before operating the i nstr um ent. After read ing,
retain it close at hand f or f uture refer ence .
CONVENTIONS USED IN THIS MANUAL
Safety Precautions
To ensure that instruments are operated correctly and safely, Mitutoyo manuals use
various safety symbols (Signal Words and Safety Alert Symbols) to identify and warn
against hazards and potential accidents.
The following signs indicate general warni ngs:
Indicates an imm inently hazardous situation whic h, if not avoided, will result in ser ious
DANGER
WARNING
injury or death.
Indicates a potent ially hazar dous situation whic h, if not avoide d, could result i n serious
injury or death.
CAUTION
Indicates a potent ially haza rdous situatio n which, if not avoided, m ay result in m inor or
moderate injury or property damage.
The following signs indicate specific warnings or prohibited actions, or indicate a
mandatory action:
Alerts the user to a specific hazardous s ituation. The given example m eans “Caution,
risk of electric shock”.
Prohibits a specific action. The given example means “Do not disassemble”.
No. 99MBA040A
Specifies a required action. The given example means “Ground”.
i
CONVENTIONS USED IN THIS MANUAL
Types of Notes
The following types of notes are used in this manual to hel p the operator obtain relia ble
measurement data through correct instrument operation.
IMPORTANT
NOTE
TIP
• An important note provides information essential to the completion of a task. You cannot
disregard this note to complete the task.
• An important note is a type of precaut ion, which if neglected co uld result in a loss of
data, decreased accuracy or instrument malfunction/failure.
A note emphasizes or s upplements important points of the main text. It also suppl ies
information about specific situations (e.g., memory limitations, equipment
configurations, or details that apply to specific versions of a program).
A tip is a type of note that helps the user apply the techniques and procedures described
in the text to his or her specific needs.
It also provides reference information associated with the topic being discussed.
Mitutoyo assumes no liability to an y party for any loss or dam age, direct or ind irect,
ii
caused by use of this instrument not conforming to this manual.
Information in this document is subject to change without notice.
2003 Mitutoyo Corporation. All rights reserved.
No. 99MBA040A
SAFETY PRECAUTIONS
Be sure to read this section and obey the following precautions in order to use the counter
safely.
WARNING
• This counter is intended to be used with general measuring instruments, machine tools,
etc. Do not use this counter with control equipment associated with medical
instruments, aerospace eq uipment, nuclear-energy relate d equipment or the like that,
due to malfunction or accident, could cause injury or death. Consult with Mitutoyo
before using it in such equipment.
• Risk of fire or electric shock. If there is smoke or bad odor coming from the counter, or if
the counter is not operating properl y, imm ediately turn OFF the m ain power swi tch on
the rear panel and unplug the power cord, then contact the dealer for repairs.
• Ris k of fire or el ectric shoc k. If the cou nter is drop ped or dam aged, turn OFF the main
power switch on the rear panel and unplug the power cord, then contact the dealer.
• Risk of fire or electric shock. The user should absolutely not repair or modify the
counter.
CAUTION
• If something gets inside the counter, first turn OFF the main power switch on the rear
panel and unplug the power cord, then contact the dealer.
• Be sure to use the specified power-supply voltage. Operating the counter on other
voltage than the specified could cause circuit failure, fire or electric shock.
• Do not expose the counter to direct sunlight or to excessively hot areas. The
temperature inside the counter could rise, causing fire.
• Do not place t he counter direc tly against a wall or the like. The tem perature inside the
counter could rise, ca using counter failure. Place t he counter at least 10 cm from the
wall so that the power cord can be removed easily.
• Be sure to ground the counter by connecting to the machine tool with the supplied
ground lead. This prevents the counter from malfunctioning.
No. 99MBA040A
iii
WARRANTY
In the event that the Mitutoyo KA Counter should prove defective in workmanship or
material, within one year from the date of original purchas e for use, it will be repaired, at
our option, free of charge upon its prepaid return to us.
This warranty shall n ot apply if the product has been s ubject to fair wear and tear, abuse
through misuse or im proper use/handling/storage/m aintenance/service/repair or through
adaptation/modification by the original purchaser or an y third part y without prior written
consent of Mitutoyo or as a result of damage by an actual disaster or circumstances
beyond the control of Mitutoyo.
To obtain service under this warranty the product must be returned to the nearest Mitutoyo
Service Center. Any postage, insurance, or shipping charges incurred in returning the
product for service are the responsibility of the purchaser.
