EL3001 Beckhoff EtherCAT Terminal | 1-Channel Analog Voltage Input ±10 V
The Beckhoff EL3001 is a single-channel analog input terminal for ±10 V signals. It digitizes voltage at 12-bit resolution and sends data electrically isolated to the controller. Because inputs are single-ended, they share one internal ground. The terminal offers fine granularity and 500 V isolation. LEDs show signal state directly. This module fits EtherCAT systems that need stable voltage capture.
Technical Data at a Glance
- Inputs: 1 single-ended
- Signal voltage: -10 to +10 V
- Resolution: 12 bit with 16-bit presentation
- Measuring error: under ±0.3 % full scale
- Internal resistance: above 130 kΩ
- Input filter limit frequency: 1 kHz
- Conversion time: 0.625 ms default, configurable
- Dielectric strength: max 30 V
- Electrical isolation: 500 V E-bus to field
- E-bus current: typical 130 mA
- Process image: 4 byte inputs
- Power supply: via E-bus
- Configuration: no address or setup needed
- Weight: approx 70 g
Environmental and Mechanical Ratings
- Operating temperature: -25 to +60 °C
- Storage temperature: -40 to +85 °C
- Relative humidity: 95 %, no condensation
- Vibration and shock: EN 60068-2-6 / EN 60068-2-27
- EMC immunity and emission: EN 61000-6-2 / EN 61000-6-4
- Protection rating: IP20
- Installation position: variable
- Housing material: polycarbonate
- Dimensions: 12 mm x 100 mm x 68 mm
- Mounting: 35 mm DIN rail per EN 60715
- Side mounting: double slot and key connection
- Marking: BZxxx series labels
Wiring and Connection Data
- Wiring type: spring actuation by screwdriver
- Solid conductor: 0.08 to 2.5 mm²
- Stranded conductor: 0.08 to 2.5 mm²
- Ferrule conductor: 0.14 to 1.5 mm²
- AWG solid: 28 to 14
- AWG stranded: 28 to 14
- AWG ferrule: 26 to 16
- Stripping length: 8 to 9 mm
- Power contact current: max 10 A
- ES3001 variant: pluggable wiring level
Special Features Worth Noting
- Standard and compact process image, switchable
- Selectable measuring data representation
- Activatable FIR and IIR filters
- Limit value monitoring built in
- Overload display in process data
- Electrically isolated signal path
Approvals and Ex Marking
- CE
- UL
- ATEX
- Ex marking: II 3 G Ex nA IIC T4 Gc
Suitable Equipment and Systems
- EtherCAT I/O networks with voltage sensors
- Beckhoff TwinCAT control platforms
- Compact terminal systems with EL or ES series
- Machines needing 12-bit voltage capture
- Panels with 35 mm DIN rail mounting
- ATEX Zone 2 and Zone 22 environments
- Legacy automation racks needing spare channels
Oiltech Controls’s Insight
- The EL3001 suits steady voltage monitoring, not fast transients.
- Its 1 kHz filter limit frequency favors low-noise industrial loops.
- Single-ended inputs need a clean common ground reference.
- 12-bit resolution is enough for most position and pressure feedback.
- For higher precision, move to 16-bit EL30xx variants instead.
Oiltech Controls Review
- Engineers value the no-configuration startup.
- The 500 V isolation protects the E-bus side well.
- FIR and IIR filters help tame noisy field signals.
- Overload display speeds up fault tracing on site.
- Pluggable ES3001 wiring saves time during swaps.
Why Buy From Oiltech Controls?
- More than 15 years in industrial automation spare parts
- Worldwide shipping to most industrial regions
- Tested surplus and refurbished options available
- 12-month warranty on every order
- Technical check before dispatch on each unit
- Support for discontinued control systems
Delivery, Packing and Warranty
- Orders ship within 24 to 28 hours
- Carriers include FedEx, UPS, and DHL
- Each unit is packed for safe global transit
- Every product carries a 12-month warranty
- Package includes 1x EL3001 terminal and 1x documentation
FAQ
Q: Can the EL3001 read a 0 to 10 V sensor directly?
A: Yes. The input range covers -10 to +10 V. A 0 to 10 V sensor uses only half the scale. So you lose some resolution. For best accuracy, match the sensor range to the terminal.
Q: Why does my EL3001 reading drift over time?
A: Single-ended inputs share one internal ground. Ground loops often cause drift. Use shielded cable and tie the shield at one end only. Also check that the field ground is stable.
Q: Is the EL3001 a good choice for high-speed waveform capture?
A: No. The conversion time is 0.625 ms by default. The input filter limit is 1 kHz. For fast signals, choose a higher-speed terminal with shorter conversion time.
Q: How do I pick between EL3001 and ES3001?
A: Both share the same electrical data. The ES3001 adds a pluggable wiring level. If you swap modules often, pick the ES3001. If you use fixed wiring, the EL3001 is enough.
Q: What should I check before buying a used EL3001?
A: Confirm the housing is not cracked. Check the spring terminals for damage. Ask for a test report with voltage readings. Also verify the ATEX marking if you work in Ex areas. A tested surplus unit from Oiltech Controls includes a 12-month warranty.
Questions? Reach us at info@oiltechcontrols.com or +86 158 8020 0923.
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