System Terminals
EL9540, EL9550
Power LED
Power contact
+24 V
+24 V
Power contact 0 V
Power contact PE
Power
contact
contact
Power
contact
contact
Power
contact
contact
+24 V
0 V
Top view
Contact assembly
Power LED
field
field
Power LED
system
system
Power
contact
contact
Power
contact
contact
Output +24 V
+24 V
0 V
Input +24 V
Output 0 V
+24 V
0 V
0 V
Top view
Contact assembly
EL9540, EL9550 | System terminals, surge filter system and field supply
The EL9540 system terminal contains an overvoltage filter for the 24 V field supply, the EL9550 for the 24 V field and system supply. The filter protects the EtherCAT Terminals from line-bound surge voltages that can occur due to high-energy disturbances such as switching overvoltages at inductive consumers or lightning strikes at the supply lines. The EtherCAT Terminals EL9540 or EL9550 protect the terminal station from damage in particularly harsh environments. The ship classification organisations require the use in shipbuilding applications and in the onshore/offshore sector.
| Technical data | EL9540 | ES9540 | EL9550 | ES9550 |
|---|---|---|
| Technology | surge filter field supply | surge filter system and field supply |
| Nominal voltage | 24 V (-15 %/+20 %) | |
| Surge filter field supply | yes | |
| Surge filter system supply | – | yes |
| PE connection | yes | – |
| Diagnostics | – | |
| Weight | approx. 50 g | |
| Operating/storage temperature | 0…+55 °C/-25…+85 °C | |
| Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27/29 | |
| 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 | |
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