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LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 3–19
LM10 Motor Protection System
Chapter 3: Interface
GE Consumer & Industrial
Multilin
Inter face
3.1 PDU Operations
3.1.1 Liquid Crystal Display
The liquid crystal display is a 5 × 8 font pixelized character type in a 16-character by 4-line
format. A yellow-green background offers good readability under direct sunlight and
normal room lighting. The display is reflective, not backlit. Display messages can be
changed to Spanish.
3.1.2 LEDs
A green LED power indicator and a flashing red LED fault indicator is provided. The green
power indicator flashes when in the Configuration mode, and the flashing red LED
indicates a trip condition.
3.1.3 Keypad
The keypad consists of seven buttons used to view and select menu items displayed on the
LCD. The keypad is for program changes and data display. With the exception of testing,
the PDU is not a control keypad.
• Up and down arrows: At the main configuration screen, the up and down arrows
control the LCD contrast level. At all other screens, they are used to scroll through a list
or increase/decrease selected values.
• Enter: At the main configuration screen, pressing the Enter button toggles the LCD
display from English to Spanish. Pressing again will return the display to English. The
Enter button is used to make a selection.
• History: Pressing the History button displays the last ten (10) fault history records.
Each history record contains a snapshot of conditions when the unit last faulted. The
following items are displayed: fault type, phase currents, ground current, voltage,