HEIDENHAIN IOB 49 User Manual

User’s Manual

IOB 49

English (en)
3/2007

I Operating Instructions ..... 5

I General Information ..... 6

Connecting the IOB 49 to X10 for executing switching functions (milling) or controlling the constant surface speed

CSS (turning) ..... 6

I – 1 Execution of Switching Functions ..... 7

Switching inputs ..... 7

Switching outputs ..... 7

I – 2 Controlling the Constant Surface Speed (CSS) ..... 10

Configuration of CSS ..... 11

CSS operating mode ..... 12

Activating the DAC output ..... 13

Connecting the IOB to the inverter of the lathe ..... 14

I – 3 Diagnostics ..... 15

Switching I/O functions ..... 15

CSS ..... 16

HEIDENHAIN IOB 49 3

Operating Instructions

HEIDENHAIN IOB 49 5

General Information

Connecting the IOB 49 to X10 for executing switching functions (milling) or controlling the constant surface speed CSS (turning)

When the IOB 49 is connected to the ND 780, the functionalities
described above are available.

For information on the installation of the IOB 49 in an electrical cabinet,
the connection technology and the wiring, please refer to the
Operating Instructions. The Operating Instructions are included with
every position display unit, or can be requested from HEIDENHAIN.

General Information

The position display unit automatically recognizes when an IOB 49 is
connected and displays the CSS SETUP option or the SWITCHING
OUTPUTS option in the INSTALLATION SETUP menu. These options
can be used to configure all functions of the switching unit.

6 I Operating Instructions

I – 1 Execution of Switching

Functions

Switching functions can only be executed when the position display
unit is configured for milling applications.

If you want to use both the IOB 49 and the KT 130 edge finder at the
same time or if you want to transmit measured values via the external
switching output, the distribution cable with ID 532 909-01 is required.

Switching inputs

The IOB 49 provides three inputs that are used to zero the actual value
of the assigned axis. A low-to-high transition at the input causes the
value for that axis to be set to zero.

Switching outputs

The switching outputs consist of eight (integrated) relays that are
activated depending on the position. The relays can be configured to
activate when a position display reaches a specific value or within a
specified range of zero. The ninth output relay indicates readiness.

Select SWITCHING OUTPUTS from the INSTALLATION SETUP menu
to open the SWITCHING OUTPUTS table in which the configuration of
the eight outputs is stored. If you want to change the configuration of
an output, select it with the arrow keys and press ENTER to confirm
your selection. This opens the OUTPUT SETTINGS form in which you
define the switching conditions. To reset a relay, select the relay in the
table and press the CLEAR RELAY soft key.

I – 1 Execution of Switching Functions

Fig. I.1

HEIDENHAIN IOB 49 7