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The ABB PST250-600-70 1SFA894013R7000 is a heavy-duty industrial soft starter engineered for smooth startup, precise speed control, and comprehensive protection of medium-to-large AC induction motors—specifically optimized for applications requiring reduced mechanical/electrical 冲击 (shock) during motor startup, energy efficiency, and seamless integration with industrial control systems (e.g., large pumps, fans, compressors, conveyors, and centrifuges in manufacturing, utilities, and heavy industry). It functions as a "motor startup regulator," using thyristor-based voltage/current control to gradually ramp up motor speed, eliminating the inrush current (typically 5–7× rated current) of direct-on-line (DOL) starting. Designed to comply with global electrical safety standards and withstand harsh industrial conditions, it balances performance, durability, and safety for high-power motor management. Below is its detailed specification:
- Product Model: PST250-600-70 (Ordering Part Number: 1SFA894013R7000)
- Product Series: ABB PST Series Heavy-Duty Soft Starters (Medium-Large AC Motor Control)
- Core Function: Enables smooth motor startup/shutdown via voltage/current ramping; provides overload, overcurrent, and phase-loss protection; supports speed control for variable-load applications; integrates with PLC/DCS via communication protocols; includes built-in bypass 接触器 (contactor) for steady-state efficiency
- Electrical & Control Specifications:
- Rated Operational Current (Ie): 250A (400V AC); 132A (690V AC)
- Power Range: Up to 132kW (400V AC); up to 200kW (690V AC)
- Voltage Rating: 380V~690V AC (50/60Hz, ±10% tolerance) | Wide voltage range suits global industrial grids; 250A current capacity covers most medium-large motors (e.g., 110kW water pumps, 132kW fans) |
| Startup/Shutdown Modes | - Startup: Voltage ramp (0.1–30s), current limit (1.5–6× Ie), torque control (for high-inertia loads)
- Shutdown: Voltage ramp (0.1–30s), coast-to-stop, soft stop (for pumps to avoid water hammer)
- Bypass Function: Built-in 3-phase bypass contactor (activates after startup, reduces losses to <1%) | Voltage ramp eliminates mechanical shock; bypass contactor cuts steady-state power loss to <1%, saving energy in 24/7 operations |
| Protection Features | - Overload: Class 10/20 thermal protection (adjustable trip time)
- Overcurrent: 6× Ie (instantaneous trip)
- Additional: Phase loss, phase imbalance, under/overvoltage, motor stall, thyristor overheating
- Fault Response: Latching (manual reset) or auto-recovery (configurable for non-critical faults) | Class 10 protection matches standard motor thermal time constants; stall detection prevents motor burnout during jams |
- Mechanical & Environmental Specifications:
- Mounting Type: Floor mount or wall mount (IP20 integral enclosure; IP54 optional with protective cover)
- Cooling: Forced air (dual redundant fans) + aluminum heat sink
- Weight: Approximately 18kg
- Indicators: 7-segment LED display (current/voltage/speed); 6 status LEDs (run, bypass, fault, ready, etc.) | Redundant cooling ensures reliability at full load; LED display enables on-site diagnostics without tools |
| Environmental Ratings | - Operating Temperature Range: -10℃~+60℃ (-14℉~140℉); +65℃ with 10% derating
- Storage Temperature Range: -40℃~+85℃ (-40℉~185℉)
- Humidity Tolerance: 5%~95% RH (non-condensing, 40℃)
- Vibration Resistance: 10~50Hz, 0.5g acceleration (IEC 60068-2-6)
- Shock Resistance: 20g (11ms half-sine, IEC 60068-2-27)
- EMC Compliance: EN 61000-6-2 (immunity: Level 3); EN 61000-6-3 (emission: Class B) | Wide temperature range suits unconditioned industrial spaces; Level 3 EMC immunity resists interference from VFDs/motors |
- Communication & Interface Specifications:
- Data Rate: Up to 115.2kbps (Modbus RTU); 100Mbps (Profinet/EtherNet/IP)
- Monitored Data: Motor current/voltage/speed, soft starter temperature, fault codes | Modbus integration enables remote control via PLC/DCS; optional Profinet supports real-time monitoring in smart factories |
| Control Interfaces | - Analog Inputs: 2× 0~10V/4~20mA (for speed reference/load feedback)
- Digital Inputs: 4× dry contacts (start/stop, reset, emergency stop)
- Digital Outputs: 2× relay outputs (status, fault)
- Configuration: ABB PST SoftWare (via USB) or front-panel keypad | Analog inputs enable speed control via external sensors (e.g., pressure transducers for pumps); keypad simplifies on-site parameter setup |
- Compliance Standards: CE, UL 508, CSA C22.2 No.14, IEC 60947-4-2 (soft starters), RoHS, ISO 9001 |
- Smooth Startup/Shutdown: Voltage ramp (0.1–30s) and current limit (1.5–6× Ie) modes—eliminates electrical inrush (reduces to <3× Ie) and mechanical shock (e.g., pump water hammer, fan blade impact), extending motor and equipment lifespan by 30%+ compared to DOL starting.
