Description
🔹 Product Overview
The BOSCH 052038-304401 / 054450-103401 Servo Board is a legacy Bosch industrial servo-control circuit board intended for use within Bosch automation and motion-control equipment. The two Bosch numbers are associated with the same listed servo-board assembly and should both be checked when matching a replacement.
As a board-level spare, the unit is intended for maintenance, repair, and replacement of existing Bosch control equipment rather than as a standalone servo drive. Exact electrical characteristics, firmware, connector configuration, and system compatibility should be verified against the original board before installation.

⚙️ Key Features
- Bosch industrial servo-control PCB
- Main reference: 052038-304401
- Associated reference: 054450-103401
- Designed for integration into Bosch automation equipment
- Board-level replacement for legacy control systems
- Suitable for industrial maintenance and spare-parts inventory
- Supports repair of existing servo-control assemblies
- Exact system function depends on the host Bosch controller or drive architecture
- Recommended for one-for-one replacement after identification of the original board revision
📋 Technical Datasheet
| Parameter | Specification |
|---|---|
| Brand | BOSCH |
| Model / Part Number | 052038-304401 |
| Associated Part Number | 054450-103401 |
| Product Series | Bosch Industrial Servo / Motion Control |
| Product Name | Servo Board |
| Product Type | Servo Control Circuit Board |
| Primary Function | Servo and motion-control signal processing |
| System Application | Industrial Automation and Machine Control |
| Board Architecture | Configuration-dependent Bosch control PCB |
| Product Status | Legacy Industrial Automation Spare |
🔧 Servo Control Function
The servo board functions as a board-level element within a larger Bosch control architecture. Depending on the host equipment, the board may participate in servo command processing, feedback handling, control logic, or communication between the CNC/automation controller and the servo power section.
Because the exact host system for 052038-304401 / 054450-103401 is not sufficiently identified by the part number alone, the board should not be treated as a universal servo amplifier.
For replacement work, technicians should compare:
- Original Bosch part number
- Secondary part number
- PCB revision
- Connector arrangement
- Component layout
- Firmware or memory configuration
- Host controller model
- Servo amplifier and motor configuration
🔌 System Integration
A typical legacy Bosch motion-control architecture may be arranged conceptually as:
CNC / Machine Controller → Servo Control Board → Servo Power Section → Servo Motor
The board should therefore be evaluated as part of the complete control system. Replacing it with a visually similar Bosch board having a different part number can result in incorrect feedback processing, incompatible control signals, or system startup faults.
🏭 Typical Applications
The board is suitable for maintenance of legacy Bosch industrial automation and servo-control equipment, particularly where the original control PCB has failed or has become difficult to source.
Typical maintenance scenarios include:
- CNC machine control
- Industrial machine tools
- Servo-axis control systems
- Automated production machinery
- Legacy Bosch motion-control cabinets
- Factory equipment refurbishment
- Controller repair and spare-parts replacement
🛠️ Installation & Commissioning
- Record the original identification
Confirm 052038-304401 and 054450-103401 before removing the existing board. - Switch off system power
Disconnect the machine and allow DC-bus components to discharge according to the equipment manufacturer’s safety procedure. - Document wiring
Photograph and label all connectors before removing the original PCB. - Check board revision
Compare component placement, revision markings, connectors, and auxiliary identification numbers. - Install the replacement
Seat the board carefully and ensure all connectors are fully engaged. - Inspect grounding and shielding
Verify that protective grounding and signal shielding are restored correctly. - Power up progressively
Check controller diagnostics before enabling servo power. - Test the axis
Verify feedback, direction, homing, positioning, and servo status before returning the machine to production.
🔍 Troubleshooting
Board is not recognized:
Check the part number, board revision, connector seating, backplane connections, and host-controller compatibility.
Servo alarm appears after replacement:
Compare the original and replacement board configuration. A different revision or incompatible control-board variant may produce system alarms.
Feedback or positioning fault:
Inspect encoder/resolver wiring, shielding, connector pins, and feedback-related configuration before assuming the replacement board is defective.
Axis does not enable:
Check the complete servo chain, including controller enable signals, safety circuits, power section, motor feedback, and drive diagnostics.
Intermittent operation:
Inspect connectors, solder joints, PCB contamination, oxidation, and cabinet vibration. Legacy boards should also be checked for aging components.
🧰 Maintenance
For long-term operation of legacy Bosch servo systems:
- Keep a tested spare board in inventory.
- Store replacement PCBs in antistatic packaging.
- Avoid touching exposed electronic components.
- Inspect connectors during scheduled maintenance.
- Record board revisions and machine compatibility.
- Maintain backups of machine parameters where applicable.
- Check cooling and cabinet ventilation.
- Investigate repeated servo alarms rather than repeatedly replacing boards.
🔄 Replacement Considerations
The 052038-304401 and 054450-103401 references should be used together when identifying this servo board. Available listings identify the Bosch assembly as a Servo Board, but detailed electrical specifications for the exact configuration are not sufficiently established from the part number alone.
Before purchasing or installing a replacement, confirm the original PCB markings and connector configuration. This is especially important for older Bosch systems where similar-looking CNC, servo, interface, and control boards may have different functions.
❓ FAQ
What is BOSCH 052038-304401?
It is a Bosch industrial Servo Board used as a board-level component within compatible automation or motion-control equipment.
Is 054450-103401 related to 052038-304401?
Yes. The two numbers are associated with the servo-board listing and should be retained as identification references when matching the replacement.
Is this a complete servo drive?
No. It should be treated as a control PCB rather than a complete servo drive or motor controller.
Can this board be installed in any Bosch servo system?
No. Compatibility depends on the host system, PCB revision, connectors, and control architecture.
Should the original board be kept for comparison?
Yes. Comparing part numbers, revisions, connectors, and component layouts is strongly recommended before commissioning a replacement.
Is this suitable as a maintenance spare?
Yes. It is particularly useful for maintaining legacy Bosch industrial automation equipment where original boards are no longer readily available.
🔗 10 Related Bosch Models / Components
- BOSCH 052038-308401 CNC Control Card
- BOSCH 052902-101 CNC Control Card
- BOSCH 052902-102401 CNC Control Card
- BOSCH 056306-103401 CNC Control Card
- BOSCH 048413-105401 CNC Control Card
- BOSCH 048413-106401 Servo Module
- BOSCH 052910-306110 PS200 CNC Power Supply Module
- BOSCH 052910-308110 PS200 CNC Power Supply Module
- BOSCH 0-608-830-156 12-Slot Rack with Power Supply
- BOSCH 0-608-830-158 Rack Assembly
📦 Product Summary
The BOSCH 052038-304401 / 054450-103401 Servo Board is a legacy board-level spare for Bosch industrial automation and motion-control equipment. Its primary value is in maintaining existing Bosch servo and machine-control installations where an original PCB must be replaced without replacing the complete control system.
For procurement and replacement, always match 052038-304401, 054450-103401, PCB revision, connector layout, and host-system configuration before installation.
