Product Description; El1904 - Twinsafe Terminal With 4 Digital Fail-Safe Inputs; Fig. 4 El1904 - Twinsafe Terminal With 4 Digital Fail-Safe Inputs - Beckhoff EL1904 Operating Instructions Manual

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Product description

4.1 EL1904 – TwinSAFE terminal with 4 digital fail-safe
inputs
The EL1904 is a digital input terminal for encoder with potential-free contacts for 24 V
has 4 fail-safe inputs.
With two-channel connection, the EL1904 meets the requirements of IEC 61508:2010 SIL 3,
EN ISO 13849-1:2015 (Cat 4, PL e), NRTL, UL508, UL1998 and UL991.
The TwinSAFE terminal has the typical design of an EtherCAT terminal.
Fig. 4: EL1904 – TwinSAFE terminal with 4 digital fail-safe inputs
EL1904 Version: 3.0.0
Product description
. The Bus Terminal
DC
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