* This warranty is not transferable and is only valid within the country of the original
purchase.
* You may have additional rights under the laws of country of original purchase that do not
allow the exclusion of implied warranties or the exclusion or limitation of certain
damages. If these la ws apply, Mitutoyo’s limitations and exclusions may not apply to
you.
iv
No. 99MBA040A
CONTENTS
CONVENTIONS USED IN THIS MANUAL.........................................................................................................i
1.2 Name and Function of Each Part .........................................................................................................1-2
1.2.1 Main unit.................................................................................................................................................1-2
3.2 Basic Operations in the Standard Counter .........................................................................................3-2
3.2.1 Turning ON/OFF the power...................................................................................................................3-2
3.2.2 Counting and displaying.......................................................................................................................3-4
3.2.3 Switching the coordinate......................................................................................................................3-5
3.2.6 Saving and recalling a datum point using the scale reference point
(When the AT100 series is connected.) ...............................................................................................3-8
3.2.7 Setting the machine origin using the AT700 series ..........................................................................3-11
3.2.8 Datum setting, centering and measuring with the touch signal probe
(Possible only when the AT100 series is connected.)......................................................................3-13
3.2.9 Halving the display..............................................................................................................................3-16
3.2.10 Bolt-hole circle machining..................................................................................................................3-17
3.3.3 Configuration of coordinates.............................................................................................................3-29
3.3.4 Setup for tool offset............................................................................................................................3-29
3.3.7 Tool number switch............................................................................................................................ 3-32
3.3.9 Halving the display............................................................................................................................. 3-35
3.3.10 Zero approach machining.................................................................................................................. 3-36
3.3.11 Changing the unit of measurement................................................................................................... 3-38
3.3.12 Saving and recalling a datum point using the scale reference point............................................. 3-38
3.3.13 Setting the machine origin using the AT100 series......................................................................... 3-38
4.1 Overview of Parameters .......................................................................................................................4-1
4.2 Types of Parameters .............................................................................................................................4-2
4.2.1 Parameters set for each axis............................................................................................................... 4-2
4.2.2 Parameters common to all axes.......................................................................................................... 4-6
4.2.3 Special parameters............................................................................................................................... 4-8
4.2.4 Display resolution when used for the AT100 series........................................................................4-10
6.1 Main Unit ................................................................................................................................................6-1
6.3.1 Standard accessories........................................................................................................................... 6-2
6.4 Precautions for Using the Code Out Unit............................................................................................6-3
6.5 Precautions for Using the Linear Scale Adapter and Micrometer Head Adapter.........6-3
6.6 Conformance to CE...............................................................................................................................6-4
SERVICE NETWORK
vi
No. 99MBA040A
1 INTRODUCTION
1
1.1 Outline
The KA Counter shall be connected to the following Mitutoyo linear scales:
・Optical scale : AT100 series
・Electromagnetic ind uc tio n sc ale : AT700 series
This chapter describes the name and function of each part.
The user is allowed to cho ose either of the “standard counter” or “lathe counter” modes
through the modification of related parameter.
In addition, it has incor porated various us eful functions that c an meet various needs at a
machining shop, thus realizing a general-purpose multi-performance counter.
No. 99MBE032A
1-1
1.2 Name and Function of Each Part
The name and function of each part of the KA counter is given below.
On this product the user c an switch between the “standar d counter” and “lathe counter ”
modes through the s election of related parameter. Since each counter has the specific
display method and key functions, refer to the descriptions corresponding to each counter.
For the method of switching the counter model, refer to Section 4.2.2, Parameters
commonly set on all models.
1.2.1 Main unit
1) Front panel
1
1 Display: Displays the values for the X-, Y-, and Z-axis, with a 1-digit sign and
7-digit number.
2 Sub-display: Displays set coordinates and display units.
3 Zero reset key: Resets the display for each axis to zero.
4 Ten-key pad: Keys used for entering numerical data.
5 Function keys: Keys for controlling the normal basic functions.
6 Display ON/OFF switch: Turns ON/OFF the display on the front panel.
7 Counting unit display: Displays the set unit of measurement.
6
7
3
2
5
4
1-2
No. 99MBE032A
2) Rear panel
1. INTRODUCTION
1 AC inlet: Connects to the power cord.
2 Main switch: Main switch for turning ON/OFF the power.
3 Linear scale input connectors: Connect the X-, Y-, and Z-axis scale units.
4 Touch signal probe connector: Connects the touch signal probe.
5 Ground terminal: Terminal for connec ting to the grounding wire for gr ounding the
6 RS232C code out unit installation: For installing an optional RS232C code out unit.
51
main unit.