- Built-In Bypass Contactor: Activates automatically after startup (when motor reaches ~95% speed)—cuts steady-state power loss to <1% (vs. 5–8% without bypass), saving energy in 24/7 applications (e.g., continuous-duty fans) and reducing thyristor heat generation.
- Comprehensive Protection Suite: Class 10 overload, phase loss, motor stall, and thyristor overheating protection—detects faults in <100ms, preventing motor burnout (e.g., from jams) and soft starter damage (e.g., thyristor overheating).
- Flexible Control Modes: Supports voltage ramp, current limit, and torque control—adapts to diverse loads: current limit for high-inertia loads (e.g., centrifuges), torque control for delicate machinery (e.g., conveyors with fragile products), and soft stop for pumps (avoids water hammer).
- Global Compatibility: 380V~690V AC voltage range and Modbus/Profinet/EtherNet/IP support—suits global industrial grids (e.g., 400V in Europe, 690V in heavy industry) and integrates with most PLC/DCS systems (e.g., ABB AC500, Siemens S7), eliminating gateway needs.
- Industrial-Grade Durability: -10℃~+60℃ operating range, redundant cooling, and IP20/IP54 enclosures—functions reliably in harsh environments (e.g., steel mills, outdoor pump stations) without performance degradation; vibration tolerance prevents accidental faults in machinery-heavy areas.
- Easy Configuration & Monitoring: 7-segment LED display, front-panel keypad, and ABB PST SoftWare—enables on-site parameter adjustment (e.g., startup time, current limit) and remote monitoring (via USB/communication); fault codes simplify troubleshooting (e.g., "F03" for phase loss).
- Energy Efficiency: Reduced inrush current lowers peak power demand—avoids utility demand charges (critical for large facilities) and reduces stress on electrical distribution systems (e.g., transformers, cables).
- Water & Wastewater Utilities: Pump control (avoiding water hammer):
- Centrifugal Pumps: Controls 110kW~132kW water supply/drainage pumps—soft stop mode eliminates water hammer (prevents pipe damage); phase loss protection ensures pump operation during utility phase fluctuations.
- Submersible Pumps: Manages 75kW~110kW submersible wastewater pumps—built-in bypass reduces energy loss in 24/7 operation; motor stall detection prevents burnout from debris jams.
- Manufacturing & Heavy Industry: Fan/compressor control:
- HVAC Fans: Controls 90kW~132kW air handler fans—voltage ramp startup reduces belt/gearbox shock; Modbus integration with BMS enables speed adjustment based on occupancy (saves energy).
- Air Compressors: Manages 110kW~132kW rotary screw compressors—current limit mode controls startup inrush (avoids tripping breakers); overload protection prevents damage from high-pressure stalls.
- Material Handling & Logistics: Conveyor/centrifuge control:
- Heavy Conveyors: Controls 75kW~110kW conveyor motors (e.g., for mining/steel)—torque control ensures smooth startup with heavy loads (avoids product spillage); emergency stop integration via digital inputs enhances safety.
- Centrifuges: Manages 90kW~132kW high-inertia centrifuges (e.g., for chemical separation)—current limit mode prevents inrush-related breaker trips; soft startup reduces rotor stress (extends centrifuge lifespan).
- Food & Beverage Processing: Gentle machinery control:
- Mixers & Blenders: Controls 55kW~90kW industrial mixers—torque control ensures gentle startup (avoids splashing fragile ingredients); thyristor overheating protection prevents faults in warm processing environments.
- Refrigeration Compressors: Manages 75kW~110kW chiller compressors—soft startup reduces stress on refrigerant lines; bypass contactor cuts energy loss in 24/7 cooling systems (lowers utility bills).
- Motor Compatibility (Critical): Ensure the soft starter’s current/power range matches the motor (250A/132kW at 400V, 132A/200kW at 690V)—overloading causes thyristor overheating; use ABB’s motor-soft starter sizing tool to verify (consider motor starting current and inertia). Do not use for DC motors or synchronous motors (AC induction-only design).
- Installation & Wiring Safety:
- Power Wiring: Use copper conductors rated for 90℃ (minimum 50mm² for 250A) and torque terminals to 30Nm (M10 screws)—loose connections cause arcing/overheating; separate power and control wiring (min 100mm spacing) to avoid EMC interference.
- Cooling Requirements: Maintain minimum 100mm clearance around the soft starter for airflow—blocked cooling causes thyristor overheating (fault code "F06"); clean fans/heat sinks quarterly (more frequently in dusty environments, e.g., cement plants).
- Grounding: Connect the PE terminal to a dedicated safety ground (resistance ≤0.5Ω) using 70mm² copper cable—ungrounded installations increase shock risk and EMC interference.
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