Applications

• Low Voltage three phase AC motors
• IEC or NEMA class motors
• MCC or stand alone panel mount applications
• Reversing and Reduced Voltage applications
• Motor applications requiring advanced Automation or Control
  (e.g. conveyor systems or well recovery pumps)

Features and Benefits

• Full-featured protection for low voltage AC motors
• Advanced automation capabilities provide customized protection & integrated process control
• Advanced FlexLogic™ reduces requirement for local PLC's
• Reduced installation space requirements through integration of multiple devices including protection, control functions, pushbuttons, status LEDs and communication interfaces
• Application flexibility with multiple I/O options and programmable logic options (FlexLogic™)
• Enhanced troubleshooting tools including sequence of event records and waveform capture
• Powerful communications including Serial, Ethernet, Profibus, and DeviceNet protocols
• Small form factor and remote display options designed to fit in MCC buckets

Protection & Control

The MM300 is a digital motor protection and control system, designed for Low Voltage motor applications. Flexible and powerful, the MM300's protection can be scaled to the specific requirements of your system.

• Enhanced Thermal Modeling
• RTD Overtemperature
• Current Unbalance
• Sensitive Ground Fault
• Underpower
• Phase Reversal
• VT Fuse Failure
• Thermistor

Automation

The MM300's powerful I/O and programmable flexlogic options offer advanced automation control, reducing the need for additional programmable controllers or discrete control relays.

• Programmable Flexlogic™ option
• Starter Control
• Process Interlocks
• Undervoltage Auto-restart

Monitoring & Metering

The MM300 includes high accuracy metering for all AC signals. Voltage, current, power metering, and temperature all available options. Current and voltage parameters are available as total RMS magnitude and angle.

• Metering - current, voltage, power, energy, frequency, RTD, Thermistor
• Event Recorder - Up to 256 time tagged events with 1ms resolution
• Advanced device health diagnostics

Communications

The MM300 utilizes the most advanced comm­unications technologies available today making it the easiest and most flexible motor protection relay to use and integrate into new and existing infrastructures. Multiple communication ports and protocols communicate simultaneously, allowing control and easy access to information from the MM300. The following protocols and communication ports are available:

• Fieldbus Protocol with dedicated port.
  - DeviceNet or Profibus DP
• Modbus TCP/IP with RJ45 10/100baseT Ethernet
• Networking Interfaces - 2-Wire RS485, RJ45 Ethernet
• Multiple Protocols (Modbus RTU, Modbus TCP/IP, Profibus DP, DeviceNet)
• Programming Ports - USB, RS485
• Network Time Protocol (when ordered with Ethernet) user Interface

User Interface

The MM300 can be ordered with or without a control panel or display. If local control or monitoring is required, there are two available options:

• Control panel with 12 status LED's, Motor Control and function keys
• Color HMI Display featuring a full color graphical display, Motor and system status LED's, USB programming port and motor control keys

EnerVista™ Software

The EnerVista™ Suite is an industry-leading set of software programs that simplifies every aspect of using the MM300 relay. The EnerVista™ suite provides all the tools to monitor the status of the protected asset, maintain the relay, and integrate information measured by the MM300 into DCS or SCADA monitoring systems.

• State of the art software for configuration and commissioning GE Multilin products
• Graphical Logic Designer and Logic Monitor to simplify designing and testing procedures
• Document and software archiving toolset to ensure reference material and device utilities are up-to-date