If the error remains after checking connections, it is highly likely that the or Power Card has failed.
Follow these sequential steps to diagnose and attempt to clear the error before replacing hardware. 1. Perform a Complete Hard Power Cycle danfoss error 1027
High levels of electromagnetic interference from unshielded motor cables or inadequate grounding can corrupt internal high-speed data transmission. If the error remains after checking connections, it
Send a control word bit 07 (Reset trip) via explicit message or from the PLC. Example for Profibus: Control word = 0x0080. Perform a Complete Hard Power Cycle High levels
Before calling for service, you can try these basic resets to see if the error was a one-time glitch:
This is the primary cause of Alarm 1027. The "CAN telegram cannot be sent" descriptor reveals the issue: the drive's internal CAN bus, which allows its various circuit boards (like the control card and power card) to communicate, has failed. This failure can manifest as a corrupted data transmission, a broken communication path, or a complete inability to send messages.