1 5 Digital output EL27xx Digital output | Triac outputs up to 230 V AC EtherCAT Terminal 136 In applications with particularly frequent switching operations the service life of a mechanical relay is potentially very short. An electronic switch in the form of triacs and Mosfet transistors is an almost wear-free replacement. A triac is a robust switch and will only be used as a zero crossing switch in the EtherCAT Terminals. Switch-on only occurs in zero crossing voltage and switch-off only in zero crossing current. Inductive loads are therefore switched off without overvoltage. The disadvantage of a Triac is a relatively high voltage drop in switched-on state, which leads to a higher power dissipation compared to a relay contact. An essential protective circuit leads to a leakage current in switched-off state. The output is not safely isolated from the mains. Triacs need a minimum load so that they remain switched-on, and a minimum voltage for error-free zero crossing detection. When fusing EtherCAT Terminals from the triac family it should be noted that electronic switches cannot withstand high short-circuit currents. The fuses which are used should at least be fast-acting (characteristic: F) with low rated/reference current. 2-channel triac output terminal, up to 230 V AC 2-channel triac output terminal, up to 230 V AC, no power contacts Technical data EL2712 | ES2712 EL2722 | ES2722 EL2732 | ES2732 Connection technology triac output, 2-wire Load type ohmic, inductive Max. output current 0.5 A 1 A (0.5 A if both 0.5 A outputs are on) Switching times in zero crossing, 0.1…10 ms in zero crossing, 0.1…10 ms Number of outputs 2 x make contacts 2 x make contacts, mutually locked 2 x make contacts (without power contacts), mutually locked 2 6 3 7 4 8 Nominal voltage 12…230 V AC 12…230 V AC Current consum. pow. cont. – – Current consumption E-bus typ. 120 mA typ. 120 mA Distributed clocks – – Frequency range 47…63 Hz 47…63 Hz Surge voltage protection > 275 V > 275 V Peak current 40 A (16 ms), 1.5 A (30 s) 40 A (16 ms), 1.5 A (30 s) Leakage current typ. 0.8 mA, max. 1.5 mA (OFF state) typ. 0.8 mA, max. 1.5 mA (OFF state) Switch-off time T/2 T/2 Max. residual voltage 1.5 V (60 mA…1 A), 150 Ω (< 60 mA) 1.5 V (60 mA…1 A), 150 Ω (< 60 mA) Special features suitable for conventional blind motors suitable for conventional blind motors Operating temperature 0…+55 °C 0…+55 °C Approvals CE CE Weight approx. 55 g approx. 55 g Further information www.beckhoff.com/ EL2712 www.beckhoff.com/ EL2722 www.beckhoff.com/ EL2732 1 5 2 6 3 7 4 8 For availability status see Beckhoff website at: www.beckhoff.com We reserve the right to make technical changes.
1 5 EL290x Digital output Digital output | 24 V DC, TwinSAFE 4-channel digital output terminal, TwinSAFE, 24 V DC 2-channel digital output terminal, TwinSAFE, 24 V DC Potential power supply terminal, TwinSAFE, 24 V DC, 10 A Technical data EL2904 EL2902 EL2901 Connection technology 1-/2-wire 1-wire 1-/2-wire and/or via power contacts Safety standard DIN EN ISO 13849-1:2008 (Cat 4, PL e) and IEC 61508:2010 (SIL 3) EtherCAT Terminal 137 Max. output current 0.5 A (per channel), min. 20 mA 2.3 A (per channel) 10 A (with active current measurement) Number of outputs 4 2 1 1 5 1 5 2 6 2 6 2 6 3 7 3 7 3 7 4 8 4 8 4 8 Protocol TwinSAFE/Safety over EtherCAT TwinSAFE/Safety over EtherCAT TwinSAFE/Safety over EtherCAT Nominal voltage 24 V DC (-15 %/+20 %) 24 V DC (-15 %/+20 %) 24 V DC (-15 %/+20 %) Current consumption load-dependent load-dependent load-dependent power contacts Current consumption typ. 221 mA typ. 221 mA typ. 221 mA E-bus Fault response time ≤ watchdog time (parameterisable) ≤ watchdog time (parameterisable) ≤ watchdog time (parameterisable) Special features 4 safe outputs 2 safe outputs safe power supply Operating/storage -25…+55 °C/-40…+70 °C 0…+55 °C/-40…+70 °C 0…+55 °C/-40…+70 °C temperature Approvals CE, UL, Ex, TÜV SÜD in preparation (CE, UL, Ex, TÜV SÜD) in preparation (CE, UL, Ex, TÜV SÜD) Weight approx. 90 g approx. 90 g approx. 90 g Further information www.beckhoff.com/EL2904 www.beckhoff.com/EL2902 www.beckhoff.com/EL2901 For TwinSAFE products and further information on the TwinSAFE technology see page 1 530 For availability status see Beckhoff website at: www.beckhoff.com We reserve the right to make technical changes.