ABB 1SFB 536068D1011 Main Control Board for PST / PSTB Series Soft‑Starter

Description

Hardware and Performance Specifications Auxiliary supply: Powered by soft‑starter internal auxiliary power supply Control functions: Soft‑start, soft‑stop, current‑limit starting, kick‑start, pump‑stop function Binary I/O: Multi‑channel digital inputs and relay outputs for external interlock, alarm and status feedback Communication interfaces: Field‑bus interface supporting Modbus‑RTU protocol Mounting mode: Internal plug‑in PCB board inside PST / PSTB soft‑starter cabinet Protection class: IP20 Operating temperature: ‑10 ℃ ~ +50 ℃ Storage temperature: ‑40 ℃ ~ +85 ℃ Humidity: 5‑95 %RH non‑condensing EMC compliance: Comply with IEC 61000‑4 series industrial electromagnetic‑compatibility standards Dimension & weight: 260 × 170 × 40 mm, weight approx. 2.0 kg Certifications: CE approval

Main Functions Real‑time sampling of motor operating current and voltage signals, execute soft‑start and soft‑stop control algorithm for three‑phase AC motors. Support multiple starting‑modes: current‑limit start, voltage‑ramp start, kick‑start for heavy‑load conditions; support pump‑stop soft‑stop mode. Built‑in complete motor‑protection functions: motor overload protection, phase‑loss protection, phase‑unbalance protection, thyristor fault monitoring. Process external interlock digital‑input signals; output relay‑contact signals for fault alarm and status indication. Event logging and fault‑code storage for on‑site fault troubleshooting. Realize data exchange with upper‑level PLC and monitoring system via Modbus‑RTU field‑bus. Hardware self‑diagnosis detects internal circuit, measuring‑loop and trigger‑circuit faults, and generates corresponding fault codes. Parameter setting and commissioning are completed via soft‑starter local keypad or PC commissioning tool.

Installation Requirement Internal installation inside PST / PSTB soft‑starter enclosure. High‑power main‑circuit cables and weak‑signal control wiring shall be routed separately. Ensure reliable protective grounding of soft‑starter cabinet. After board replacement, confirm full part‑number 1SFB536068D1011 matches original soft‑starter model, download or restore complete parameter settings. Perform power‑on test, motor start‑up test, I/O and communication verification. This control board is model‑specific; different revision boards cannot be directly interchanged without parameter adaptation. Do not put into service until no hardware self‑diagnosis fault alarm exists.

Typical Application Scenarios Main‑control board for ABB PST / PSTB series soft‑starters, applied for fan, pump, compressor and conveyor‑belt motor control in water‑treatment plants, mining, petrochemical and power‑plant auxiliary‑motor systems; used for soft‑starter maintenance and spare‑part replacement.

Key Features

1. Core control PCB for PST/PSTB soft‑starter series, realizes full‑range soft‑start‑stop and motor‑protection functions.
2. Multiple selectable start‑stop modes, adapt to diverse industrial‑load requirements.
3. Built‑in comprehensive fault‑diagnosis and event‑recording function for convenient on‑site troubleshooting.
4. Support Modbus‑RTU communication, easy to integrate with plant automation control system.
5. Internal PCB assembly structure; strict full‑part‑number matching shall be observed during spare‑part replacement.