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- ABB
- 1SFB536268D1008
- Control Board
- Sweden (SE)
- 280 × 40 × 100 mm
- 0.6 kg
- Xiamen, China
- New & In Stock
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Product Overview
The ABB 1SFB536268D1008 is a PSTX Softstarter Control Board used within ABB PSTX softstarter assemblies to handle control processing and coordinate motor-starting functions. It works with the softstarter’s power-control section to execute configured starting, stopping, monitoring, and protection-related operations.
In an industrial motor-control cabinet, the control board receives operating commands from the local control circuit, PLC, HMI, or other connected control equipment. It processes these commands and coordinates the corresponding operation of the PSTX power section, allowing the motor to be started and stopped according to the configured softstarter sequence.
The board is applicable to motor-driven equipment where controlled acceleration and stopping are preferred over direct-on-line starting. Pump stations, fans, compressors, conveyors, and process machinery are typical applications where PSTX softstarters are used to reduce mechanical shock and manage motor-starting conditions.
For service engineers, the control board is one part of the complete PSTX assembly. Troubleshooting should therefore include the control interface, power section, motor circuit, communication connections, configured parameters, and external control signals rather than treating the board as an isolated component.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Model | 1SFB536268D1008 |
| Product Family | PSTX Softstarter |
| Product Type | Softstarter Control Board |
| Primary Function | Softstarter control and processing |
| System Role | Central softstarter control interface |
| Application | Industrial motor starting and control |
| Dimensions | 280 × 40 × 100 mm |
| Weight | 0.6 kg |
Product Features
- PSTX series control board for ABB softstarter systems
- Handles control processing within the softstarter assembly
- Coordinates operating commands with the PSTX power-control section
- Supports controlled motor starting and stopping functions
- Suitable for automated industrial motor-control systems
- Works with associated PSTX control, monitoring, and protection functions
- Applicable to maintenance and replacement of compatible PSTX softstarter assemblies
Working Principle
The 1SFB536268D1008 operates within the control section of the PSTX softstarter. External operating commands are received through the associated control architecture and processed by the control board according to the configured operating conditions.
During a motor start, the control board coordinates the starting sequence with the PSTX power section. The power section then regulates the electrical power delivered to the motor, allowing acceleration to take place in a controlled manner.
The same control path is used when stopping the motor. Depending on the configured application, the PSTX system can manage the stopping sequence rather than simply removing motor power instantaneously.
Control Command → 1SFB536268D1008 → PSTX Power Section → Motor
Feedback and status information can also be processed for monitoring and diagnostic functions. External alarms, control conditions, communication status, and other configured signals can influence how the softstarter responds to an operating command.
Role in an ABB PSTX Softstarter Control Architecture
The 1SFB536268D1008 occupies the control-processing layer of the PSTX softstarter. It connects external operating commands and system information with the internal power-control section responsible for regulating motor power.
PLC / HMI / Control Circuit → PSTX Control Board → PSTX Power Section → Motor
| System Element | Function |
|---|---|
| PLC / Controller | Sends automatic motor-control commands |
| HMI / Operator Interface | Provides local operation and status information |
| PSTX Control Board | Processes commands and manages softstarter control |
| PSTX Power Section | Regulates electrical power supplied to the motor |
| Motor Protection | Protects the motor and associated electrical circuit |
| Motor | Converts electrical power into mechanical output |
| Driven Equipment | Performs the required process operation |
The control board therefore forms part of the complete motor-control path and depends on the associated PSTX hardware and configuration for normal operation.
Industrial Applications
| Application | Typical Use |
|---|---|
| Pump Stations | Controlled acceleration and stopping of pump motors |
| HVAC Systems | Soft starting of fans and ventilation equipment |
| Compressors | Reduced starting stress on compressor motors |
| Conveyor Systems | Controlled motor acceleration for material movement |
| Water Treatment | Motor control for pumps and process equipment |
| Process Machinery | Controlled starting of production equipment |
| Material Handling | Smooth starting of motor-driven machinery |
| Industrial Equipment | General-purpose motor starting and stopping |
Installation and Maintenance
- Confirm that the 1SFB536268D1008 is the correct control-board replacement for the installed PSTX assembly.
- Disconnect and isolate the softstarter from hazardous electrical energy before accessing internal components.
- Record existing connectors and control wiring before removing the original board.
- Inspect the replacement location for dust, contamination, moisture, or physical damage.
- Use appropriate ESD precautions when handling the electronic control board.
- Check all board connectors for correct alignment before installation.
- Verify that the associated PSTX power section and other internal components are suitable for the replacement.
- Reconnect control wiring according to the approved electrical documentation.
- Restore control power and verify normal PSTX initialization.
- Check alarms, status indications, and external control inputs after installation.
- Perform a controlled motor-start and motor-stop test before normal operation.
- Verify communication, protection functions, and all required external control signals before returning the equipment to service.
Compatible System Components
| Component | Function |
|---|---|
| ABB PSTX Softstarter | Complete softstarting and motor-control system |
| PSTX Power Section | Controls electrical power delivered to the motor |
| Motor | Receives the controlled starting and stopping power |
| PLC / Controller | Provides automatic operating commands |
| HMI / Operator Panel | Provides local control and monitoring |
| Motor Protection Devices | Protects the motor and electrical installation |
| Communication Interface | Exchanges control and diagnostic information |
| Bypass Contactor | Provides bypass operation where configured |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| ABB PSTX Softstarter Series | Softstarter | Industrial motor starting and control |
| ABB PSTX Control Boards | Control Board | PSTX control and processing functions |
| ABB PSTX Power Sections | Power-Control Section | Motor power regulation |
| ABB PSTX Communication Modules | Communication Module | Network monitoring and control |
| ABB PSTX Accessories | Softstarter Accessories | Installation and maintenance |
| ABB PSTB Softstarter Series | Softstarter | Industrial motor starting applications |
Key Advantages
- Provides control processing within the ABB PSTX softstarter architecture.
- Coordinates external commands with the PSTX power-control section.
- Supports controlled motor acceleration and stopping.
- Suitable for automated motor-control applications.
- Useful as a replacement component during PSTX service and maintenance.
- Allows the softstarter control system to work with PLC, HMI, and external control circuits.
Technical FAQs
What role does the 1SFB536268D1008 play inside a PSTX softstarter?
It functions as a control-board component within the PSTX assembly, processing operating information and coordinating the softstarter’s control functions with the associated power section.
What could cause the motor not to start even when the control board appears to be powered?
The fault may be related to an external start command, active protection condition, control wiring, configured permissive, communication path, motor circuit, or power section. These conditions should be checked before replacing the control board.
Is the 1SFB536268D1008 suitable as a direct replacement based only on the part number?
The part number must be checked against the complete PSTX assembly and application configuration. Connector arrangement, associated hardware, control configuration, and system requirements should be verified before installation.
How can the control board be checked after installation?
First verify normal initialization and status indications. Then check external commands, alarms, communication functions, and protection responses, followed by a controlled motor-start and motor-stop test.