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lhensleyAug 30, 2025
What does 'Illegal FC configuration' mean on Danfoss VLT CDS 803 DC Drives?
- JJohn GoodAug 30, 2025
The message 'Illegal FC configuration' on Danfoss DC Drives indicates that the control card and power card are not matched.
What does 'Illegal FC configuration' mean on Danfoss VLT CDS 803 DC Drives?
The message 'Illegal FC configuration' on Danfoss DC Drives indicates that the control card and power card are not matched.
Why Danfoss VLT CDS 803 show '24 V supply low'?
Danfoss DC Drives show '24 V supply low' because the 24 V DC supply may be overloaded.
What causes a 'Mains ph. loss' error in Danfoss VLT CDS 803 DC Drives and how to fix it?
A 'Mains ph. loss' error in Danfoss DC Drives indicates a missing phase on the supply side or too high voltage imbalance. Check the supply voltage and refer to parameter 14-12 Function at Mains Imbalance.
Why Danfoss DC Drives show Short Circuit error?
A short circuit is likely occurring in the compressor or on the compressor terminals.
What does Live zero error mean in Danfoss DC Drives?
The signal on terminal 53 or 54 is less than 50% of the value set in parameter 6-10 Terminal 53 Low Voltage, parameter 6-12 Terminal 53 Low Current, parameter 6-20 Terminal 54 Low Voltage, or parameter 6-22 Terminal 54 Low Current. Also, see parameter group 6-0* Analog I/O Mode.
What does 'Motor ETR over' mean on Danfoss VLT CDS 803 DC Drives?
If your Danfoss DC Drives show 'Motor ETR over,' it means the motor is too hot due to being more than 100% loaded for a long time. Refer to parameter 1-90 Motor Thermal Protection.
What does 'Motor th over' mean on Danfoss VLT CDS 803 DC Drives?
If your Danfoss DC Drives show 'Motor th over', it indicates the thermistor or thermistor connection is disconnected. Refer to parameter 1-90 Motor Thermal Protection.
What does 'External Interlock' mean on Danfoss VLT CDS 803 DC Drives and how to resume normal operation?
The 'External Interlock' message on Danfoss DC Drives means that the external interlock has been activated. To resume normal operation, apply 24 V DC to the terminal programmed for external interlock and reset the drive (via serial communication, digital I/O, or by pressing [Reset] on the LCP).
What does 'Current limit' mean on Danfoss VLT CDS 803?
If your Danfoss DC Drives display the message 'Current limit', it means the current is higher than the value set in parameter 4-18 Current Limit.
How to fix 'Live zero error' on Danfoss VLT CDS 803 DC Drives?
A 'Live zero error' occurs when the signal on terminal 53 or 54 is less than 50% of the value set in parameter 6-10 Terminal 53 Low Voltage, parameter 6-12 Terminal 53 Low Current, parameter 6-20 Terminal 54 Low Voltage, or parameter 6-22 Terminal 54 Low Current. See also parameter group 6-0* Analog I/O Mode.
Details guide purpose, supplementary documentation, and software support.
Lists manual/software versions and product approvals/certifications.
Explains safety symbols and requirements for qualified personnel.
Details essential safety measures for hazardous voltage and unintended starts.
Highlights hazards like discharge time, leakage, equipment contact, and internal failures.
Introduces the CDS 803 family, listing common I/Os and communication features.
Details specialized functions for compressor systems like Secure Start-up and speed detection.
Details custom application functions like AMA, PID control, and Smart Logic Control.
Details built-in protection functions for mains input, output, temperature, and internal faults.
Explains the Ecodesign Directive for energy-related products in Europe.
Presents detailed electrical specs for 3x200-240V and 3x380-480V AC systems.
Details mains supply parameters and compressor output voltage.
Lists specifications for all control inputs, outputs, relays, and communication.
Specifies ambient conditions, environmental requirements, and conforming standards.
Details cable lengths, acoustic noise sources, and mechanical dimensions.
Presents dU/dt data including cable length, voltage, and rise time.
Provides guidelines for safe handling, storage, and capacitor reforming.
Details side-by-side clearance, operating environment, gases, dust, and humidity.
Explains derating due to ambient temperature, switching frequency, and high altitudes.
Presents derating curves for various power ratings based on temperature and frequency.
Describes the optional IP21/NEMA Type 1 enclosure kit for enhanced protection.
Covers general installation, cable specs, and fuse/breaker recommendations.
Details wiring schematics, terminal layouts, and connection procedures.
Guides IT grid installations and details relay terminal configurations.
Guides on configuring RS485 serial communication for drives.
Discusses EMC, interference sources, requirements, and compliant installation.
Provides instructions for EMC-compliant installation and cable selection.
Explains RFI filter usage and discusses harmonics emission.
Details galvanic isolation, PELV requirements, and ground leakage current.
Provides guidelines for using RCDs for leakage current protection.
Guides to the online configurator and explains the type code structure for ordering.
Lists available accessories and spare parts with their respective order numbers.
Provides a comprehensive glossary of abbreviations used in the manual.
Explains conventions used for lists, bold, and italic text in the document.
General