Danfoss ECA 82 LON Communication Module

OVERVIEW

INSTALLATION INSTRUCTION

FEATURES

1. LONWORKS Protocol Support
   Enables integration into LonWorks networks for building automation.
2. Plug-and-Play Module
   Easily connects to compatible Danfoss controllers like AK-CC 550/750.
3. Standard FTT-10 Transceiver
   Uses free topology twisted-pair wiring for flexible network installation.
4. Echelon Compatible
   Complies with Echelon specifications for interoperability.
5. SNVTs (Standard Network Variable Types)
   Uses standard data formats for consistent communication across devices.
6. Module Addressing Options
   Supports both automatic and manual node ID/address assignment.
7. Status LED Indicators
   Visual indicators for power, service pin, communication status, and errors.
8. Compact Design
   Small footprint allows easy integration into control panels.
9. Service Pin Button
   For commissioning and identifying the module on the network.
10. Firmware Updatable
    Can be upgraded using compatible tools to stay current.
11. Power Supply via Controller
    Eliminates the need for a separate power source.
12. Data Logging Support
    Supports exchange of logged data to/from BMS.
13. Node Isolation Protection
    Protects against electrical faults from affecting the network.
14. Field Configuration Capability
    Can be configured on-site using LNS-based tools.
15. Secure Communications
    Supports secure network communication using LON authentication.

SETUP GUIDES

1. Power Off Controller
   Ensure the host controller is powered off before inserting the module.
2. Insert Module Properly
   Plug the module into the dedicated expansion port on the controller.
3. Power On the Controller
   Apply power to the controller to boot both the controller and module.
4. Connect LON Cables
   Wire the module using twisted pair to the LON network (TP/FT-10).
5. Use Shielded Cable
   Use shielded and grounded cabling to reduce noise and signal loss.
6. Press Service Pin
   Press the service pin to announce the module on the LON network.
7. Assign Node ID
   Use LNS-based tools to assign a unique Node ID to the module.
8. Load XIF File
   Import the External Interface File (XIF) into the LON configuration tool.
9. Bind SNVTs
   Bind the Standard Network Variables to the corresponding BMS points.
10. Check LED Indicators
    Ensure LEDs indicate proper operation (green = good, red = fault).
11. Run Diagnostics
    Use LonMaker or a similar tool to check for communication errors.
12. Configure Network Settings
    Set up transmission rates, polling intervals, and other network settings.
13. Test Data Exchange
    Confirm that data is properly being exchanged between the BMS and the controller.
14. Label Connections
    Label wiring and port assignments for easy future maintenance.
15. Backup Configuration
    Save the LON network database and configuration for disaster recovery.

CARE & MAINTENANCE

1. Keep It Dust-Free
   Regularly clean the module area with a dry cloth to avoid dust buildup.
2. Avoid Moisture
   Ensure the control panel is kept dry to prevent short circuits.
3. Check LED Indicators Weekly
   Verify LEDs to detect early signs of communication issues.
4. Secure Wiring
   Periodically inspect and tighten any loose LON network connections.
5. Inspect for Corrosion
   Look for any signs of corrosion on terminals, especially in humid environments.
6. Update Firmware Annually
   Check Danfoss support for any available firmware updates.
7. Check Communication Logs
   Monitor network logs for packet loss or timeout issues.
8. Verify SNVT Bindings
   Confirm that bindings still reflect the current system configuration.
9. Environmental Conditions Check
   Keep temperature and humidity within operating specifications.
10. Avoid Static Discharge
    Handle the module and controller with anti-static precautions when servicing.
11. Use Surge Protection
    Install surge protectors to avoid damage from electrical spikes.
12. Don’t Force Module
    Avoid forcing the module into place; ensure clean insertion/removal.
13. Replace Damaged Cables
    Immediately replace any frayed or cut twisted pair cables.
14. Keep Documentation Updated
    Maintain updated wiring diagrams and configuration files on-site.
15. Schedule Annual System Review
    Conduct a full network health check yearly with certified tools.

FAQS

1. What devices are compatible with the ECA 82 LON module?
The ECA 82 LON is typically used with Danfoss AK-CC 550/750 series controllers and other compatible Danfoss equipment.

2. How is the ECA 82 powered?
The module draws power directly from the controller it’s connected to; no external power supply is needed.

3. How do I connect the ECA 82 to a LON network?
Use twisted-pair wiring (TP/FT-10) to connect the module to the LON bus. Follow Danfoss wiring standards for best results.

Documents / Resources

Danfoss ECA 82 LON Communication Module [pdf] Instructions 087R9749, VIKMO300, ECA 82 LON Communication Module, ECA 82, LON Communication Module, Communication Module, Module

References

• User Manual