Bosch Rexroth at a glance
- Manufacturer
- Bosch Rexroth AG
- Relevant areas
- Industrial control systems, servo drives, frequency converters and motion automation
- Selected families on this page
- ctrlX CORE, ctrlX DRIVE and IndraDrive
- Main engineering and diagnostic environments
- ctrlX CORE web interface/logbook and ctrlX WORKS; ctrlX DRIVE Engineering for the selected drive; IndraWorks and firmware-specific IndraDrive documentation
- Diagnostic model
- ctrlX CORE aggregates contextual application/system logs; ctrlX DRIVE and IndraDrive use coded diagnostic messages tied to runtime/firmware and device state
- Manufacturer website
- Bosch Rexroth ↗
Selected Bosch Rexroth product families
ctrlX CORE
- Role
- ctrlX CORE is Bosch Rexroth's scalable industrial control platform.
- Typical use
- The platform can act as a PLC or motion controller, an IoT or security gateway, or part of a broader ctrlX AUTOMATION architecture.
- Diagnostic identifiers
- Web-interface logbook, main/detailed diagnostics, app and device logs
- Important
- Messages can come from device administration, installed apps, PLC/motion runtimes, fieldbus devices or user software.
ctrlX DRIVE
- Role
- ctrlX DRIVE is Bosch Rexroth's modular servo-drive system for individual axes and multi-axis machines.
- Typical use
- ctrlX DRIVE is used in applications ranging from simple single-axis motion to coordinated multi-axis machinery.
- Diagnostic identifiers
- F-/E-/C-class diagnostic message, diagnostic memory, parameters, command/actual values and axis topology
- Important
- Interpret the complete diagnostic message using the exact device, installed configuration and current manufacturer documentation.
IndraDrive
- Role
- IndraDrive is Bosch Rexroth's established family of servo drives and frequency converters.
- Typical use
- Bosch Rexroth lists IndraDrive applications including machine tools, automotive, assembly and handling, packaging and processing, and printing and converting.
- Diagnostic identifiers
- Firmware-specific diagnostic messages, IndraWorks data, controller/power-section and motor/encoder context
- Important
- Some familiar F-code labels can appear across Rexroth drive documentation, but runtime/firmware and hardware scope remain decisive.
How to diagnose Bosch Rexroth devices
Use the complete diagnostic identifier together with the exact device, configuration and manufacturer documentation. The number or display label alone does not establish the cause.
- 01Identify the device
What to check: Exact product, hardware variant, options and firmware.
Why it matters: Diagnostic meanings depend on the installed configuration.
- 02Capture the identifier
What to check: Complete code, full message, timestamp and operating state.
Why it matters: A short code can omit the context needed to interpret an event.
- 03Identify the source
What to check: Controller, module, drive, amplifier, application or connected system.
Why it matters: Similar identifiers can come from different diagnostic systems.
- 04Read detailed diagnostics
What to check: Device log, engineering software, display and event history.
Why it matters: Detailed records identify the affected component and event sequence.
- 05Match the correct manual
What to check: Documentation for the exact family, hardware and software version.
Why it matters: This avoids using the meaning from a different product or release.
ctrlX DRIVE fault codes
These five entries are concise references for ctrlX DRIVE Runtime from AXS-V-0308. The current online diagnostic page for the installed runtime remains authoritative.
F2018 · Device overtemperature shutdown
F2018Device overtemperature shutdown
Documented meaning: The drive has shut down because the monitored device/heat-sink temperature reached the shutdown threshold.
Scope: ctrlX DRIVE Runtime from AXS-V-0308
Open the Bosch Rexroth source ↗F2026 · Undervoltage in power section
F2026Undervoltage in power section
Documented meaning: The drive detected insufficient voltage in the power section.
Scope: ctrlX DRIVE Runtime from AXS-V-0308
Open the Bosch Rexroth source ↗F2028 · Excessive deviation
F2028Excessive deviation
Documented meaning: With the position loop closed, the drive cannot follow the commanded position within the configured following-error window.
Scope: ctrlX DRIVE Runtime from AXS-V-0308
Open the Bosch Rexroth source ↗F2819 · Mains failure
F2819Mains failure
Documented meaning: The drive detected a temporary or permanent mains failure.
Scope: ctrlX DRIVE Runtime from AXS-V-0308
Open the Bosch Rexroth source ↗F2820 · Braking resistor overload
F2820Braking resistor overload
Documented meaning: The calculated or monitored load on the braking resistor exceeds its permitted capacity.
Scope: ctrlX DRIVE Runtime from AXS-V-0308
Open the Bosch Rexroth source ↗Bosch Rexroth-specific questions
What is the difference between ctrlX CORE and ctrlX DRIVE?
ctrlX CORE is an industrial control platform that runs automation apps; ctrlX DRIVE is the drive system that controls motors and axes. One machine may use both, but their logs, hardware identifiers and remedies are not interchangeable.
Is IndraDrive the same as ctrlX DRIVE?
No. They are different Bosch Rexroth drive platforms with different hardware and firmware documentation. Always use the complete type code and firmware/runtime reference.
Where are ctrlX CORE diagnostic messages found?
The ctrlX CORE web interface includes Diagnostics → Logbook. Preserve or export the complete log, including main and detailed diagnostics, source, level and timestamp.
What causes ctrlX DRIVE F2028?
F2028 occurs when a closed position loop cannot keep actual position within the following-error window relative to the command. Mechanical, feedback, command-profile and control-setting causes must be distinguished from captured evidence.
What is the difference between F2026 and F2819?
F2026 describes undervoltage in the power section; F2819 identifies a mains failure. A mains event may be related to both, but the complete sequence and supply-unit context determine the investigation.
How should maintenance respond to F2820?
Preserve the deceleration profile and duty cycle, let braking components reach a safe temperature and have a qualified engineer compare resistor configuration and application energy with the approved design. Do not simply increase limits.