Comprehensive Troubleshooting Guide: Rexroth PPC-R22.1 Fault Codes Full List The Rexroth PPC-R22.1 controller Go to product viewer dialog for this item.
This article provides the most comprehensive, categorized list of Rexroth PPCR221 fault codes available, along with their meanings, probable causes, and step-by-step diagnostic procedures.
| Code Category | Code | Cause | Troubleshooting Steps | | :--- | :--- | :--- | :--- | | | -08 | Power-on self-test halted; CPU malfunction on controller motherboard | CPU replacement or complete control unit repair often required | | | F01-F06 | Optical cable (SERCOS) communication failure between PPC and drive | Inspect fiber-optic cables for damage/bends; check connectors/light transmission; use drive LED status to isolate faulted node | | | F07 | Address recognition error; duplicate/unset addresses in SERCOS ring | Verify each drive has unique, valid SERCOS address; adhere to controller's maximum drive limit | | | F15-F18 (Soft Faults) | Changes/loss of parameters on PPC's CF card; sudden power outage or grounding issue | Restore configuration from backup; verify cabinet grounding and lightning protection | | | F21-F23 | Debugging or spare part compatibility errors | Recheck debugging process; ensure spare parts are correct and compatible | | | F24, F27, F28 | Memory issues | Perform power cycle (full shutdown and restart); restore from backup if necessary | | | F29 | Password setting issues | Verify password; reset password via software or recovery procedure | | | F31-F40 | Bus communication errors (e.g., Profibus, Interbus) | Check bus cables, terminators, and connections; verify device addresses and bus configuration | | | F98 | Fault detected in any connected drive; PPC acts as relay for drive faults | Use SynTop/IndraWorks software to identify specific drive causing fault; diagnose that drive individually | | Drive & Power Stage Errors | F218 | Drive amplifier overtemperature; inadequate cooling or fan failure | Ensure fans spin; clean fins/vents; maintain ambient below 45°C; check blower/temp sensor | | | F219 | Motor overtemperature; mechanical overload or motor cooling failure | Reduce load/duty cycle; verify fan operation; clear vents; check thermistor wiring | | | F220 / F224 (Regen) | DC bus overvoltage; fast decel with high-inertia load regenerating energy | Extend decel ramps; verify brake resistor value and health; upgrade common-bus braking | | | F226 | DC bus undervoltage; mains sag or power removed with axes enabled | Perform controlled stop before cutting power; stabilize facility supply; secure DC-bus links | | | F860 / F861 | Overcurrent or ground fault; motor insulation failure or failed output transistor | Inspect and megger cables/motor; if they pass, drive output stage likely faulty | | | F2026 | Drive power unit undervoltage alarm | Check external 380V power and DC bus voltage; replace HCS power unit if needed; verify PLC timing | | | F2077 | Current detection error; hall sensor or CSB control unit failure | Replace HCS power unit if hall sensor fails; replace CSB control unit if current calculation circuit faulty | | | F2816 | DC bus failure | Check external 380V power; inspect DC bus and braking resistor wiring; replace power supply unit | | Feedback & Motor Errors | F229 | Quadrature/encoder error; electrical noise or cabling issue | Route feedback cables away from power wiring; ground shields at drive end; replace suspect cables | | | F8022 | Encoder signals incorrect; falls outside hardware thresholds | Inspect/replace encoder cable; clean encoder; check encoder alignment | | | C0270 | Motor encoder data reading error | Check motor encoder, feedback line, and CSB encoder feedback port | | | E2074, F2076, etc. | Various encoder fault alarms | Group includes codes like C0210, C0220, C0271; check encoder connections and integrity | | | Signal Amplitude Low | Weak sin/cos encoder signal | Match encoder type in parameters; confirm supply voltage; check intermediate junctions; replace encoder | | Parameter & Setup Errors | C0201 (C201) | Invalid or out-of-range parameter; during mode switch | Check S-0-0022/S-0-0423 for invalid parameters; reload backup; correct parameter values | | | C0202 (C202) | Invalid or out-of-range parameter (general) | Same as C201; review all parameters for validity against drive documentation | | | C0204 (C204) / C0210 (C210) | Feedback/motor mismatch; motor model or encoder type incorrect | Select correct motor from database; set correct encoder type; disable unused encoder channels | | | C0285 | Incorrect motor model parameter P-0-4014 | Confirm motor model in parameter; check connections and encoder | | | E8260 | Torque overload | Reduce acceleration; increase torque limits; optimize speed loop; add braking resistor | | Safety Technology Errors | F7010 | Safety-related limited increment exceeded | Clear with S-0-0099/C0500 reset command; check safety configuration | | | F7011 | Safety-related limit exceeded in positive direction | Execute S-0-0099/C0500 reset; correct safety parameters | | | F7012 | Safety-related limit exceeded in negative direction | Execute S-0-0099/C0500 reset; review safe position limits | | Fatal System Errors | F9001 | Error internal function call; general software malfunction | Cycle power; if persists, drive firmware needs update or drive replacement | | | F9002 | Error internal RTOS function call; software glitch in real-time OS | Contact Rexroth service; potential firmware issue | | | F9003 | Watchdog timer triggered | Cycle power; drive replacement may be required if persistent |
Cause : The primary interface link to the master PLC (via PROFIBUS, Ethernet/IP, or ControlNet) dropped out.
Hardware Defective. The PPC internal hardware is faulty (Sync signal lost). rexroth ppcr221 fault codes full
Rexroth fault codes generally follow a hierarchical prefix system:
is statistically the most frequent alarm code displayed on the Rexroth PPC-R22.1 controller.
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Check the drives (e.g., DIAX or IndraDrive) for accompanying fault codes. Comprehensive Troubleshooting Guide: Rexroth PPC-R22
Alternatively, log into the controller via to view the comprehensive network diagnostic register. This software explicitly states which physical axis index triggered the loop shutdown. Step-by-Step Emergency Troubleshooting Workflow
F0098 does not necessarily indicate a failure of the PPC controller itself. Instead, it signifies that one of the connected servo drives (IndraDrive or similar) has reported a fault to the controller. Troubleshooting F0098: Open the SynTop software on your PC connected to the PPC.
When the PPC displays , follow these steps to efficiently isolate the problem:
: He scanned the bus communication status. A break here would mean the brain couldn't talk to the limbs, but the communication lines were green. Finally, the software pinpointed the ghost in the machine: | Various encoder fault alarms | Group includes
Solution: Query the individual drive displays or parameters. Look for common drive errors like (power section undervoltage) or F8069 (internal logic supply error). Once the drive is cleared, the F98 on the master PPC can be reset. ⚠️ Process Diagnostics & Common E-Codes
: These memory errors often required a simple power cycle to clear. Elias tried the reset, but the screen stubbornness remained. F31 to F40
Occurs if an automated application script attempts to access a protected parameter block without clearing safety privileges.