TwinSAFE Logic EL6900
Diagnostic 4
Diagnostic 2
Diagnostic 3 
Diagnostic 1 
Power contact
+24 V
Power contact 0 V
Top view 
Contact assembly 

EL6900 | TwinSAFE Logic

TwinSAFE enables networks with up to 1,024 TwinSAFE devices. The TwinSAFE Logic can establish 128 connections to other TwinSAFE devices. Multiple EL6900 are cascadable within a network. The EtherCAT Terminal features certified safety function blocks, which are configured according to the application to be realised. Safety functions such as emergency stop, safety door monitoring, two-hand control, etc. can thus easily be selected and linked. All blocks can be freely connected among each other and are complemented by operators such as AND, OR, etc. The required functions are configured via the TwinCAT System Manager and loaded into the EL6900 TwinSAFE Logic via the fieldbus.

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 (parameterisable)
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
Protection class IP 20
Approvals/markings Overview of TwinSAFE Certifications (PDF)
Ex-Marking II 3 G Ex nA IIC T4 Gc