ACU-RITE Micro-Line T User Manual

MICRO-LINE

Readout Systems

Precision Glass Scales

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For Turning Applications

REFERENCE MANUAL

TABLE OF CONTENTS

Installation

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Packing List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Warranty Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Installing the Scales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Installing the Readout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Power Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Display Saver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Setup

Parameter Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Display Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Linear Error Compensation. . . . . . . . . . . . . . . . . . . . . . . . . . . 7

How to Determine the Linear Error Compensation . . . . . . . . . 8

Count Direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Testing the Scales. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Operation

Radius and Diameter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Setting the Datum (Absolute Zero) . . . . . . . . . . . . . . . . . . . . . . . . 13

Example: Setting Up Your Job . . . . . . . . . . . . . . . . . . . . . . . . 15

Incremental Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Example: Incremental Dimensions . . . . . . . . . . . . . . . . . . . . . 17

Tool Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2004-721 Ed B

MICRO-LINE Reference Manual i

TABLE OF CONTENTS

Troubleshooting

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Error Messages (General) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Keypad Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Reference

Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Factory Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

DRO Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Count Direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Recalling the Last Datum Setting for International Units . . . . 32

General Installation Instructions for the Scale . . . . . . . . . . . . . . . . 33

Installation Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Mounting Preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Mounting Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Dimensions for Both Scale Types . . . . . . . . . . . . . . . . . . . . . . 37

Mounting Descriptions for Both Scale Types . . . . . . . . . . . . . 38

Installation Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

MICRO-LINE Reference Manualii

I N S TA L L ATION

Overview

This manual will guide you through the installation, setup, and operation of the MICRO-LINE system. Use it to get your system up and running “out of the box” and as a quick reference guide for your day-to-day operations.

We recommend installing the scales first, according to the instructions included with your system. After the scales are in place, install the readout and then finish setting up the system.

Here’s how a typical machine will look after the installation is complete:

MICRO-LINE

Readout

X-axis Scale

Mounting

Arm

MICRO-LINE Reference Manual

Z-axis Scale

INSTALLATION

Preparation

Packing List

Before you begin the installation procedure, check that you have received all of the components for your system:

• Readout & installation instructions

• Mounting arm

• MICRO-LINE scales

- Cable mounting hardware

- Scale mounting hardware

• Warranty card

If a component is missing, contact your MICRO-LINE distributor for

replacement parts.

Warranty Records

For future ordering information or warranty service, please record all readout and scale information on the warranty card included with your

MICRO-LINE system. The scale catalog number and serial number are

located on the scale assembly tag.

Copy the information here for your own records and then mail the warranty card as soon as possible.

Distributor: _____________________________________________ Address: _____________________________________________ Telephone: _____________________________________________

Catalog No. Serial No. Readout ________________ ___________________ Axis #1 ________________ ___________________ Axis #2: ________________ ___________________ Axis #3: ________________ ___________________

Date of Purchase: ____________________________________

MICRO-LINE Reference Manual

INSTALLATION

Installing the Scales

Install the linear encoders according to installation instructions found within your Micro-Line system manual. These general installation instructions are found on page 33. Read these instructions completely even though bracket kit instructions supersede them.

Installing the Readout

Follow the readout installation instructions that are included with your mounting arm bracket kit. The electrical specifications for the readout are listed on pg. 27.

After the installation is complete, proceed to “Power Up.”

MICRO-LINE Reference Manual

INSTALLATION

Power Up

Press the switch on the back of the readout to power up the system. A series of tests will check that the display, keypad, and memory are all working properly.

If a problem is detected, an error code will appear on the screen. (Error messages and solutions are listed on pgs. 25 - 26.) It is important to note that the E1 message will appear every time you power up your system and does not indicate a problem. It merely indicates that the system had lost power. To acknowledge the message, press the CLEAR key and proceed to the DRO mode.

Note: If the E1 message appears at any other time during normal

operation, refer to pg. 25 for possible problems and solutions.

Display Saver

When the system is not used for more than 90 minutes, a decimal point will “scroll” across the X-axis display, indicating that the display saver has been activated. The display saver, like a screen saver on a computer monitor, will help prolong the life of your readout.

If the display saver has been activated, press any key on the readout or move any axis to return to the normal DRO view.

MICRO-LINE Reference Manual

SETUP

Parameter Setup

There are 3 to 4 parameters that you can define on your system:

• Display resolution (diS)

• Linear error compensation (LEC)

• Scale count directions (Ct dir)

• Input 3 ON/OFF for international units

Establish each setting the first time you power up the system. You can change the parameters later by returning to Setup and then using the ENTER key to scroll to the appropriate category.