4
6 32
No. 99MBE032A
1-3
1.2.2 Display
1
2
3
1 Data display: Displays a 7-digit number (maximum) and decimal point.
2 Counting unit display: Displays the set unit of measurement.
NOTE
This display is only used when “mm” is selected. Nothing is displayed when inch or
1/25.4 is selected.
3 Shows the displayed coordinate number. This can be used to show the operation
mode.
1-4
No. 99MBE032A
1.2.3 Name and function of keys for the standard counter
The name and function of the function keys and ten-key are given below.
Symbol and name Function
Zero-set k ey Resets the displayed value of the specified
axis to zero.
1. INTRODUCTION
Axis-designation
key
Cancel key • Cancels the number being entered.
Load key Loads the entered values.
Number keys Used to enter numbers 0 to 9.
Decimal-point key Sets the decimal point.
Sign key Switches the en tered number to negative or
ON/OFF switch Turns ON/OFF the display on the counter.
Display-unit switch key Switches the display unit.
• Designates the axis to be set.
• Calls up the previous setting.
• Enables ten-key input.
• Cancels the operation being executed.
• Cancels the error.
positive.
If mm is select ed, then the mm displa y ligh ts
up.
No. 99MBE032A
Zero-approach key The target value is automatically displa yed,
Bolt-hole circle key (av aila ble
with 2- and 3-axis counter)
Pitch machining key Used to perform a pitch machining.
1/2 key Halves the displayed value.
and sets the function to perform machining
until the displayed value is zeroed.
If holes are machined along a circumference,
this sets the function to automatically display
the target coordinates.
1-5
Symbol and name Function
Coordinate switch Switches the coordinate between 0 and 9.
Datum point set key Sets the function for datum point recall
using a scale reference point.
(Possible only when the AT100 series is
connected.)
Touch signal set key Sets the function for datum point setting
with the touch signal.
(Possible only when the AT100 series is
connected.)
Hold key Sets the function to hold the counter display
using the signal from the scale reference
point and touch signal probe.
(Possible only when the AT100 series is
connected.)
1.2.4 Name and function of keys for the lathe counter
The name and function of the function keys and ten-key are given below.
Symbol and name Function
Zero-set key Resets the displayed value of the s pecified
axis to zero.
Axis-designation
key
Cancel key • Cancels the number being entered.
Load key Loads the entered values.
Number keys Used to enter numbers 0 to 9.
Decimal-point key Sets the decimal point.
• Designates the axis to be set.
• Calls up the previous setting.
• Enables ten-key input.
• Cancels the operation being executed.
• Cancels the error.
1-6
Sign key Switches the entered number to negative or
positive.
No. 99MBE032A
1. INTRODUCTION
Symbol and name Function
ON/OFF switch Turns ON/OFF the display on the counter.
Display-unit switch key Switches the display unit.
If mm is selected, then the mm display
lights up.
Zero-approach key The target value is autom aticall y displa yed,
and sets the function to perf orm machining
until the displayed value is zeroed.
Bolt-hole circle key (available
with 2- and 3-axis counter)
Pitch machining key Not used.
1/2 key Halves the displayed value.
Tool number switching key Switches the tool number between 1 and 4.
Datum point set key Sets the function for datum point recall
T ool’ s machining coordinate
switching key
Hold key Sets the function to hold the counter display
Not used.
using scale reference point.
(Possible only when the AT100 series is
connected.)
Switches the tool’s machining coordinate
over ABS and INC.
using the signal from the scale reference
point and touch signal probe.
No. 99MBE032A
1-7
1.2.5 3-axis counter
1) Front panel of the main unit
2) Rear panel of the main unit
1-8
No. 99MBE032A
1 SETUP
2
2.1 Opening the Package
The package includes the following items.
KA counter 1
This chapter explains the procedures for setting up the KA counter.
Description of goods Quantity
NOTE
Power cord (1.8 m)
(2 m only for Australia-oriented specification)
After opening the package, check to make sure that the counter and standard
accessories are all there and that there are no nonconforming parts, and check that
nothing was damaged during shipment.
1
No. 99MBE032A
2-1
2.2 Installation
Use the M5 screw holes at the bottom of the counter for installing it to the counter stand or
the main unit of the machine tool.
The external dimens ions of the count er and the l ocati on of the scr ew holes f or installati on
are shown in the figure below.
