Minimum Software Version Fault (Control Card/BMC2)
Danfoss · VLT 2800 Variable Speed Drive
What does 44 mean?
This fault indicates that the software version on either the control card or the BMC2 is below the minimum required for proper operation or compatibility. This can lead to system malfunctions, feature limitations, or communication failures within the drive. An update or replacement might be necessary.
Common Causes
- Control card or BMC2 module firmware version is older than the minimum required by the drive's main application software.
- A replacement control card or BMC2 module was installed with an outdated firmware version.
- A failed or incomplete firmware update left one of the components with an incompatible software version.
- Mismatch between hardware revisions of the control card and BMC2 requiring specific firmware versions for compatibility.
Repair Steps & Checklist
Click steps to track your progress.
- 1
1. Check the currently installed software versions for both the control card and the BMC2 module via the drive's diagnostic menu.
- 2
2. Download the latest compatible firmware for the control card from the manufacturer's website and update it using the specified tool.
- 3
3. Download the latest compatible firmware for the BMC2 module from the manufacturer's website and update it using the specified tool.
- 4
4. Confirm that the hardware revision numbers for both control card and BMC2 are compatible according to the drive's documentation.