Manufacturer: BECKHOFF
Product No.: EL1262
Country of origin:Germany
Product Type: EtherCAT Terminal Input Modules
Payment: T/T, Western Union
Weight: 2000g
Dimensions: 12 mm x 100 mm x 68 mm
Shipping port: Xiamen
Warranty: 12 months
Designed for high-speed signal acquisition within the EtherCAT system architecture, the Beckhoff EL1262 digital input terminal enables precise oversampling of binary control signals. This module is engineered to capture fast transitions with microsecond-level accuracy, making it ideal for applications where standard cycle times are insufficient to resolve rapid industrial processes.
| Parameter | Specification Value |
|---|---|
| Manufacturer | Beckhoff |
| Model | EL1262 |
| Number of Inputs | 2 |
| Nominal Voltage | 24 V DC (-15% / +20%) |
| Signal Voltage "0" | -3 to +5 V DC (EN 61131-2, Type 3) |
| Signal Voltage "1" | 11 to 30 V DC (EN 61131-2, Type 3) |
| Input Current | Typical 3.0 mA |
| Input Filter | Typical < 1 microsecond |
| Sampling Rate | Maximum 1 Msample/s |
| Oversampling Factor | n = 1 to 1000 (integer multiple of cycle time) |
| Timestamp Precision | 10 ns (+ input delay) |
| Distributed Clocks | Yes (Precision << 1 microsecond) |
| Current Consumption E-bus | Typical 70 mA |
| Current Consumption Power Contacts | Typical 20 mA + load |
| Electrical Isolation | 500 V (E-bus / field potential) |
| Connection Technology | 4-wire |
| Solid/Stranded Wire Section | 0.08 to 2.5 mm² (AWG 28 to 14) |
| Ferrule Wire Section | 0.14 to 1.5 mm² (AWG 26 to 16) |
| Stripping Length | 8 to 9 mm |
| Dimensions (W x H x D) | 12 mm x 100 mm x 68 mm |
| Weight | 55 g |
| Operating Temperature | 0 to +55 degC |
| Storage Temperature | -25 to +85 degC |
| Protection Rating | IP20 |
| Approvals | CE, UL, ATEX, IECEx, cFMus |
| Hazardous Area Ratings | ATEX: II 3 G Ex nA IIC T4 Gc IECEx: Ex nA IIC T4 Gc / Ex tc IIIC T135 degC Dc cFMus: Class I, Div 2, Groups A, B, C, D |
| Terminal Connection | Signal / Function |
|---|---|
| Terminal 1 | Input 1 (24 V DC) |
| Terminal 2 | Input 2 (24 V DC) |
| Terminal 3 | 0 V (Sensor Supply, Channel 1) |
| Terminal 4 | 0 V (Sensor Supply, Channel 2) |
| Terminal 5 | +24 V DC (Sensor Supply, Channel 1) |
| Terminal 6 | +24 V DC (Sensor Supply, Channel 2) |
| Terminal 7 | Shield / PE (Channel 1) |
| Terminal 8 | Shield / PE (Channel 2) |
The EL1262 is the standard tension clamp terminal. For applications requiring pluggable wiring harnesses, the ES1262 variant should be utilized. Note that oversampling configurations require TwinCAT 2.11 or higher, and the terminal must be integrated into an EtherCAT segment where the master supports Distributed Clocks (DC).
A common configuration error is disabling Distributed Clocks in the TwinCAT system manager. If DC is not activated, the oversampling buffer will fail to synchronize, resulting in cycle counter mismatches and invalid process data. Ensure that the E-bus power budget is verified during design; the EL1262 draws 70 mA from the E-bus, which can cause communication drops if the coupler's power supply limit is exceeded.
Because of the sub-microsecond response time, the inputs are highly sensitive to high-frequency noise. Always use shielded, twisted-pair cabling for the sensor connections and terminate the shields directly to Terminals 7 and 8. Ensure the DIN rail is properly grounded to the cabinet's functional earth to maintain signal integrity.
Mount the terminal onto a standard 35 mm DIN rail (conforming to EN 60715) by sliding it down until the locking mechanism clicks firmly into place.
Connect adjacent terminals using the integrated double slot and key connection system to establish E-bus continuity.
Strip the sensor wires to 8–9 mm. Use a flat-blade screwdriver to actuate the spring-clamp terminal, insert the conductor, and release the clamp to secure the wire.
Verify the E-bus and field power LED indicators upon system startup to confirm correct electrical and communication status.
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| Country of origin |
Germany
|
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