If you have a similar, working Danfoss VLT drive nearby, swap the control card to see if the error follows the card or stays with the drive.
: Using an incorrect or incompatible spare part during a previous repair.
Apply power while holding these keys for at least 5 seconds. Note: This will erase all your custom parameters. danfoss error 1027
Press and hold the , [Main Menu] , and [OK] keys simultaneously.
This error is almost always hardware-related rather than a programming mistake. The most common reasons include: If you have a similar, working Danfoss VLT
Wait until the LCP (Local Control Panel) display turns off completely. Reconnect the power and see if the error clears. Disconnect mains power and wait for the display to go dark.
: Defective EEPROM data on either the power card or the control card. Note: This will erase all your custom parameters
Danfoss is a critical internal communication fault that typically occurs within the VLT series frequency converters (such as the FC 102, FC 202, and FC 302). It indicates that the control card is unable to communicate with the power card or that an internal CAN telegram cannot be sent . What Causes Error 1027?