CCU activation

What does 93 mean?

A Controlled Common Use (CCU) activation has occurred, meaning another device connected to the CAN bus initiated the stopping of the R&M Materials Handling Frequency Converter system. This indicates an external device commanding a stop via the shared network.

• Another device connected to the CAN bus has caused the system to stop

Click steps to track your progress.

1. 1

   Verify the operational status and control logic of other devices connected to the CAN bus to identify which device is initiating the CCU stop command.

2. 2

   Inspect the CAN bus wiring and connections (e.g., termination resistors, shielding) for damage, loose connections, or incorrect configuration.

3. 3

   Verify the frequency converter's communication parameters (e.g., CAN bus address, baud rate, control source selection) are correctly configured according to the system's design documentation.

4. 4

   Check the status of any external safety circuits or control logic (e.g., emergency stops, interlocks) that are configured to issue a stop command via the CAN bus.