brown & sharpe Global 9128 User manual

USER M A N U A L
Global
This manual includes site preparation information for the
following machines.
Global 128 Global 122210
Global 158 Global 121510
Global 208 Global 123010
62- 0103 English
shaping the future of measurement
© 2000 Brown&Sharpe Manufacturing Company

Global Contents
User Manual 0-1
Contents
1. GENERAL INFORMATION......................................................................1-1
A FEW WORDS ABOUT THIS MANUAL...........................................................................1-3
ADDITIONAL INFORMATION............................................................................................1-4
FEEDBACK ABOUT THIS DOCUMENT..............................................................................1-4
CONTROLLER REFERENCES............................................................................................1-4
MACHINE SAFETY................................................................................................1-5
General Saftey....................................................................................................1-5
Electrical Safety. .............................................................................................1-6
Pneumatic Safety ............................................................................................1-6
THE BROWN & SHARPE GLOBAL COORDINATE MEASURING MACHINE ..................1-7
SYSTEM SPECIFICATIONS .......................................................................................1-8
Global 9XX8 Specifications ............................................................................1-8
Global 12XX10 Specifications ........................................................................1-9
Global 9XX8 /12XX10 Capacity View ..........................................................1-10
2. SYSTEM SET-UP .........................................................................................2-1
OPERATING TIPS ...................................................................................................2-3
START-UP CHECKLIST ............................................................................................2-3
STARTING THE GC-2 CONTROLLER .......................................................................2-7
STARTING THE GC-1 CONTROLLER .......................................................................2-8
MOUNTING PARTS .................................................................................................2-9
PROBE INSTALLATION ..........................................................................................2-11
3. ELECTRICAL SYSTEM.............................................................................3-1
SYSTEM POWER UP...............................................................................................3-3
SYSTEM SCHEMATICS ............................................................................................3-3
SYSTEM OVERVIEW ...............................................................................................3-3
SYSTEM REQUIREMENTS ........................................................................................3-3
4. PNEUMATIC SYSTEM.................................................................................4-1
SYSTEM REQUIREMENTS ........................................................................................4-3
SYSTEM OVERVIEW ...............................................................................................4-3
THE BRIDGE .........................................................................................................4-5
SYSTEM POWER-UP...............................................................................................4-9

Global Contents
User Manual
0-2
Contents
5. MAJOR COMPONENTS ............................................................................5-1
GRANITE AND PEDESTALS ......................................................................................5-3
THE BRIDGE .........................................................................................................5-6
Pneumatic System .........................................................................................5-10
Pneumatic System Air Pressure Adjustment.............................................5-11
Counterbalance Cylinder Air Pressure Adjustment...................................5-12
6. SYSTEM OPTIONS .....................................................................................6-1
TEMPERATURE COMPENSATION ..............................................................................6-3
MANUAL TEMPERATURE COMPENSATION ...............................................................6-3
LINEAR TEMPERATURE COMPENSATION .................................................................6-3
A.C.T.I.V.............................................................................................................6-4
PROBES .................................................................................................................6-5
TP20 Probe .....................................................................................................6-5
TP200 Probe ...................................................................................................6-5
TRAX Probe Head.........................................................................................6-6
SP600 Probe ...................................................................................................6-6
PROBE COMPENSATION AND QUALIFICATION ..........................................................6-7
MEASURING WITH AN ELECTRONIC PROBE .............................................................6-9
TOUCH TRIGGER PROBE REPEATABILITY .............................................................6-10
PLANNING THE MEASUREMENT ............................................................................6-13
7. CONTROLS ..................................................................................................7-1
CONTROLLER INFORMATION ..................................................................................7-3
GC-2 CONTROLLER ..............................................................................................7-3
GC-1 CONTROLLER ..............................................................................................7-6
HOMING SEQUENCE...............................................................................................7-9
JOG BOX .............................................................................................................7-12
8. SYSTEM TROUBLESHOOTINGAND QUESTIONS ............................8-1
SYSTEM TROUBLESHOOTING (MACHINE)................................................................8-3
Machine won’t turn on....................................................................................8-3
Machine won’t repeat measurement ...............................................................8-3
Inaccurate Measurements ...............................................................................8-4
Probe does not take hits.................................................................................. 8-4