NOTE
• There are no special installation fixtures supplied with this counter.
• External dimensions given below apply to 1-, 2-, and 3-axis counters.
2-2
NOTE
The fastening torque of screws ranges from 0.0015 to 0.002N • m (0.15 to 0.2kg • m).
Fastening with a torque exceeding this range may cause the counter case to be
damaged.
No. 99MBE032A
2.3 Connecting to the Counter
When connecting the power cord and external equipment to this counter, connect the
connectors to the rear panel as shown below. (Below diagram is applied for 2-axis
counter.)
2. SETUP
IMPORTANT
When connecting to external equipment, take note of the following items.
• Make sure the main power switch on the rear panel is off.
(This is not the display ON/OFF switch on the front panel.)
• Use the supplied power cord only.
• Connect this counter with the machine tool using the supplied grounding wire to avoid a
risk of electric shock.
• The power-supply line for this counter should be separate from that for the machine tool,
and if possible should be supplied from a dedicated outlet.
• Make sure the cables and external equipment are connected to the counter securely.
• If the Linear Scale is not connected to this counter, the least significant digit may flicker,
but this is not a malfunction.
• Since the scale m odel (AT100 series or AT700 series) is identified at a tim ing when the
main switch is turned to ON, always turn the main switch to ON with the desirable scale
being connected.
No. 99MBE032A
2-3
2-4
No. 99MBE032A
1 BASIC OPERATIONS
3
3.1 Explanatory Notes
The explanations of operations in this chapter are organized in such a manner as shown
below. Read this chapter with understanding of the way of explanation. Operation
procedures described in this manual are mainly based on the case of using the 2-axis
counter. Operation procedures unique to 1- or 3-axis counters are described when
necessary.
This chapter describes the basic operation of the KA counter.
Q Operation example display
No. 99MBE032A
3-1
3.2 Basic Operations in the Standard Counter
3.2.1 Turning ON/OFF the power
• Main power switch on the rear panel
The switch on the rear panel is
the main power switch. It turns
ON/OFF of the main power to
the counter.
• Display ON/OFF switch on the front panel
This is the switch to ON/OFF
the counter display. The display
will be on/off every time the
switch is pressed. If the main
power switch is on and this
switch is off, only the display
will be off, although the power
is supplied to the counting
circuits and the Linear Scales.
NOTE
• For normal operation after the power has been turned on the main power switch on the
rear panel should be left on, and the counter should be turned ON/OFF using the
display ON/OFF switch on the front panel.
• If the display is blinking after the power is turned on using the display ON/OFF switch,
this indicates that the displayed value is of no use. If this happens, cancel the value
using the Cancel key, then reset the machining datum point.
•Always operate the keys only with fingers. If a key is pressed with a sharp tip such as a
screwdriver, it may be damaged.
3-2
No. 99MBE032A
3. BASIC OPERATIONS
● Where AT100 series is connected:
1) Turning the power on
To turn the power on, turn on the main power switch on the rear panel.
If this is the first time since setting up the KA counter, the display will blink.
(This indicates that the displayed value is of no use.)
By pressing the Cancel key, the counter is ready to display a normal count value.
By referring to “3.2.3 Zero-set”, “3.2.4 Preset”, and “3.2.5 Saving and recalling a
datum point using the scale reference point”, set a machining datum point.
2) Turning the power off
NOTE
Use the display ON/FF switch on the front panel to turn the power off while remaining
the main power switch on the rear panel on.
By pressing the display ON/OFF switch, the display can be off.
3) Turning the power on again
Press the display ON/OFF switch on the front panel.
The display will be on.
• If there happened an abnormality in the power line, such as a power failure, the next
time the power is turned on using the display ON/OFF switch, the display will blink as
described in 1) above. If this happens, set the reference point for machining again.
• When the display is blinked even if parameter No. 15, described in Chapter 4, has been
set to “Save display”, this indicates that the displayed value is of no use. If this happens,
set the reference point for machining again.
No. 99MBE032A
3-3
● Where AT700 series is connected:
1) Turning the power on
To turn the power on, turn on the main power switch on the rear panel.
At this time, the display indicates the distance from the scale reference point.
By referring to “3.2.3 Zero-set”, “3.2.4 Preset”, and “3.2.6 Setting the machine origin
with the AT700 series”, set a machining datum point.
2) Turning the power off
Use the display ON/FF switch on the front panel to turn the power off while remaining
the main power switch on the rear panel on.
