BECKHOFF EL6900-FB - Manual (Page 33)

Function blocks
Function blocks for TwinSAFE logic terminals 31
3.4.2 Signal description
Table 3-16: FB ESTOP inputs
Name Permitted type Description
Restart TwinSAFE-In
FB-Out
Standard-In
The 0->1->0 signal sequence must be detected on the restart input,
during start (when the related TwinSAFE group is started), or restart
(when an input has requested the safe state), before the safe state of
the outputs can be removed.
EStopIn1 TwinSAFE-In
FB-Out
1 st input channel: The parameterization determines, whether the input
will be a normally closed contact (Break contact – safe state will be
requested by logical 0) or normally open contact (Make contact – safe
state will be requested by logical 1).
EStopIn2 TwinSAFE-In
FB-Out
2 nd input channel, behaves like EStopIn1
If the discrepancy time is not equal 0, the 1 st and 2 nd input channel are
considered to be the 1 st input pair and a discrepancy time monitoring is
carried out between both channels.
EStopIn3 TwinSAFE-In
FB-Out
3 rd input channel or 1 st input channel of the 2 nd input pair, otherwise
corresponds with EStopIn1
EStopIn4 TwinSAFE-In
FB-Out
4 th input channel or 2 nd input channel of the 2 nd input pair, otherwise
corresponds with EstopIn2
EStopIn5 TwinSAFE-In
FB-Out
5 th input channel or 1 st input channel of the 3 rd input pair, otherwise
corresponds with EStopIn1
EStopIn6 TwinSAFE-In
FB-Out
6 th input channel or 2 nd input channel of the 3 rd input pair, otherwise
corresponds with EstopIn2
EStopIn7 TwinSAFE-In
FB-Out
7 th input channel or 1 st input channel of the 4 th input pair, otherwise
corresponds with EStopIn1
EStopIn8 TwinSAFE-In
FB-Out
8 th input channel or 2 nd input channel of the 4 th input pair, otherwise
corresponds with EstopIn2
EDM1 TwinSAFE-In
FB-Out
Standard-In
EDM1 is the feedback loop for the non-delayed output channel
(EStopOut). If this input is parameterized as active, the safe state of the
outputs will only be exited during restart, when the EDM1 supplies the
"1" signal.
EDM2 TwinSAFE-In
FB-Out
Standard-In
EDM2 is the feedback loop for the delayed switching of the output
channel (EStopDelOut). If this input is parameterized as active, the safe
state of the outputs will only be exited during restart, when the EDM2
supplies the "1" signal.