Global Contents
User Manual 0-3
Contents
SYSTEM TROUBLESHOOTING (COMPUTER AND PERIPHERALS) .................................8-5
The computer won’t turn on............................................................................8-5
No Power to Monitor ......................................................................................8-5
Printer does not work .....................................................................................8-5
FREQUENTLY ASKED QUESTIONS ...........................................................................8-7
9. SYSTEM MAINTENANCE...........................................................................9-1
MAINTENANCE INFORMATION ...................................................................................9-3
Safety-.............................................................................................................9-4
Maintenance Tips............................................................................................9-4
Scheduled Maintenance Intervals ...................................................................9-4
Scheduled Maintenance Checklist..................................................................9-5
Daily: ..........................................................................................................9-5
10. INTRODUCTION TO CMM .......................................................................10-1
The Coordinate System.................................................................................10-3
The Machine Coordinate System .................................................................10-6
The Part Coordinate System .........................................................................10-7
An Explanation of Alignment .......................................................................10-8
An Explanation of Datum .............................................................................10-9
An Explanation of Translation....................................................................10-11
An Explanation of Rotation ........................................................................ 10-13
Measured and Constructed Features...........................................................10-15
Volumetric Compensation ..........................................................................10-17
Qualifying Probe Tips.................................................................................10-19
Projections ..................................................................................................10-20
Effective Probe Techniques ........................................................................10-22
Geometric Dimensioning and Tolerancing .................................................10-26
Geometric Characteristic Symbols .............................................................10-27
11. INDEX......................................................................................................11-1

Global General Information
Global User Manuall 1-1
General Info
SECTION 1
General
Information
1-3 A Few Words About this Manual
1-4 Additional Information
1-4 Feedback about this document
1-5 Machine Safety
1-5 General Safety
1-6 Electrical Safety
1-6 Pneumatic Safety
1-7 The Brown & Sharpe Global Coordinate Measuring System
1-8 System Specifications
1-8 Global 9xx8 Specifications
1-9 Global 12xx10 Specifications
1-10 Global 9xx8/12xx10 Capacity View

Global General Information
Global User Manuall 1-3
General Info
A few words about this manual
This manual has been developed to provide personnel with
information required to operate the Brown & Sharpe CMM in a
safe and efficient manner. All personnel associated with the
machine’s operation, including but not limited to Maintenance
and Machine Operators, should read this document in its entirety
and understand its contents.
Although the information contained in this document is accurate
as of the date of publication we reserve the right to make
changes to and update the document without notice whenever
necessary to reflect improvements in the performance and
quality of the product. If at any time your personnel believe that
there are discrepancies in the information contained in this
document particularly when related to safety issues, it is recom-
mended that you contact Brown & Sharpe for assistance before
proceeding. Any unauthorized modifications to the machine will
immediately void the warranty and may result in system damage
or personal injury. Since minor changes may be periodically
made by Brown & Sharpe to improve machine performance,
some information relative to your particular system may differ
from the description in the manual. In such cases, supplementary
information will be furnished as soon as it becomes available at
the following internet address
http://manuals.brownandsharpe.com
This manual is an exclusive publication of Brown & Sharpe
Manufacturing Company and it may not be reproduced in whole

Global General Information
Global User Manual
1-4
Additional information
If you would like to learn more about Brown & Sharpe, or for
information about upcoming training classes, please visit our
web site at this address:
http://www.brownandsharpe.com
This manual is also available on the Internet at the following
address.
http://manuals.brownandsharpe.com
Feedback about this Document
Comments or suggestions about this manual should be directed
to 1.800.343.7933 (9a-5p EST).
Controller References
Throughout the Global documentation,
• The B3C-LC controller will be reffered to as GC-2.
• The FBPC controller will be reffered to as GC-1.

Global General Information
Global User Manuall 1-5
General Info
Machine Safety
Operating any system in a safe manner is a full time job. Always
concentrate on the job you are working on and stay focused.
Distractions can prove to be dangerous to you, the people
working around you or the machine. Read and understand the
safety list below before proceeding any further in this manual.
Inspect the machine daily to verify that all guards are in place.
Never operate the machine with any safety guards removed.
General Safety
√Always wear safety glasses when operating this machine.
Additionally, wear any relative safety equipment as dictated
by the working environment.
√A 2” bright yellow caution stripe should be painted 16”
outside the machine area. When the machine is active, stay
outside of this safety zone.
√Do not attempt to operate the machine until you have read
the Site Preparation and User’s Operation Manual.
√Do not attempt to run the machine until you are completely
certain that you understand how to turn the machine off in an
emergency.
√Do not remove or tamper with any Warning notices on the
machine.
√Do not bypass or disconnect any safety devices.
√Use the granite surface as a measuring area only.

