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Motorola MVME-2400
Motorola MVME-2400

GE MM2-PD-1-2-120

Product Overview

The MM2-PD-1-2-120 is a microprocessor-based intelligent motor management system from GE Multilin’s Motor Manager 2 (MM2) series, engineered for real-time protection, control, and monitoring of industrial motors in motor control centers (MCCs) and panel-mount applications. It integrates process control (10 process inputs, undervoltage autorestart) and enhanced protection (power measurement, thermistor monitoring, 2nd contactor control, 2 process inputs) in a single device, with a 120V AC control voltage for global compatibility. The unit features a full-faceplate LCD display for real-time visualization of phase/ground current, thermal capacity, power, and energy, and supports Modbus RTU communication for SCADA integration.
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Description

Technical Specifications

Parameter Details
Model Number MM2-PD-1-2-120 (MMII-PD-1-2-120)
Manufacturer GE Multilin (GE Vernova)
Product Line Multilin Motor Manager 2 (MM2)
Mounting Style Panel Mount (PD) with Full-Faceplate LCD Display
Option 1 (Process Control) 10 Process Inputs, Undervoltage Autorestart, Advanced Diagnostics
Option 2 (Enhanced Protection) Power (kW) Measurement, Thermistor Monitoring, 2nd Contactor Control, 2 Process Inputs
Control Voltage 120V AC, 50/60Hz
Current Inputs (CT) 5A Nominal (0.5–12A Range), 3-Phase + Neutral
Voltage Inputs (VT) 120V Phase-Neutral (Configurable for 208/240V Systems)
Digital Inputs 6 Fixed (Start/Stop, Reset, Emergency Stop)+10 Programmable
Analog Inputs 4–20 mA (10 Process Inputs from Option 1, 2 from Option 2)
Outputs 2 Contactor Outputs (25A @ 240V AC), 2 Programmable Relay Outputs (SPDT, 5A @ 250V AC)
Communication RS485 Modbus RTU (1,200–19,200 Baud), EnerVista MMII Software
Display LCD with Keypad (Phase/Ground Current, Thermal Capacity, Power, Energy)
Operating Temperature 0°C to 60°C
Storage Temperature -20°C to 70°C
Dimensions 7.4″ L × 4.4″ H × 5″ W (188mm × 112mm × 127mm)
Weight 3 lbs (1.36 kg)
Protection Functions Overload (49), Phase Unbalance (46), Locked Rotor (48), Undervoltage (27), Overvoltage (59), Thermistor (49T), Ground Fault (50N)
Certifications UL 508, CSA C22.2 No. 14, IEC 60947-4-1

Function Features

  • Integrated Process & Protection: Combines 10 process inputs (Option 1) and enhanced protection (kW measurement, thermistor monitoring, 2nd contactor control, 2 process inputs) for comprehensive motor management.
  • Undervoltage Autorestart: Automatically restarts motors after voltage recovery, reducing manual intervention and downtime.
  • Thermistor Monitoring: Hot winding thermistor circuit detects overheating and triggers pre-trip alarms or shutdown to prevent thermal damage.
  • Dual Contactor Control: Supports two contactors for main and auxiliary motor circuits, enabling soft start and redundant control logic.
  • Real-Time Display: LCD shows phase/ground current, thermal capacity, power, energy, and fault codes for instant diagnostics.
  • Modbus Communication: RS485 Modbus RTU (1,200–19,200 Baud) enables seamless integration with SCADA/DCS systems for remote monitoring.
  • Flexible I/O Configuration: 6 fixed + 10 programmable digital inputs, 2 contactor outputs, and 2 relay outputs for custom control and alarm logic.
  • EnerVista Integration: EnerVista MMII software for remote configuration, event logging, and predictive maintenance analysis.
  • Trip & Pre-Trip Data Logging: Records pre-trip/post-trip values for root-cause analysis and proactive maintenance scheduling.
  • Panel-Mount Design: Full-faceplate LCD with keypad simplifies installation in MCCs and control panels, with IP20 front protection.
  • Wide Temperature Operation: 0°C to 60°C range ensures reliable performance in harsh industrial environments.
  • Advanced Protection Suite: Overload, phase unbalance, locked rotor, under/overvoltage, ground fault, and thermistor protection prevent motor damage.

Application Scenarios

  • Motor Control Centers (MCCs): Primary protection and control for motors in industrial MCCs, integrating with existing control systems.
  • Manufacturing Plants: Protects and monitors motors in pumps, fans, compressors, and conveyors in automotive, oil & gas, and chemical facilities.
  • Water & Wastewater Treatment: Controls and protects pump motors, ensuring continuous operation and preventing downtime in critical infrastructure.
  • Mining & Minerals: Withstands dust, vibration, and temperature fluctuations to protect motors in crushers, mills, and material-handling equipment.
  • HVAC Systems: Manages fan and pump motors in commercial buildings and industrial facilities, optimizing energy efficiency and reliability.
  • Power Generation: Protects auxiliary motors in power plants (boiler feed pumps, cooling fans) with advanced diagnostics and undervoltage autorestart.
  • Food & Beverage: Ensures motor reliability in processing lines, reducing production interruptions and maintaining compliance with safety standards.
  • Retrofit Projects: Direct replacement for legacy electromechanical motor protectors, enhancing protection and control without system reconfiguration.

Compatibility and Integration

  • MM2 Ecosystem: Fully compatible with GE Multilin MM2 accessories, including communication modules (RS485 Modbus RTU), I/O expansion cards, and mounting hardware.
  • Communication Protocols: Modbus RTU over RS485 (1,200–19,200 Baud) for SCADA/DCS integration; supports master/slave configuration for multi-unit networks.
  • Configuration Software: EnerVista MMII software for remote setup, firmware updates, event log download, and predictive maintenance analysis.
  • Motor Control Integration: Works with contactors, soft starters, and variable frequency drives (VFDs) for seamless motor control and protection.
  • Panel Mount Compatibility: Fits standard control panels and MCCs with dimensions 7.4″ L × 4.4″ H × 5″ W (188mm × 112mm × 127mm).
  • Standards Compliance: UL 508, CSA C22.2 No. 14, and IEC 60947-4-1 ensure global compatibility and industrial reliability.
  • Documentation: Detailed guidelines in the GE Multilin MM2 User Manual and EnerVista MMII Software Guide, including wiring diagrams, protection setting examples, and communication configuration steps.
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