Lenze · i550 Protec Drive
This warning indicates that no "explicit message" was received within the parameterized timeout period set by the scanner, or the connection to the scanner has been interrupted. This points to an issue with explicit network communication or its physical connection.
Click steps to track your progress.
Verify the physical network cable connection (e.g., Ethernet cable, CAN bus) between the inverter and the scanner. Check for proper seating and damage.
Confirm that the network address (e.g., IP address in P800.00 or node ID in P801.00) configured in the inverter matches the scanner's configuration.
Check the status of the PLC/scanner to ensure it is running and attempting to communicate with the inverter.
Increase the network timeout parameter (e.g., P802.00) on the inverter or scanner in small increments to allow for network delays.
Monitor network activity using a network sniffer tool to identify communication drops, excessive traffic, or message delays.