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EtherCAT Terminal communication interface, TwinSAFE Logic
The EL6900 TwinSAFE component is a dedicated safety controller. It is used for the realization of safety-oriented applications on the basis of Boolean values. For this purpose, certified function blocks are available that enable the processing of safe input signals and the generation of safe output signals. The functionality of the function blocks ranges from simple Boolean functions such as AND and OR to complex function blocks for muting the safety function.
With the backup and restore function, the EL6900 additionally offers a simple way to exchange a safety controller in case of service.
The EL6900 can safely exchange data via FSoE with up to 128 safe communication devices.
The EL6900 is programmed with the TwinCAT 3 Safety Editor or with TwinCAT 2.
Special features:
safety applications on the basis of Boolean values
up to 128 safe connections
up to 255 function blocks
up to 32 TwinSAFE groups
up to 8 users
backup and restore support
Technical data EL6900
Specification link unit between safe input and output signals
Protocol TwinSAFE/Safety over EtherCAT
Cycle time approx. 500 µs/according to project size
Fault response time ≤ watchdog time (parameterizable)
Current consumption power contacts –
Current consumption E-bus typ. 188 mA
Installation position horizontal
Safety standard DIN EN ISO 13849-1:2008 (Cat. 4, PL e) and EN 61508:2010 (SIL 3)
Weight approx. 50 g
IP protection rating IP20
Ex marking II 3 G Ex nA IIC T4 Gc
Housing data EL-12-8pin
Design form compact terminal housing with signal LEDs
Material polycarbonate
Dimensions (W x H x D) 12 mm x 100 mm x 68 mm
Installation on 35 mm DIN rail, conforming to EN 60715 with lock
Side by side mounting by means of double slot and key connection
Marking labeling of the BZxxx series
Wiring solid conductor (e), flexible conductor (f) and ferrule (a): spring actuation by screwdriver
Connection cross-section s*: 0.08…2.5 mm²,
st*: 0.08…2.5 mm²,
f*: 0.14…1.5 mm²
Connection cross-section AWG s*: AWG 28…14,
st*: AWG 28…14,
f*: AWG 26…16
Stripping length 8…9 mm
Current load power contacts Imax: 10 A
*s: solid wire; st: stranded wire; f: with ferrule


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