Anytime you change the linear error compensation, or count direction for an axis, the absolute and incremental displays for that axis will be reset to 0. If you change these settings, you’ll need to reestablish the datum point.

For international units using 5µm (0.0002”) scales with reference marks, you will need to recall Datum. See page 32.

When in the SetUp mode, use the CLEAR key when you want to backspace, restore the previous value or access the previous parameter.

MICRO-LINE Reference Manual

SETUP

Display Resolution

The display resolution determines how detailed each scale’s position will be displayed on the readout. Use the setting that best suits each job.

To change the display resolution:

• Press the SETUP key. (“diS” will show on the display.)

• Press the

For 10µm scales, the display resolution will toggle between 0.01 mm (0.0005”) and 0.02 mm (0.001”). For 5µm scales, it will toggle

between 0.005 mm (0.0002”) and 0.01 mm (0.0005”).

• After you complete setting your display resolution, press ENTER to continue with setup or press ENTER then SETUP to return to the normal DRO display.

X or Z key for the display you want to change.

MICRO-LINE Reference Manual

SETUP

Linear Error Compensation

With MICRO-LINE, you can compensate for machine tool wear. If you know the linear error compensation (LEC) value in parts-per-million (PPM), you can enter it directly.

If you don’t know the LEC, use the formula on the next page to determine the value for each axis.

To change the linear error compensation:

• Move to the “Linear Error Compensation” display in the Setup

mode. (Press SETUP and then the ENTER key until “LEC” appears).

• Press the

MICRO-LINE will display the current LEC value for that axis.

• Using the keypad, enter the linear error compensation factor (in PPM), followed by the ± key for negative values. The number must be within -9999 and 9999 (use whole numbers). The formula for

calculating the value is on the next page.

• After you complete setting your LEC, press ENTER to continue with setup or press ENTER then SETUP to return to the normal DRO display.

X or Z key for the axis you want to change.

MICRO-LINE Reference Manual

SETUP

How to Determine the Linear Error Compensation

Follow this procedure for each axis:

• In the DRO mode.

• Place a standard of known length on the machine. Make sure it’s parallel with the axis being measured.

• Put the readout in the absolute display mode (ABS/INCR key).

• Using an indicator, locate one end of the standard.

• Press the ZERO key twice for the axis you are measuring. “0” should appear on the display.

• Move the indicator along the axis until it reaches the opposite end of the standard.

• Write down the length that is shown on the readout display for that axis.

• Use the formula below to calculate the LEC for the axis you just measured. Enter the result in the LEC parameter (previous page).

Note: If the measured length is greater than the standard length the

LEC value will be negative.

Formula

M = Measured length

LEC =

(

S - M

)

x 1,000,000S = Standard length

Example

If the length of the standard you used is 10” and the measured length is 9.995”, then the LEC for that axis is 500 parts-per-million (PPM).

LEC =

10 - 9.995

(

9.995

500 PPM

(rounded to the nearest whole number)

MICRO-LINE Reference Manual

x 1,000,000

)

SETUP

Count Direction

Use the count direction setting to define the positive counting direction for each scale. The direction will be displayed as a “1” or a “2” (the numbers are not assigned to a particular direction). You only need to change the count direction if the scale is counting in the negative direction during a positive move, or vice versa.

Refer to Conventions (pg. 31) for more guidelines. To change the count direction:

• Move to the “Count Direction” display in the Setup mode. (Press

SETUP and then the ENTER key until “Ct dir” appears).

• Press the appropriate axis key (

• After you complete setting your count direction, press ENTER to con- tinue with setup or press ENTER then SETUP to return to the normal DRO display.

X or Z) to change the count direction.

MICRO-LINE Reference Manual

SETUP

International Units Only

Input 3 ON/OFF

This parameter allows you to activate the third input. When this input is enabled, Inputs 2 and 3 will be coupled on the Z-axis (both scales will count on the Z-axis).

When Input 3 is enabled, additional parameters will need to be setup. Refer to the procedures on pages 7-9 for setting up the Linear Error Compensation and Count Direction Setup functions.

MICRO-LINE Reference Manual

SETUP

Testing the Scales

Follow these steps to confirm that your scales have been installed properly. This test will confirm the scale’s electrical operation, and will also check the installation integrity.

• Locate a magnetic base on the machine and set the dial indicator on the scale’s reading head casting. Zero the readout and the indicator.

• Move the axis through the full travel and return the dial to “0.” The readout should also read 0 (±.0005” for 10µm scales;

±0.0002” for 5µm scales). If it doesn’t, then the scale cable may be loose, or the scale, mounting bracket, or reading head may need to be tightened or realigned.

• Repeat these steps for each scale.

MICRO-LINE Reference Manual

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