By pressing the display ON/OFF switch, the display can be off.
3) Turning the power on again
Press the display ON/OFF switch on the front panel.
The display will be on.
3.2.2 Counting and displaying
This section is for the user who is using the KA counter with a minimum resolution of
0.0005 or 0.0001mm (0.5 or 0.1µm).
The user who is using it with a minimum resolution of 0.005 or 0.001mm (5 or 1µm) may
skip this section.
• In order to expand the display range of the KA counter, the counting range in the +
count direction and the - count direction are different.
The counting range when the KA counter is used with the minimum resolution of
0.0005 or 0.0001mm (0.5 or 0.1µm) is as follows:
+9999.9999 to -999.999 (approximately +10m to -1m)
3-4
No. 99MBE032A
3.2.3 Switching the coordinate
Moves from the current Coordinate to the specified coordinate.
• Moves from the current Coordinate 3 to Coordinate 5.
KA counter coordinate
Coordinate No. Function
0 A coordinate system that displays coordinate values from the machine
origin. It does not allow zero-setting and presetting. To use this
function, perform either of “3.2.5 Saving and recalling a datum point
using the scale reference point” or “3.2.6 Setting the machine origin
with the AT700 series”.
3. BASIC OPERATIONS
1 to 9 A coordinate system used for performing usual machining operation.
3.2.4 Zero-set
Resets the display value for each axis to zero.
• Resets the X-axis value to zero.
* Zero-adjustment cannot be performed at coordinate 0.
3.2.5 Preset
Set an arbitrary value onto the arbitrary axis through the key entry. Preset values can be
saved in memory for each coordinate so that they can be retrieved even after the system
power is reset.
• Preset -12.3 for the X-axis.
No. 99MBE032A
3-5
• Call up the value preset to preset it as is for the X-axis.
• Canceling the key input before loading the preset value.
If the Load key has not yet been pressed, it is possible to cancel all of the input
numbers by pressing the Cancel key. After the numbers have been canceled, the
display returns to the value before key input. If the Load key has already been pressed,
use the preset operation again to set the correct value.
IMPORTANT
• Preset data stored in the KA counter is the data input by the most recent preset
operation.
• The preset data stored in the KA counter has been saved on the basis of coordinate
systems described later.
• If data is preset through operation of the touch signal probe or zero-approach function
(described later), the preset data stored in the KA counter will be changed to those
values.
• Do not displace any axis scale during numeric entry. If displaced during entry for
presetting, etc., the scale unit may be damaged due to an overrun.
• Even if the counter exceeds the counting range, Error 30 will not be displayed during
numeric entry. The error message will be displayed after numeric entry has been
completed.
• Do not displace any axis scale too much while presetting is being performed.
• Zero-adjustment cannot be performed at Coordinate 0.
3-6
No. 99MBE032A
3. BASIC OPERATIONS
NOTE
If the following operations 1 and 2 are repeated at the occurrence of an overflow when
using the AT100 series linear scale, an overflow error (Error30) may occur even if a value
smaller than the maximum preset value shown below is preset.
If presetting a large value and error occurrence are repeated multiple times, the
above-mentioned situation will be encountered due to overflow of offsetting in the
counter. If this is the case, perform offset correction procedure described below for the
axis where Error30 has occurred, then the normal state will be restored.
Exercise care when presetting a large value exceeding the maximum preset value.
• Operation at the occurrence of an overflow
1. Preset a value (larger than the maximum preset value).
2. An error occurs. (E.g. Error20)
3. Repeat steps 1 and 2.
• Maximum preset value
Resolution Maximum preset value
0.01/0.05 mm
0.001/0.005 inch
0.001/0.005 mm
0.0001/0.0005 inch
+500000.00 (500 m)
+200000.00 inch
+50000.000 (50 m)
+2000.0000 inch
0.0001/0.0005 mm
0.00001/0.00005 inch
• Overflow correction procedure
a. Press the [▼], [SET], [X] (or [Y] or [Z]), [0], and [LOAD] keys in this order.
b. Move the linear scale to pass through the origin mark.
For the user who is using the KA counter with a minimum resolution of 0.0005 or
0.0001mm.
When data to be preset is smaller than or equal to 1m, the display method of the most
significant digit and the sign differ from the normal preset. It alternately displays the sign
and the most significant digit as shown in the figure below.
• Example) +9999.9999
+5000.0000 (5 m)
+200.00000 inch
Alternately displays a cursor and a numeric.
No. 99MBE032A
3-7
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