EL2521 | 1-channel pulse train output terminal RS422/24 V DC
The EL2521 output terminal alters the frequency of a binary signal and (electrically isolated from the E-bus) outputs it. The frequency is preset by a 16 bit value from the automation unit. The output stage is RS422-compatible. In the version EL2521-0024 it can be driven with 24 V DC signals. The terminal indicates its signal state by means of light emitting diodes. The LEDs are driven in time with the outputs and each displays an active output.
BECKHOFF EL2521實(shí)物圖如下：
| Technical data |
EL2521 | ES2521 |
| Connection technology |
pulse train (frequency output) |
| Number of outputs |
1 channel (2 differential outputs A, B) |
| Number of inputs |
2 (+T, +Z) |
| Load type |
ohmic, min. 220 Ω |
| Distributed clocks |
yes |
| Input specification |
24 V DC |
| Output specification |
RS422, differential |
| Signal voltage |
RS422 level |
| Max. output current |
RS422 specification, 50 mA |
| Short circuit current |
short-circuit-proof |
| Base frequency |
0…500 kHz, 50 kHz default |
| Resolution |
max. 15 bit (16 bit + sign) |
| Step size |
10 mHz |
| Current consumption E-bus |
typ. 280 mA (load-dependent) |
| Electrical isolation |
500 V (E-bus/field potential) |
| Current consumption power contacts |
– |
| Bit width in the process image |
14 byte output, 8 byte input |
| Configuration |
configuration via controller |
| Special features |
different modes, ramp function, travel distance control |
| Weight |
approx. 50 g |
| Operating/storage temperature |
0…+55 °C/-25…+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 |
| Pluggable wiring |
for all ESxxxx terminals |
| Approvals |
CE, UL, Ex |
