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- 1SFB536171A1207
- Power Supply Board
- Sweden (SE)
- 150 × 25 × 100 mm
- 0.2 kg
- Xiamen, China
- New & In Stock
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Product Overview
The ABB 1SFB536171A1207 PSTX Softstarter Power Supply Board is an internal power-supply circuit board used within compatible ABB PSTX softstarter assemblies. It forms part of the softstarter’s internal electrical architecture, supporting the power distribution required by the control and electronic circuits.
Unlike the main power switching stage, the power supply board is concerned with delivering the appropriate internal electrical power to the softstarter’s control electronics and associated circuits. Its condition therefore has a direct relationship with the availability of the softstarter’s control functions.
In an industrial motor-control panel, the PSTX softstarter regulates motor starting and stopping while its internal electronic circuits handle control, monitoring, protection, and communication functions. The power supply board supports these electronics so that the softstarter can process commands and operating information during normal operation.
The board is particularly relevant during PSTX maintenance when symptoms such as loss of control power, abnormal electronic operation, or failure of the softstarter to initialize are being investigated. Replacement should be performed with attention to the specific PSTX assembly and internal board configuration.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Model | 1SFB536171A1207 |
| Product Family | PSTX |
| Product Type | Softstarter Power Supply Board |
| Primary Function | Internal power supply for softstarter electronics |
| System Role | Softstarter internal power subsystem |
| Application | Motor starting and control systems |
| Dimensions | 150 × 25 × 100 mm |
| Weight | 0.2 kg |
Product Features
- Power supply board for compatible ABB PSTX softstarter assemblies
- Supports internal power distribution for softstarter electronic circuits
- Forms part of the PSTX control and electronic architecture
- Supports operation of associated control and monitoring circuitry
- Suitable for maintenance and replacement of compatible PSTX assemblies
- Used within industrial motor-starting applications
- Works as an internal subsystem rather than as an independent softstarter controller
Working Principle
The power supply board receives electrical power from the softstarter’s internal supply path and converts or distributes it as required by the electronic circuits within the PSTX assembly.
Softstarter Power Input → Power Supply Board → Internal Control Power → Control / Monitoring / Communication Electronics
Once the required internal power is available, the PSTX control electronics can perform functions such as monitoring operating conditions, processing control commands, managing motor-starting parameters, and communicating status information.
The board does not itself perform the motor’s soft-start control. Instead, it supports the electronic circuits responsible for those functions. A failure in this power-supply stage can therefore affect several softstarter functions simultaneously, even when the main power semiconductor section is not damaged.
Role in a PSTX Softstarter Control Architecture
The 1SFB536171A1207 belongs to the internal power architecture of the PSTX softstarter. It supports the electronic control section that coordinates motor starting, stopping, monitoring, protection, and related functions.
AC Supply → PSTX Softstarter → Internal Power Supply Board → Control Electronics → Power Control Stage → Motor
| System Element | Function |
|---|---|
| AC Supply | Provides electrical power to the softstarter system |
| PSTX Softstarter | Controls the motor starting and stopping process |
| Power Supply Board | Supplies internal power to electronic circuits |
| Control Electronics | Processes commands, settings, monitoring, and protection |
| Power Semiconductor Stage | Regulates motor voltage and current during starting |
| Motor | Receives controlled electrical power from the softstarter |
| HMI / Control System | Provides external operating commands and status |
Industrial Applications
| Application | Typical Use |
|---|---|
| Pump Systems | Supports PSTX softstarter electronics for motor starting |
| Fans and Blowers | Internal power support for motor-control applications |
| Compressors | Supports softstarter control and monitoring electronics |
| Conveyors | Internal power subsystem for controlled motor starting |
| Industrial Machinery | Maintains electronic control functions within PSTX units |
| HVAC Equipment | Softstarter-based motor starting for large equipment |
| Water Treatment Systems | Motor starting and control for pumps and auxiliaries |
| Process Plants | Internal PSTX power architecture in motor-control panels |
Installation and Maintenance
- Verify the complete 1SFB536171A1207 part number before replacement.
- Confirm that the board matches the specific PSTX softstarter assembly being serviced.
- Disconnect and isolate the softstarter from all applicable electrical power sources before opening the unit.
- Allow the equipment to reach a safe condition before accessing internal electronic components.
- Record existing board connections and cable positions before removing the original board.
- Inspect connectors, terminals, and associated wiring for signs of overheating, contamination, or mechanical damage.
- Remove the existing board carefully to avoid damaging adjacent electronic components.
- Install the replacement board in the correct position and secure all mechanical fixings.
- Reconnect all identified electrical and control connections according to the original configuration.
- Inspect the assembly for loose connections or foreign material before re-energizing the softstarter.
- Apply power and verify that the PSTX control electronics initialize correctly.
- Test the complete softstarter operation, including control, monitoring, protection, and motor-starting functions, before returning the equipment to service.
Compatible System Components
| Component | Function |
|---|---|
| ABB PSTX Softstarter | Provides controlled motor starting and stopping |
| PSTX Control Electronics | Processes motor-control commands and operating information |
| Power Semiconductor Stage | Controls electrical power delivered to the motor |
| PSTX Keypad / HMI | Provides local parameter setting and operator interaction |
| Motor | Receives controlled power during starting and operation |
| Motor Protection System | Provides protection against configured operating faults |
| Control Panel | Houses and distributes power to the softstarter system |
| External PLC / Controller | Provides higher-level motor-control commands |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| ABB PSTX Series | Softstarter | Industrial motor starting and stopping |
| ABB PSTX Control Components | Softstarter Control Component | PSTX control and monitoring architecture |
| ABB PSTX Power Components | Softstarter Power Component | Motor power switching and control |
| ABB PSTX Internal Boards | Electronic Circuit Board | Softstarter internal maintenance |
| ABB PSTX Accessories | Softstarter Accessory | Control and installation functions |
| ABB PSTX Keypad | Operator Interface | Local softstarter configuration |
| ABB Softstarter Series | Motor Softstarter | Industrial motor starting applications |
Key Advantages
- Supports the internal electronic power architecture of compatible PSTX softstarters.
- Helps maintain power availability for PSTX control and monitoring circuits.
- Provides a serviceable internal component for softstarter maintenance.
- Suitable for troubleshooting power-related faults within PSTX assemblies.
- Supports continued operation of the PSTX control architecture when correctly replaced.
- Integrates with the electronic and control subsystems of compatible ABB PSTX softstarters.
Technical FAQs
What is the function of the power supply board inside a PSTX softstarter?
The board supplies or distributes the internal electrical power required by the PSTX control and electronic circuits. It supports the electronics that perform control, monitoring, protection, and related functions rather than directly controlling the motor power stage.
What symptoms may indicate a problem with the PSTX power supply board?
Possible symptoms include failure of the softstarter’s control electronics to initialize, loss of control functions, abnormal electronic indications, or simultaneous failure of functions that depend on the internal control power supply. The incoming supply, connectors, wiring, and other internal circuits should also be checked.
Can the power supply board be tested independently from the complete PSTX softstarter?
Testing should be performed as part of the applicable PSTX service procedure because the board operates within the softstarter’s internal power and control architecture. Measurements and replacement procedures should account for the associated control electronics and internal connections.
What should be checked after replacing a PSTX power supply board?
Verify the board installation, connectors, internal wiring, and control-electronics initialization first. The softstarter should then be tested under controlled conditions to confirm its control, monitoring, protection, and motor-starting functions operate normally.