ACU-RITE CSS I/O User Manual

User’s Manual

CSS I/O

English (en)
2/2010

A

®

CU-RITE

I General Information ..... 4

Connecting the CSS I/O to X101 (turning) ..... 4

I - 1 Execution of Switching Functions ..... 5

Switching inputs ..... 5

Switching outputs ..... 5

I - 2 Spindle Speed Control (RPM) ..... 8

Milling Systems ..... 8

Display ..... 8

Mill Spindle Installation setup ..... 9

Voltage Offset / RPM Source ..... 10

Voltage / RPM Setup ..... 11

Operation / Job Execution ..... 12

Mill Spindle Feature Run ..... 13

Mill Spindle Program Run ..... 13

I - 3 Controlling the Constant Surface Speed (CSS) ..... 14

Configuration of CSS ..... 15

CSS operating mode ..... 16

Activating the DAC output ..... 17

Connecting the CSS I/O to the inverter of the lathe ..... 18

I - 4 Diagnostics ..... 19

General Information ..... 19

Switching I/O functions ..... 19

CSS, and Mill Spindle ..... 20

CSS I/O 1

2

Operating Instructions

CSS I/O 3

General Information

Connecting the CSS I/O to X101 for executing switching functions (milling) or controlling the constant surface speed CSS (turning)

When the CSS I/O is connected to DRO’s that support this feature, the
functionality described above are available. Contact an authorized
Acu-Rite product distributor for more information.

The DRO automatically recognizes when the CSS I/O 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.

General Information

4 I Operating Instructions

I - 1 Execution of Switching

Functions

If you want to use both the CSS I/O 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 593761-01 is required.

Switching inputs

The CSS I/O provides four 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 integrated relays available for generic
usage. The number of switching outputs available is dependent on the
configuration options chosen. When the system is configured for a
Mill, and the spindle speed control (RPM) is disabled, 8 switching
outputs are available. If RPM is enabled, then only 5 switching outputs
are available. See "Spindle Speed Control (RPM)" on page 8.

When the system is configured for a Lathe, and the constant surface
speed (CSS) is disabled, 8 switching outputs are available. If CSS is
enabled, then only 5 switching outputs are available. See "Controlling
the Constant Surface Speed (CSS)" on page 14.

I - 1 Execution of Switching Functions

The switching outputs are activated depending on “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 outputs are 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, followed by the YES soft
key for confirmation.

CSS I/O 5

8 The CONDITION field is used to assign an axis to the output and to

specify whether the axis position is an actual-value or distance-to-go
position. You also specify the position display value at which the
relay is activated, and the required condition.

8 The POINT/RANGE field is used to define whether the conditions

refers to a point on the axis or refers to a range about zero.

8 The OUTPUT field is used to specify the relay operation when the

switching condition is met. When the condition is met, the relay is
turned OFF or ON.

If the condition is set to equal, the relay will activate
momentarily even if the switching point is crossed over too
quickly for the value to appear.

Possible switching states of the relays.

I - 1 Execution of Switching Functions

6 I Operating Instructions

In PULSED mode, the relay is activated (ON or OFF) for a specific
period of time. After the period has timed out, the relay is deactivated.
The pulse time is 0.1 to 999 seconds.

Continuous mode shown:

The time period begins whenever the switching condition
transitions from FALSE to TRUE. If the switching conditions
transitions to TRUE before the period has timed out, the
timer will start over.

The switching functions cannot be used for coupled axes or
for axes with backlash compensation.

Relay

Condition

Pulsed mode shown:

Relay

Condition

I - 1 Execution of Switching Functions

CSS I/O 7