Heidenhain ND 522 User Manual download pdf (Page 18)

18 I Operating Instructions

I - 2 General Operations for ND 522/523

General Navigation

 Use keypad to enter numeric values within each field.

 The Enter key will confirm the entry within a field, and return to the

previous screen.

 Press the C key to clear entries, and error messages, or return back

to the previous screen.

 SOFT KEY labels show the various milling, or turning functions.

These functions are selected by pressing the corresponding soft key

directly below each soft key label. There are 2 pages of selectable

soft key functions. These are accessed using the LEFT/RIGHT

ARROW keys.

 The LEFT/RIGHT ARROW keys move through pages 1, and 2 of the

soft key selectable functions. The current page will be highlighted in

the Status bar at the top of screen.

 Use the UP/DOWN ARROW keys to move between fields within a

form, and list boxes within a menu. The orientation of the cursor is

such that it will return to the top once it has reached the bottom of

the menu.

Operating Modes

The ND 522/523 has two operating modes: Distance-To-Go

(incremental), and Actual Value (absolute). The Distance-To-Go

feature (which will be referred to as incremental in this manual)

enables approach to nominal positions by traversing to display value

zero. When working within the incremental mode either enter nominal

coordinates as either incremental, or absolute dimensions. The Actual

Value feature (which will be referred to as absolute in this manual)

always displays the current actual position of the tool, relative to the

active datum. In this mode, all moves are done by traveling until the

display matches the nominal position that is required.

While in the Absolute Mode, if the ND 522/523 is configured for

Milling applications, only the tool length offsets are active. Both the

radius, and length offsets are used in the Distance-To-Go mode to

calculate the amount of “distance-to-go” required to get to the desired

nominal position relative to the edge of the tool that will be doing the

cutting.

If the ND 522/523 is configured for a lathe, all tool offsets are used in

both the Incremental, and Absolute modes.

Press the INCREMENTAL / ABSOLUTE hard key to toggle between

these two modes. To view soft key functions in either Incremental, or

Absolute mode, use the LEFT / RIGHT ARROW keys.

The turning application provides a quick method for coupling the

Z axes position on a 3 axis system. See "Enabling Z Coupling" on page

67.

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Heidenhain ND 522 User Manual Page 18

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