CHAPTER 1: INTRODUCTION OVERVIEW
MM300 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 1–3
For Further Assistance
For product support, contact the information and call center as follows:
GE Grid Solutions
650 Markland Street
Markham, Ontario
Canada L6C 0M1
Worldwide telephone: +1 905 927 7070
Europe/Middle East/Africa telephone: +34 94 485 88 54
North America toll-free: 1 800 547 8629
Fax: +1 905 927 5098
Worldwide e-mail: multilin.tech@ge.com
Europe e-mail: multilin.tech.euro@ge.com
Website: http://www.gegridsolutions.com/multilin
Description of the MM300 Motor Management system
The MM300 can be equipped with either of two control panels, or with no control panel.
• Basic control panel: includes pushbuttons for Stop, Start A, Start B, Auto, Manual, and
Reset, and 12 LED status indicators.
• Graphical control panel: includes a 3.5-inch 320 by 240 pixel backlit color LCD screen,
14 pushbuttons and 10 LED indicators, which provide access to actual values, trip and
alarm lists, event records, and setting configuration. A USB port is provided for laptop
computer connection.
The MM300 includes the following input/output capabilities:
• 2 to 18 contact outputs
• 6 to 30 contact inputs
The following additional functions are available:
• Ten process interlocks configurable for trip, stop, or alarm.
• Passcode for up to three security levels.
• Six pre-defined starter types.
• Start inhibits.
• Time between starts.
•Restart block timer.
• Starts per hour.
• Optional undervoltage restart.
The thermal model uses a standard overload curve with multiplier, and incorporates hot/
cold biasing, unbalance biasing, RTD biasing, and exponential cooling.
A single-line diagram for the MM300 is shown below.
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