BECKHOFF EK1914 - Manual (Page 17)

Product description
EK1914 15
Permissible ambient temperature (operation) 0 ℃ to +55 ℃
Permissible ambient temperature
(transport/storage) -25 ℃ to +70 ℃
Permissible air humidity 5 % to 95 %, non-condensing
Permissible air pressure
(operation/storage/transport) 750 hPa to 1100 hPa
Climate category according to EN 60721-3-3 3K3
Permissible level of contamination level of contamination 2
(comply with the chapter Cleaning)
Impermissible operating conditions TwinSAFE Bus Couplers must not be used under
the following operating conditions:
•
under the influence of ionizing radiation
•
in corrosive environments
•
in an environment that leads to
unacceptable soiling of the Bus Coupler
EMC immunity/emission according to EN 61000-6-2 / EN 61000-6-4
Vibration / shock resistance according to EN 60068-2-6 / EN 60068-2-27
Shocks 15 g with pulse duration 11 ms in all three axes
Protection class IP20
Permitted operating environment control cabinet or terminal box with minimum
protection class IP54 according to IEC 60529
Permissible installation position see section Installation position and minimum
distances
Approvals CE, TÜV SÜD, UL
3.4 Safety parameters
Key figures EK1914
Lifetime [a] 20
Prooftest Interval [a] not required 1)
PFH 2.64E-09
%SIL3 2.64%
PFD 3.92E-05
%SIL3 3.92%
MTTFd [a] >100 (1470,59)
DC 98.56%, CAT4
SFF >99%
Performance level PL e
Category 4
HFT 1
Element classification* Type A
*) Classification according to EN 61508-2:2010 (see chapters 7.4.4.1.2 and 7.4.4.1.3)
The TwinSAFE Bus Coupler can be used for safety-related applications within the meaning of EN ISO
13849-1 up to PL e (Cat4).
1) Special proof tests during the entire service life of the TwinSAFE Bus Coupler are not required.