BECKHOFF EL2889产品原理
BECKHOFF EL2889技术分析
EL2889 | HD EtherCAT Terminal, 16-channel digital output 24 V DC, 0.5 A, 0 V (ground) switching
The EL2889 digital output terminal connects the binary control signals from the automation device on to the actuators at the process level with electrical isolation. The EL2889 is protected against polarity reversal and processes load currents with outputs protected against overload and short-circuit. The EtherCAT Terminal contains 16 channels, whose signal states are displayed by LEDs. The terminal is particularly suitable for space-saving use in control cabinets. The connection technology is particularly suitable for single-ended inputs. All components have to use the same reference point as the EL2889. The power contacts are looped through.
The outputs are fed via the 0 V power contact in the EL2889. The conductors can be connected without tools in the case of solid wires using a direct plug-in technique.
The HD EtherCAT Terminals (High Density) with increased packing density feature 16 connection points in the housing of a 12 mm terminal block.
| Technical data | EL2889 |
|---|
| Connection technology | 1-wire |
| Number of outputs | 16 |
| Rated load voltage | 24 V DC (-15 %/+20 %) |
| Load type | ohmic, inductive, lamp load |
| Distributed clocks | – |
| Max. output current | 0.5 A (short-circuit-proof) per channel |
| Short circuit current | typ. < 7 A |
| Reverse voltage protection | yes |
| Breaking energy | < 100 mJ/channel |
| Switching times | TON: 50 µs, TOFF: 200 µs |
| Current consumption E-bus | typ. 140 mA |
| Electrical isolation | 500 V (E-bus/field potential) |
| Current consumption power contacts | typ. 30 mA + load |
| Bit width in the process image | 16 outputs |
| Configuration | no address or configuration setting |
| Conductor types | solid wire, stranded wire and ferrule |
| Conductor connection | solid wire conductors: direct plug-in technique; stranded wire conductors and ferrules: spring actuation by screwdriver |
| Rated cross-section | solid wire: 0.08…1.5 mm²; stranded wire: 0.25…1.5 mm²; ferrule: 0.14…0.75 mm² |
| Weight | approx. 70 g |
| Operating/storage temperature | -25…+60 °C/-40…+85 °C |
| Relative humidity | 95 %, no condensation |
| Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27 |
| EMC immunity/emission | conforms to EN 61000-6-2/EN 61000-6-4 |
| Protect. class/installation pos. | IP 20/variable |
