Potentiometer – Allows an operator to directly set the motor speed when the potentiometer is enabled for output frequency control.

Potentiometer Enable LED – ON when the potentiometer is enabled for value entry.

Parameter Display – A 4-digit, 7-segment display for parame- ters 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 – ON when the power input to the inverter is ON.

Function Key – This key is used to navigate through the lists of parameters and functions for setting and monitoring parameter values.

Up/Down Keys – Use these keys alternately to move up or down the lists of parameter and functions shown in the display, and to increment/decrement values.

Store Key – When the unit is in Program Mode and the operator has edited a parameter value, press the Store key to write the new value to the EEPROM.

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Hitachi NB5741XD manual