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Description
Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | 3UF5011-3AB00-1 |
| Manufacturer | Siemens AG |
| Product Type | SIMOCODE-DP Basic Unit (Motor Management & Protection Device) |
| Communication Protocol | PROFIBUS-DP (IEC 61158-2) |
| Data Transfer Rate | 1.5 Mbaud |
| Bus Interface | RS485, 9-pole SUB-D Socket |
| Control Supply Voltage | 24 V DC (20.4 – 28.8 V DC) |
| Digital Inputs | 4 Opto-coupler Inputs, 24 V DC Internally Supplied |
| Relay Outputs | 4 Monostable Relay Outputs, Freely Parameterizable |
| Thermistor Input | Yes, for PTC Thermistor Motor Protection |
| Earth Fault Detection | Via Summation Current Transformer (Optional) |
| Current Setting Range | 6.3 A (Initial) to 25 A (Final) – Adjustable Overload Release |
| Main Circuit Voltage | 110 – 690 V AC, 50/60 Hz |
| Rated Current Range | 25 … 100 A (Dependent on Configuration) |
| Protection Functions | Overload (Class 10A/10/20/30), Phase Loss, Phase Unbalance, Locked Rotor, Earth Fault, Undercurrent/Overcurrent, Startup Timeout |
| Control Functions | Direct Start, Reversing, Star-Delta (Y-Δ) Start |
| Relay Behavior | Monostable (Single-stable) |
| Degree of Protection | IP20 (Control Cabinet Installation) |
| Mounting | 35 mm DIN Rail (EN 60715) |
| Dimensions (W × H × D) | 70 mm × 85 mm × 132.5 mm |
| Net Weight | 0.773 kg |
| Operating Temperature | −25 °C to +60 °C |
| Storage Temperature | −40 °C to +70 °C |
| Standards Compliance | IEC 60947-4-1, IEC 60255, UL, cUL, CE |
| Engineering Software | SIMOCODE ES in TIA Portal / STEP 7 |
| Typical Power Consumption | Approx. 2.5 W (Basic Unit, Excluding Expansion Modules) |
| Lifecycle Status | PM490 – Product Discontinuation (Legacy, Still Widely Deployed) |
Main Features and Advantages
Comprehensive Motor Protection SuiteThe Siemens 3UF5011-3AB00-1 delivers multi-layered motor protection through current-dependent monitoring, thermistor-based thermal protection, and blocking protection. Overload protection follows adjustable trip classes (Class 10A, 10, 20, 30), while phase loss, phase unbalance, locked rotor, earth fault, undercurrent, overcurrent, and startup timeout detection are all available through parameterization. This holistic approach ensures that the Siemens 3UF5011-3AB00-1 detects irregularities in operating behavior early—long before they escalate into catastrophic motor failures.Intelligent Communication and DiagnosticsEquipped with a PROFIBUS-DP interface operating at 1.5 Mbaud, the Siemens 3UF5011-3AB00-1 seamlessly integrates with Siemens S7 PLCs and higher-level DCS/SCADA systems. Once the GSD file is imported into STEP 7, PCS 7, or TIA Portal, the module immediately becomes a transparent node on the network, streaming real-time operating data, energy values, fault codes, and diagnostic information. An onboard diagnostic buffer stores the last several dozen fault records, enabling maintenance teams to perform root-cause analysis without guesswork.Flexible Input/Output ConfigurationWith 4 digital inputs and 4 relay outputs, the Siemens 3UF5011-3AB00-1 offers remarkable flexibility. Inputs can be wired to START/STOP pushbuttons, emergency stop circuits, or external sensors, with configurable debounce times for interference immunity. The 4 monostable relay outputs can be assigned to operate contactors, indicator lamps, alarm annunciators, or auxiliary control devices. Each I/O point is freely parameterizable via SIMOCODE ES engineering software, allowing the Siemens 3UF5011-3AB00-1 to adapt to virtually any motor control scenario.Built-in Control Logic and Standard Function BlocksBeyond simple I/O, the Siemens 3UF5011-3AB00-1 incorporates powerful onboard logic processing. Standard function blocks—including truth tables, timers, counters, flicker/flash generators, check-back signal test (CST), operating protection off (OPO), ready-to-start (RTS), undervoltage off (UVO), external fault handling, and emergency start—enable complex control strategies without burdening the higher-level PLC. This distributed intelligence significantly reduces PLC scan time and network traffic while improving response speed.Thermistor and Earth Fault MonitoringThe Siemens 3UF5011-3AB00-1 accepts direct connection of a PTC thermistor detector circuit for motor winding temperature protection—a critical safeguard against thermal overload that pure current-based protection cannot detect. Additionally, an optional summation current transformer input enables sensitive earth fault detection, further enhancing personnel safety and equipment protection.Modular Expansion ArchitectureWhile the Siemens 3UF5011-3AB00-1 is a complete motor management solution in itself, it supports modular expansion via the RS232 system interface. Additional expansion modules can add analog inputs/outputs, enhanced measurement capabilities, and supplementary I/O, allowing the Siemens 3UF5011-3AB00-1 to scale precisely to application requirements. This “basic unit + expansion” philosophy delivers cost-optimized solutions for entry-level applications while preserving an upgrade path to advanced configurations.Rugged Industrial DesignHoused in a compact 70 mm wide enclosure weighing just 0.773 kg, the Siemens 3UF5011-3AB00-1 mounts on standard 35 mm DIN rail and operates reliably from −25 °C to +60 °C. IP20 protection ensures safe installation within control cabinets, while full compliance with IEC 60947-4-1, UL, cUL, and CE standards guarantees global acceptability. The monostable relay outputs provide predictable, fail-safe behavior during control voltage loss.
