A fault exists on one of the connected drives (check individual drive displays).
Resolve the underlying drive fault (e.g., encoder failure, overvoltage, motor overheating).
Solution: Check the fiber optic cable connections (if using SERCOS) or the Profibus/Ethernet cabling for damage or loose connectors.
using the Bosch Rexroth USA Manuals Portal or through a direct serial/Ethernet connection via IndraWorks/SynTop. -20 to -2X Configuration module or hardware mismatch
The controller fails to initialize.
If the PPC cannot read the program, the CF card might be corrupt. Shut down power. Remove and reinsert the CF card. If that fails, you may need a backup to re-image the card. Step 5: Check Drive Status
This guide provides a comprehensive overview of the PPC-R22.1 fault codes, diagnostic procedures, and solutions, helping maintenance technicians and engineers quickly identify and resolve issues based on LSA Control documentation and common industry troubleshooting techniques, such as those discussed on Wake Industrial . 1. Understanding PPC-R22.1 Diagnostic Display
Rexroth PPC controllers utilize specific alphanumeric combinations to communicate errors, warnings, and states. Unlike drive-level diagnostics (which feature an F followed by four numbers), the PPC system controller features a dedicated classification system displayed on its H1 status terminal. Alphanumeric Code Priorities
Verify the debugging process in SynTop. Clear active debug flags. F0023: Spare Parts Replacement Mismatch rexroth ppcr221 fault codes full
| LED State | Meaning | Likely Fault Code Category | | :--- | :--- | :--- | | | Normal operation | No fault | | Green OFF, Red ON | Hardware fault (internal) | CPU error, watchdog | | Green OFF, Red flashing (1Hz) | STOP state (no program) | Configuration missing | | Green ON, Red flashing (2Hz) | Bus communication error (Sercos, PROFIBUS, PROFINET) | Fieldbus fault | | Both flashing alternately | Firmware update / Bootloader mode | Recoverable via service tool |
Cause : Internal software execution looped or hung due to firmware processing exceptions.
Solution: Connect to the controller and reload the machine's commissioning parameter file from a verified backup.
Solution: Review and validate the axis allocation tables inside your programming workspace. A fault exists on one of the connected
By staying informed and proactive, you can ensure optimal performance and reliability from your Rexroth PPCR221 controller.
: Re-establish the control cabinet grounding to prevent EMF interference. Use the Bosch Rexroth Manuals Portal or your local SynTop/VisualMotion software environment to flash the latest parameter backup archive onto the PPC's CF (CompactFlash) card. 2. Debugging and Replacement Mismatches (Codes F21 to F23)
Cause : The configuration software is attempting to map more axes than the PPC firmware license or physical memory architecture supports.