Beckhoff EJ6910, Operation Manual

Page: 12 / 110

Product description
EJ6910 12 Version: 1.7.0
WARNING
Commissioning test
Before the TwinSAFE EJ modules can be used for the safety task, the user must carry out
a commissioning test so that sensor and actuator wiring errors can be ruled out.
CAUTION
Note the Machinery Directive
The TwinSAFE EJ modules may only be used in machines according to the machinery di-
rective.
CAUTION
Ensure traceability
The buyer has to ensure the traceability of the device via the serial number.
3.3 Safety parameters
Key figures EJ6910
Lifetime [a] 20
Prooftest Interval [a] not required
1)
PFH
D
1.81E-09
%SIL3 of PFH
D
1.81%
PFD
avg
2.56E-05
%SIL3 of PFD
avg
2.56%
MTTF
d
high
DC high
Performance level PL e
Category 4
HFT 1
Element classification
2)
Type B
1. Special proof tests over the whole service life of the EtherCAT EJ6910 module are not required.
2. Classification according to IEC 61508-2:2010 (see chapters 7.4.4.1.2 and 7.4.4.1.3)
The EtherCAT EJ6910 module can be used for safety-related applications as defined in
IEC 61508:2010 up to SIL3 and DIN EN ISO 13849-1:2016-06 up to Cat 4, PL e.
For the calculation or estimation of the MTTF
d
value from the PFH
D
value, further information can be found in
the TwinSAFE application manual or in DIN EN ISO 13849-1:2016-06 Table K.1.