Perfect Harmony GENIII/e User’s Manual The Keypad and Display Interface
A1A19000405A: Version 1.3 3-1
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3.1 Introduction
The menu system is the software program that allows operators to navigate through hierarchical structures (menus),
which contain related menu items. Menu items include parameters, pick lists, functions, and submenus (“nested”
menus). These menu items allow the operator to configure a drive to his particular needs.
It is important to understand the mechanism through which the menu system operates. This mechanism is the front
panel keypad and display interface. The display interface is a 24-by-2 character back-lit LCD. The keypad provides
numerical keys for entering data and arrow keys for scrolling through the menu structure of the Perfect Harmony
drive.
The keypad has built-in keys for fault reset, auto mode, manual start, and manual stop functions. Three diagnostic
LEDs (power on, fault, and run) are built into the standard keypad.
Normally, the keypad and display interface is mounted permanently to the drive. However, the keypad/display
module need not be mounted for normal operation. With power removed, the keypad/display can be plugged in as an
external module for set-up and diagnostic purposes only. Thus, one may use it to provide extra parameter security.
The Perfect Harmony system provides a fully programmable, multi-level security system that assures menu access
and modification capabilities by authorized personnel only.
3.2 The Keypad
The Perfect Harmony series contains a user-friendly keypad and display interface. This keypad/display interface is
located on the front of the Perfect Harmony Drive Control Cabinet. The Keypad and Display Interface is illustrated in
Figure
3-1.
The Keypad and Display Interface is used to access the control parameters and functions of the Perfect Harmony
drive. Parameters are organized into logical groups using a menu structure.
To view or edit parameters, the operator must maneuver through the menu structure to the desired parameters. This is
accomplished using special key sequences. A summary of these key sequences is given later in this chapter.
The [SHIFT] key (which is used in conjunction with the 10 numeric keys and the [ENTER] key) is provided to access
nine common system menus, a help display function, and a [CANCEL] key. The keypad is used to navigate through
the menu system, activate control functions, reset the system after faults have occurred, edit parameter values, enter
security access codes, and place the system in either automatic, manual, or stop (auto/hand/off) mode.
CHAPTER
3
The Keypad and Display Interface
WARNING: Do not remove or attach the keypad while the drive is powered.
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