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EL1904 | EtherCAT Terminal, 4-channel digital input, 24 V DC, TwinSAFE

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EL1904 | EtherCAT Terminal, 4-channel digital input, 24 V DC, TwinSAFE

EL1904 | EtherCAT Terminal, 4-channel digital input, 24 V DC, TwinSAFE

Input 1
Input 3
Diagnostic 1
Diagnostic 3
Input 2
Input 4
Diagnostic 2
Diagnostic 4
Power contact
+24 V
Power contact 0 V
Input 1+
Input 1–
Input 3+
Input 3–
Input 2+
Input 2-
Input 4+
Input 4–
Top view 
Contact assembly 
EL1904 | EtherCAT Terminal, 4-channel digital input, 24 V DC, TwinSAFE

EL1904 | EtherCAT Terminal, 4-channel digital input, 24 V DC, TwinSAFE

The EL1904 TwinSAFE component is a digital input terminal for sensors with potential-free contacts for 24 V DC. It has four fail-safe inputs. The signals are transmitted via FSoE to a TwinSAFE Logic-capable component and can be used there to evaluate them in terms of safety.

The EL1904 has safety parameters to adapt the functionality specifically to the respective safety-oriented requirements (e.g., 1-channel evaluation vs. 2-channel evaluation, testing of the individual channels).

The safety parameters are not stored directly on the component, but are transmitted to the input terminal via a TwinSAFE Logic-capable component when the safety application is started. This simplifies service procedures, because the component can simply be replaced. The safety-relevant parameters are transferred to the new component when the safety application is restarted.

 

Special features:

  • 4 safe inputs
  • cross-circuit detection
  • 1-channel vs. 2-channel evaluation directly on the component
  • testing of the channels can be activated individually

Product status:

regular delivery

Product information

Technical dataEL1904
Connection technology1-/2-wire
Number of inputs4
ProtocolTwinSAFE/Safety over EtherCAT
Response timetyp. 4 ms (read input/write to E-bus)
Fault response time≤ watchdog time (parameterizable)
Current consumption power contactssee documentation
Current consumption E-bustyp. 200 mA
Installation positionhorizontal
Safety standardDIN EN ISO 13849-1:2008 (Cat. 4, PL e) and EN 61508:2010 (SIL 3)
Weightapprox. 50 g
Protection ratingIP20
Ex markingATEX:
II 3 G Ex ec IIC T4 Gc
IECEx:
Ex ec IIC T4 Gc
Housing dataEL-12-8pin
Design formcompact terminal housing with signal LEDs
Materialpolycarbonate
Dimensions (W x H x D)12 mm x 100 mm x 68 mm
Installationon 35 mm DIN rail, conforming to EN 60715 with lock
Side by side mounting by means ofdouble slot and key connection
Markinglabeling of the BZxxx series
Wiringsolid conductor (s), flexible conductor (st) and ferrule (f): spring actuation by screwdriver
Connection cross-sections*: 0.08…2.5 mm²,
st*: 0.08…2.5 mm²,
f*: 0.14…1.5 mm²
Connection cross-section AWGs*: AWG28…14,
st*: AWG28…14,
f*: AWG26…16
Stripping length8…9 mm
Current load power contactsImax: 10 A

*s: solid wire; st: stranded wire; f: with ferrule

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