Use specialized diagnostic tools like SynTop software to identify which specific drive is triggering the F98 error. Status Display Codes (Non-Faults)
CPU Malfunction. Indicates a fault on the controller motherboard.
If you need the official Bosch Rexroth manual supplement for the PPCR221 (Document no. DOK-SUPPL*-PPCR221**-ITRS-EN), contact Bosch Rexroth Customer Service at 1-800-739-7684 (North America) or visit their download portal at www.boschrexroth.com/service.
Solution: Review and validate the axis allocation tables inside your programming workspace.
While a fault code on your Rexroth PPCR221 system can be alarming, it is also a powerful tool for diagnosis. By understanding how the codes are structured and following a logical troubleshooting path—starting with simple physical checks and progressing to software diagnostics—you can quickly resolve most issues. For more complex or persistent faults, always consult the official Rexroth documentation or contact a qualified repair service for components like the controller or drive power units. If you have any experience with specific fault codes not listed here, feel free to share your insights in the comments below! rexroth ppcr221 fault codes full
Bookmark this article. The "full" list of Rexroth PPCR221 fault codes is rarely found in a single manual—they are split across drive, power, and communication supplements.
Rexroth PPCR221 Fault Codes Full: Comprehensive Troubleshooting Guide
Check the drive status diagnostics in SynTop to identify the specific axis (driver) that is triggering the alarm.
These codes typically appear when new hardware is introduced or during the initial setup. Issues during the debugging phase. F23: Common when swapping PPC spare parts. Use specialized diagnostic tools like SynTop software to
| Hex Code | Description (System) | Action | | :--- | :--- | :--- | | 16#0001 | Watchdog overflow | Increase task cycle time or optimize code. | | 16#2001 | No user program | Download project. | | 16#3002 | I/O bus failure (K-Bus/E-Bus) | Check terminal bus coupler, power supply. | | 16#4003 | Retain data corrupted | Clear retain memory and reload defaults. | | 16#5005 | Sercos ring error | Check fiber optic cables, ring configuration. | | 16#6xxx (e.g., 0x6A01) | PROFIBUS DP: Station not found | Check address switch, cable termination. |
Rexroth fault codes generally follow a hierarchical prefix system:
The fault codes you see are a combination of and user-programmed errors .
: Fluctuations in control voltage often trick internal registers into throwing false memory or parameter codes. Ensure clean, ripple-free power supply input. If you need the official Bosch Rexroth manual
Inspect the voltage regulation system. Ensure the power supply matches Rexroth specifications. 2. Command Signal Errors E2 / F2: Input Signal Out of Range (Cable Break)
Solution: Flash the correct firmware build variant specified by the OEM or the Bosch Rexroth Product Portal. Commissioning and Component Integrity Faults (F21 to F23)
High ambient cabinet temperature, sustained high-current operations near maximum capacity, or inadequate ventilation/cooling.
Too many drives connected for the controller's maximum capacity. F15 to F18 Soft Fault (Parameter Loss)