HEIDENHAIN iTNC 530 HSCI Technical Manual page 1503

Hide thumbs Also See for iTNC 530 HSCI:

Table of Contents

Traverse distance per

revolution [mm]

MP7674.x can always be used to set a minimum axis-specific subdivision

factor for the HR 130, HR 330, and HR 332. It can be used for the HR 410 if

MP7641 bit 1 is not set (without detent encoder).

You can choose a larger input step for the traverse distance per rotation than

that calculated by the NC:

In MP7670.x, enter a subdivision factor.

In MP7645.x, enter an initialization parameter for the handwheel.

The two machine parameters are evaluated by the HRA 110 or HR 410, but

not by the HR 420 or HR 5xx.

MP7675.x has no meaning for the HR 130, HR 330, or HR 332. If MP7641 bit

1 is set (with detent encoder) for the HR 4xx or HR 5xx , then a maximum

distance in [mm] per detent can be entered for each axis. If MP7641 bit 1 is

not set (without detent encoder) for the HR 420 or HR 5xx, then a maximum

distance in [mm] per handwheel revolution can be entered for each axis.

These limitations serve to prevent the movement monitoring from becoming

active because of abrupt motions when a large gear ratio is in effect on

handwheels for axes with poor dynamics.

The VT axis (Virtual Tool Axis) can now be activated for handwheel

superimposition in the active tool-axis direction by setting bit 4 of MP7641.

If bit 5 of MP7641 is set, the keys of the HR 420 or HR 5xx (PLC markers 4661

to 4668) are reported to the PLC even if the HR is not active. This enables the

PLC to make the keys of the HR 420 or HR 5xx (e.g. NC stop, spindle stop)

become effective even if the handwheel is not selected.

Bit 6 of MP7641 is used to enable traversing of auxiliary axes with the HR 420

or HR 5xx. This makes it possible to select axes that are indicated with

lowercase letters in MP100 in the operator menu of the HR 420 or HR 5xx

handwheel, and to move them with the handwheel.

With the standard settings, the vertical soft keys (PLC soft keys) cannot be

used on the machine side while the HR 420 or HR 5xx handwheel is active.

These soft keys can only be used if bit 9 is set in MP7641.

MP7641 bit 9 may only be set if the vertical soft keys (PLC soft keys) do not

have any functions that could pose danger to the operator (e.g. starting an

axis movement or a spindle movement).

8.8 Electronic handwheel

Effective beginning from

rapid traverse: MP1010.x