The Rexroth PPC-R22.1 Go to product viewer dialog for this item.
| Fault Code | Description | Common Cause | Immediate Action | | :--- | :--- | :--- | :--- | | F301 | DC Bus Undervoltage | Mains supply sag; blown input fuse; weak transformer. | Measure input L1-L2-L3. Should be within ±10% of rating. | | F302 | DC Bus Overvoltage | Excessive regenerative braking; decel time too short. | Increase decel time. Add a larger braking module. | | F305 | 24V Control Supply Fault | Internal power supply failure; overload on +24V terminals. | Remove all external 24V loads (sensors, relays). Test one by one. | | F310 | Phase Loss – Input Mains | Missing one phase on three-phase input. | Check upstream contactor, fuses, or circuit breaker. | rexroth ppcr221 fault codes full
F08: You've tried to connect more drives than the optical ring can handle. The Rexroth PPC-R22
. This is a "catch-all" on the controller indicating that one of the connected drives has an error. You must check the specific drive for its internal F-code (e.g., F8060). Wake Industrial 3. Common Related Drive Errors If the PPC shows IndraWorks DS → Diagnostics → Fault Memory →
Rexroth PPCR221 Fault Codes List