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BECKHOFF EL2904 4-CHANNEL DIGITAL OUTPUT TERMINAL 24VDC
Quick Overview
Manufactured By: BECKHOFF
Manufacturer Part Number: EL2904
IMS Product Code: 1831306
Packaging: Sold Individually
Description:
Beckhoff EL2904 4-Channel Digital Output Terminal 24VDC
The EL2904 TwinSAFE component is a digital output terminal with four channels. It switches 24 V DC actuators with up to 0.5 A per channel and has four fail-safe outputs. The outputs are controlled by a TwinSAFE Logic-capable component via FSoE. The component automatically switches off if it detects an error (fail-stop).
The EL2904 has safety parameters to specifically adapt the functionality to the respective safety requirements. For example, a current measurement at the outputs and a test of the outputs can be configured in order to be able to detect cross-circuits among other things and to react appropriately.
In addition, standard outputs can be activated for the EL2904. As a result, corresponding standard outputs are available in the process image in parallel and internally ANDed with the safe outputs of the EL2904. The safe output signals, which are controlled by a TwinSAFE Logic, thus issue the safe release for the standard signals, which can be triggered by the non-safety oriented control system independently of the cycle of the safety controller and FSoE. This allows faster switching times of the outputs, provided that the safety controller issues the necessary release for the output.
The safety parameters are not stored directly on the component, but are transmitted to the component 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 outputs
- integrated current measurement
- testing of the channels can be activated
- Standard outputs can be activated with integrated AND connection with a safe output signal
Technical Data
| Connection technology | 1-/2-wire |
| Specification | output of output signals |
| Number of outputs | 4 |
| Max. output current | 0.5 A (per channel), min. 20 mA (with active current measurement) |
| Protocol | TwinSAFE/Safety over EtherCAT |
| Fault response time | ≤ watchdog time (parameterizable) |
| Current consumption power contacts | load-dependent |
| Current consumption E-bus | typ. 221 mA |
| Installation position | horizontal |
| Safety standard | DIN EN ISO 13849-1:2008 (Cat. 4, PL e) and EN 61508:2010 (SIL 3) |
| Weight | approx. 100 g |
| IP protection rating | IP20 |
| Ex marking | II 3 G Ex nA IIC T4 Gc |
Housing Data
| Design form | compact terminal housing with signal LEDs | ||
| Material | polycarbonate | ||
| Dimensions (W x H x D) | 24 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 |
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| Connection cross-section AWG |
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| Stripping length | 8…9 mm | ||
| Current load power contacts | Imax: 10 A |
*s: solid wire; st: stranded wire; f: with ferrule
Direct From Manufacturer:
A new product, shipped directly from the manufacturer.
Lead Time: 243 to 343 Days
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