Beckhoff EL9410 E-bus Power Supply Terminal
A diagnostic EtherCAT terminal that refreshes the E-bus supply and establishes the next power-contact potential group.
Product Identification
EL9410 is a Beckhoff power-supply terminal used when an EtherCAT station requires additional E-bus current. It also feeds the power contacts on the right-hand side and reports supply diagnostics through LEDs and the process image.
Its placement is determined by the calculated current demand of the downstream terminals. The terminal is not a field I/O channel and should be planned as part of the station power architecture.
Engineering Data
| Manufacturer | Beckhoff |
|---|---|
| Model | EL9410 |
| Technology | E-bus power supply terminal |
| Input Voltage | 24 V DC (-15% / +20%) |
| E-bus Output | 5 V, 2 A |
| Input Current | Typically 70 mA plus E-bus current divided by four |
| Power Contacts | Maximum 24 V DC / 10 A |
| Electrical Isolation | 500 V between E-bus and field potential |
| Diagnostics | LED and process image |
| Short-Circuit Protection | Yes |
| Protection Rating | IP20 |
| Mounting | 35 mm DIN rail |
Functions
- Refreshes the E-bus supply for downstream EtherCAT terminals.
- Creates a new 24 V power-contact potential group to the right of the terminal.
- Reports E-bus and power-contact supply status for commissioning and maintenance.
- Uses the compact Beckhoff terminal housing and standard spring-actuated wiring.
Applications
- Long EtherCAT terminal stations
- High downstream E-bus current demand
- Additional field-potential groups with diagnostics
Lifecycle
- Retain the E-bus current calculation with the station drawing.
- Monitor diagnostic bits and LEDs during cabinet inspection.
- Recalculate downstream demand after terminal-station expansion.
FAQ
When is EL9410 needed in an EtherCAT station?
Use it when the calculated downstream E-bus demand exceeds the available supply or when a separately fed power-contact group is required.
Can EL9410 be placed anywhere in the terminal row?
Its position must align with the E-bus current calculation and the intended start of the new power-contact potential group.
How does EL9410 differ from a basic feed terminal?
It refreshes E-bus power and exposes diagnostic information, so both the logic supply and field-potential plan must be considered.
What should be checked before replacing EL9410?
Confirm the incoming 24 V sources, power-contact polarity, downstream current demand, terminal order and diagnostic mapping.
Can EL9410 correct an EtherCAT communication fault by itself?
Only faults caused by inadequate E-bus supply may be resolved; topology, coupler, wiring and individual terminal diagnostics still require separate evaluation.
What information helps quote EL9410 for an expansion?
Provide the complete terminal list, E-bus current calculation, field-load current, supply arrangement and available DIN-rail space.


