly depends on the
configured input filter time. Changing the input filter time changes the safe
response time of the digital inputs.
The safe response time can differ depending on the device configuration for each
digital input or for the individual input pars (for dual channel evaluation). You
can, for example, set the Dual channel evaluation parameter to "yes" and the
value of the Valence evaluation to "Equivalent". In this case, the affected input
pair has a quicker safe response time than, for example, a single-channel digital
input used or if you have set the Valence evaluation parameter to "Antivalent".
The safe response times listed in the following table refer to an individual digital
input or an individual input par that is analyzed two-channel.
Configuring the PROFIsafe I/O module is described in the section
"Parameterization with the WAGO Parameterization Tool".
750-666/000-003 4FDI/2FDO 24V/10A PROFIsafe V2 iPar
Version 1.2.0, valid from HW/SW Version 01/01
WAGO-I/O-SYSTEM 750
Manual