The main control card firmware is incompatible with the firmware version on an installed option card (e.g., PROFINET, EtherNet/IP, VLT® Sensorless Safety).
To prevent Error 2563 from disrupting your operations in the future, implement the following best practices:
Once you have identified the culprit during troubleshooting, implement the corresponding fix:
This post provides a comprehensive technical deep dive into Error 2563: what it means, why it happens, and a step-by-step guide to resolving it permanently. Danfoss Vlt Error Code 2563
Keep internal control and communication wires separate from high-voltage power lines. 4. How to Resolve the Error
Danfoss VLT Error Code 2563: Comprehensive Troubleshooting & Fix Guide
Turn the main power off and wait for the display to go completely dark (at least 4–15 minutes depending on the drive size to allow capacitors to discharge) before restarting. Check Connections: The main control card firmware is incompatible with
and check option card seating during scheduled plant shutdowns.
If you have multiple Danfoss VLTs in your facility, invest in the Danfoss VLT® Motion Control Tool MCT 10 software. It allows you to log temperature trends (parameter 16-09 – Heat Sink Temp and 16-92 – Power Card Temp) over time, helping you predict failures before an alarm occurs.
Did this error happen , or immediately after a software or hardware change ? Do you have any option cards installed in slots A or B? Share public link If you have multiple Danfoss VLTs in your
Danfoss VLT series drives, there is no single "Error Code 2563." Instead, this likely refers to Alarm 38 (Internal Fault) with a specific sub-code of Overview of Alarm 38
Use a multimeter set to AC voltage: