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L100 Inverter
Inverter Mounting
and Installation
2–19
Using the Front Panel Keypad
Front Panel Introduction
Please take a moment to familiarize yourself with the keypad layout shown in the figure
below. These are the visible controls and indicators when the front panel door is closed.
The display is used in programming the inverter’s parameters, as well as monitoring
specific parameter values during operation. Many functions are applicable only during
the initial installation, while others are more useful for maintenance or monitoring.
Parameter Editing Controls
Now, open the front panel (half-door) for second-level access to reveal additional
operator keys for parameter editing as shown below. In normal operation after installa-
tion, parameter editing is unnecessary, so these controls are hidden from view.
The front panel controls and indicators are described as follows:
• Run/Stop LED - On when the inverter output is running the motor (Run Mode), and
Off when the inverter output is Off (Stop Mode).
• Program/Monitor LED - This LED is On when the inverter is ready for parameter
editing (Program Mode). It is Off when the parameter display is monitoring data
(Monitor Mode).
• Run Enable LED - is On when the inverter is ready to respond to the Run command,
Off when the Run command is disabled.
• Run Key - Press this key to run the motor (the Run Enable LED must be On first).
• Stop/Reset Key - Press this key to stop the motor when it is running (uses the
programmed deceleration rate). This key will also reset an alarm which has tripped.
• Potentiometer - allows an operator to enter data for selecting a scalar value from a
range, associated with the inverter output frequency.
• Potentiometer Enable LED - On when the potentiometer is enabled for value entry.
• Parameter Display - a 4-digit, 7-segment display for parameters and function codes.
• Display Units, Hertz/Amperes - One of these LEDs will be On to indicate the units
associated with the parameter display.
• Power LED - This LED is On when the power input to the inverter is on.
050
Hz
POWER
A
RUN
PRG
RUN
STOP
STOPSTOP
STOP
RESET
MIN
MAX
HITACHI
Run Enable LED
Run Button
Program/Monitor LED
Run/Stop LED
Stop/Reset Button
Potentiometer
Potentiometer Enable LED
Display Units
Power LED
Hertz / Amperes LEDs
Parameter Display
Technologies Inc.
Toll Free: voice: 1-877-539-2542 fax: 1-800-539-2542 www.mgitech.com