ABB REM545BM222BAAA Rotating Machine Protection Terminal

Description

Technical Specifications

• Product Type
  • Digital Machine Protection Terminal / Bay Controller
• Auxiliary Power Supply
  • 110 – 240 V AC/DC (±15% tolerance), 50/60 Hz
• Analog Input Interface
  • Current Inputs: 3-phase, 1 residual, 1 sensitive earth fault (SEF); configurable for 1 A or 5 A nominal
  • Voltage Inputs: 3-phase, 1 residual voltage
  • Temperature Inputs (Optional): Support for RTD (Pt100) sensors for stator, bearing, and ambient temperature monitoring
• Binary Inputs/Outputs
  • Binary Inputs: 24 optically isolated, programmable digital inputs
  • Binary Outputs: 16 change-over relay outputs with high breaking capacity
• Communication Interfaces
  • Serial: RS-485 port supporting SPA bus, LON bus, Modbus RTU
  • Ethernet: Optional via communication adapter (SPA-ZC 400) for IEC 61850 protocolABB Group
  • Local: Front USB port for PC connection and configuration
• Physical Characteristics
  • Dimensions: Standard 19-inch rack mountable, compact industrial chassis
  • Display: Large graphical LCD with backlight, integrated LED status indicators
  • Weight: 7.7 kg
  • Protection Class: IP20 (front and rear)
• Environmental Ratings
  • Operating Temperature: -25 °C to +70 °C
  • Storage Temperature: -40 °C to +85 °C
  • Humidity: 5 – 95% RH (non-condensing)
  • EMC Compliance: IEC 60255-6, EN 55011
• Certifications
  • CE, UL, IEC 60255, IEC 61850-3, Marine Type ApprovalsABB Group
  • SIL 3 Certification (IEC 61508) for safety-critical applications

Key Features

• Comprehensive Machine Protection Suite
  • Provides multi-stage directional/non-directional overcurrent and earth-fault protectioneero.
  • Includes differential protection for stator windings with multiple operating principleseero.
  • Offers specialized generator protection: over/underexcitation, over/undervoltage, over/underfrequency, reverse power (motoring), and loss of excitationABB Group.
  • Delivers advanced motor protection: stall, thermal overload, phase imbalance, short-circuit, and start-up supervision with a cumulative start counterABB Group.
  • Integrates sensitive earth-fault, over-temperature, and under-impedance protection functions.
• Embedded Programmable Logic (PLC)
  • Features a built-in IEC 61131-3 compliant PLC engine for custom control logic.
  • Executes complex automation sequences, interlocking, and process control without external hardwareeero.
  • Supports local/remote control logic and machine sequence management.
• High-Precision Measurement & Monitoring
  • Measures phase currents/voltages, power, energy, power factor, and frequency with high accuracy.
  • Performs continuous stator and bearing temperature monitoring via RTD inputs.
  • Records disturbance data (COMTRADE) and 1000+ time-stamped events (SOE) for diagnostics.
  • Conducts real-time self-supervision and internal fault detection for high availability.
• Robust Communication & Integration
  • Supports standard protocols (SPA, LON, Modbus) for seamless SCADA integration.
  • Enables IEC 61850 communication via optional adapter for digital substation interoperabilityABB Group.
  • Facilitates remote configuration, monitoring, and firmware updates.
  • Allows peer-to-peer communication between terminals via LON bus to reduce hardwiringeero.
• Operational Flexibility & Safety
  • Provides local HMI control and remote access for full operation.
  • Offers multiple setting groups for adaptable operation under varying load conditions.
  • Implements circuit breaker failure protection and trip circuit supervision.
  • Designed for easy installation and retrofitting into existing control systems.

Application Scenarios

• Power Generation Plants
  • Primary protection and control for hydro, diesel, and steam turbine generatorseero.
  • Complete protection for generator-transformer units (GTUs) in small to medium-sized power plantseero.
  • Grid interconnection protection with synchronism check and voltage/reactive power control.
• Large Medium-Voltage Motors
  • Protection for critical synchronous and asynchronous motors (pumps, fans, mills, crushers)eero.
  • Motor start-up supervision and stall prevention in heavy industrial processesABB Group.
• Oil, Gas, and Petrochemical Facilities
  • Reliable machine protection in refineries, offshore platforms, and pipeline pumping stations.
  • Safety instrumented functions (SIF) compliant with SIL 3 for emergency shutdown (ESD) systems.
• Marine and Offshore Installations
  • Compact, marine-certified protection for shipboard generators and propulsion motorsABB Group.
  • Robust operation in harsh, high-humidity, and vibration-prone marine environmentsABB Group.
• Industrial Manufacturing
  • Protection for large motors in cement, mining, metal, and water treatment plantseero.
  • Integrated control and protection for critical process machinery to ensure production continuity.
• Utility and Industrial Substations
  • Acts as a bay controller for machine feeders, enabling smart grid automation and condition-based maintenance.