STO function with EP7211-0034 (category 3, PL d)
EP7211-0034 - STO Function
11
Version: 1.0.0
WARNING
Wiring only with separate sheathed cable
The wiring between the EL2904 and the STO input of the EP7211-0034 must be done with a separate
sheathed cable in order to be able to assume a fault exclusion for the cross-circuit or external power supply
of the wiring between EL2904 and EP7211-0034. A forwarding of the STO-Signal to further EP7211-0034
must also be done with a separate sheathed cable.
The evaluation of this wiring and the evaluation of whether the fault exclusion is permissible must be done
by the machine manufacturer or user.
NOTE
Calculation EP7211-0034
The EP7211-0034 is not taken into account in the calculation of the Performance Level according to
DIN EN ISO 13849-1 since it behaves interference-free to the safety function.
The PFH
D
value goes into the calculation according to EN 62061 with a value of 0.
3.1
Parameters of the safe input and output terminals
EL1904
Parameter
Value
Sensor test channel 1 active
Yes
Sensor test channel 2 active
Yes
Sensor test channel 3 active
Yes
Sensor test channel 4 active
Yes
Logic channel 1 and 2
Single Logic
Logic channel 3 and 4
Single Logic
EL2904
Parameter
Value
Current measurement active
No
Output test pulses active
Yes
3.2
Block formation and safety loops
3.2.1
Safety function 1
Содержание EP7211-0034
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