The codes are grouped into four logical categories: Overcurrent & Overload (F10x–F20x), Voltage & Power Supply (F30x–F40x), Encoder & Feedback (F50x–F60x), Communication & Fieldbus (F70x–F90x), and System & Internal Errors (A/B Codes).
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.
The PPCR221 often acts as a slave on a factory network. A communication fault will not stop the motor instantly, but it will cause a controlled stop. rexroth ppcr221 fault codes full
| Fault Code | Description | Common Cause | Immediate Action | | :--- | :--- | :--- | :--- | | F701 | Fieldbus Timeout (Watchdog) | PLC/controller stopped sending cyclic data. | Check PLC scan time; increase watchdog timeout in parameter P-0-0360. | | F702 | Profibus Configuration Mismatch | GSD file ID mismatch between master and slave. | Re-import the Rexroth GSDML file into your engineering software. | | F710 | EtherCAT State Machine Error | Slave failed to transition from Pre-Op to Safe-Op. | Cycle power to the PPCR221. Check EtherCAT cable integrity. | | F720 | Modbus RTU CRC Error | Corrupted bytes; baud rate mismatch. | Verify parity, stop bits, and baud rate (default is 19.2k, 8, N, 1). |
Troubleshooting Sequence for F701:
These codes indicate that the current flowing to the motor or load exceeds the controller’s safe limit. The codes are grouped into four logical categories:
| Fault Code | Description | Common Cause | Immediate Action | | :--- | :--- | :--- | :--- | | F101 | Output Overcurrent (Instantaneous) | Short circuit in motor cables; defective motor winding. | Disconnect power. Megger test motor insulation. | | F102 | Ground Fault | Phase-to-ground short inside motor or cable. | Check all cable glands and terminals for moisture or chafing. | | F103 | Overload (I²t) | Mechanical jam; extended stall condition. | Manually rotate driven load. Check gearbox bearings. | | F110 | Dynamic Braking Overload | Regenerative power exceeds braking resistor capacity. | Increase deceleration time; check resistor for open circuit. | | F112 | Short Circuit on Output Phase U | Power transistor (IGBT) failure in U-leg. | Replace PPCR221 power module. Do not reset without repair. |
Diagnostic Focus for F10x Codes:
How easy is it to decipher the "full" list of codes? When a fault occurs, the drive halts power
When a fault occurs on the PPC-R 22.1, follow this workflow to minimize downtime:
The Bosch Rexroth PPC-R 22.1 is a robust industrial PC designed for control and drive tasks. When a malfunction occurs, the system generates specific error messages displayed on the HMI (VDP/VDI) or logged in the error history.
The Bosch Rexroth PPC-R22.1 (often referred to as the PPCR221) is a robust, industrial-grade Programmable Logic Controller (PLC) designed specifically for hydraulic and motion control applications. While the hardware is renowned for its durability in harsh environments, its true value lies in its diagnostic system. For maintenance engineers and technicians, understanding the "full" scope of its fault codes is the difference between hours of downtime and a quick reset.
This review evaluates the controller’s fault code architecture, usability, and the process of retrieving a full diagnostic report.