| Fault Code | Description | Probable Cause | Corrective Action |
| :--- | :--- | :--- | :--- |
| F2001 | RAM Check Error | Defective RAM module or bit failure. | 1. Hardware replacement required.
2. Attempt firmware reload to rule out software corruption. |
| F2100 | Parameter Data Invalid | Configuration data corrupted or out of range. | 1. Load default parameters.
2. Restore from a known good backup. |
| F2205 | CompactFlash (CF) Card Error | CF card missing, corrupted, or write-protected. | 1. Reseat the CF card.
2. Format the card and reload the system image.
3. Replace CF card. |
Step 1: Identify the fault type
Step 2: Connect with IndraWorks Engineering rexroth ppcr221 fault codes full
Step 3: Interpret Common System Error Codes (Hex) | Fault Code | Description | Probable Cause
| 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. | Step 2: Connect with IndraWorks Engineering
The Rexroth PPCR221 is a component within the IndraDrive (often Drives or HCS) family. It typically functions as a Control Section (firmware-dependent) or a specific power unit interface. When a fault occurs, the drive halts power output and displays an alphanumeric error code (e.g., F8070, E8220) on its 7-segment display or via the operating software (IndraWorks DS).
All PPCR221 faults are categorized into Error Classes (1 to 8) to help isolate the root cause.