Global General Information
Global User Manual
1-6
Electrical Safety
√Never troubleshoot any electrical problems unless you are
experienced in diagnosing electrical faults.
√Keep the controller cabinet closed to prevent accidental
contact with potentially energized electrical components.
√Always disconnect and lockout the power cabinet before
attempting ANY repairs on the system.
√ALWAYS use lockout tags when servicing the machine.
Make sure that no one can power up the machine without
your knowledge.
√Solid state control units require proper grounding and
shielding. Ensure that all shields are properly connected
after any repairs. Any unauthorized modifications to ma-
chine wiring will immediately void the warranty and may
result in damage or personal injury.
Pneumatic Safety
√System pressure must be completely drained and the system
locked-out before any repairs are made.
√Do not used compressed air to clean the machine. Com-
pressed air can cause dirt, metal chips etc. to interfere with
air bearing operation. Use a vacuum whenever possible.
√Do not attempt to move the bridge, carriage or Z-rail while
air pressure to the system is below the specified minimum of
58 psi. Serious damage to the machine may result.
√Tighten all pneumatic fittings before repressurizing the
system.

Global General Information
Global User Manuall 1-7
General Info
The Brown & Sharpe Global
Coordinate Measuring Machine
The Brown & Sharpe Global Coordinate Measuring Machine
(CMM) you have purchased is the most technically advanced
and functionally accurate CMM on the market today. The
unmatched accuracy and increased speed capability will provide
an excellent return on your investment.
Brown & Sharpe Mfg. has a rich history with 170 years of
experience in the design and manufacture of precision measuring
instruments. Our commitment to producing accurate dependable
machinery is recognized around the world. By purchasing the
Brown & Sharpe Global CMM you have joined an elite family
of individuals, not unlike yourself, who share your desire to
provide their customers efficient, accurate services.
You will want to locate the newly designed Global CMM in a
prominent area of your facility to display your commitment to
accuracy and repeatability. The Brown & Sharpe Global CMM
has undergone rigorous testing to ensure that you will be com-
pletely satisfied with your purchase. Everything you need to
know about setting up the Global CMM is contained within this
manual. Read the document completely so that you can accu-
rately prepare your site for the Brown & Sharpe representative
who will set up, test and answer any questions you have about
your machine.

Global General Information
Global User Manual
1-8
System Specifications
Floor Plan - Global 9xx8 Right Side View
GC-2 Controller
(Opt. Controller: GC-1 Global 750x230x468)

Global General Information
Global User Manuall 1-9
General Info
Floor Plan - Global 12XX10 Right Side
View
GC-2 Controller
(Opt. Controller: GC-1 Global 750x230x468)

Global General Information
Global User Manual
1-10
Floor Plan - Global 9XX8 Front View

System Set-Up
Global User Manual 2-1
System Set-Up
SECTION 2
System
Set-Up
2-3 Operating Tips
2-4 Start-Up Checklist
2-6 Starting the GC-1 Controller
2-7 Starting the GC-2 Controller
2-8 Mounting Parts
2-10 Probe Installation

System Set-Up
Global User Manual 2-3
System Set-Up
Operating Tips
.If you are unsure about the correct way to perform a job,
ask for instructions before proceeding.
.During the CMM’s operation, do not allow the probe or
Z ram to strike the workpiece or other obstacle.
.During the CMM’s operation, do not allow the bridge,
X-Z carriage, or Z ram to impact the end stops.
.During CMM operation, do not move the bridge, X-Z
carriage, or Z ram when the “Air Pressure Low” error
message is displayed by the computer.
.Be sure that the main air line is always securely attached
to the system.
.DO NOT attempt to move the bridge, carriage or Z-rail
while air pressure is below the value noted in the pneu-
matic section of this manual. Serious damage to the
machine will result.
.Before mounting parts or fixtures, clean away any chips
or debris using a brush or vacuum.. Do not use com-
pressed air to clean the machine.
.Clean all exposed bearing ways prior to using machine,
using a clean soft cloth.
Start-up Checklist
Prior to starting the machine. Verify that the following steps have
been taken. (Refer to the Site Preparation Manual for more
information about the items noted below)

System Set-Up
Global User Manual
2-4
. Machine and work station are in position and level. The
machine must be allowed to thermally stabilize prior to
calibration. Stabilization times will vary by size and thick-
ness of granite.
. Shipping brackets and preload bearing clamps have been
removed
· Rust preventative has been removed from all surfaces.
· All system guards are in place.
· Electrical service power has been properly connected and
inspected.
. Air supply has been properly connected and inspected. Air
supply is set to the correct pressure as defined in the Pneu-
matic section of this manual.
. The computer system software is installed and all interfaces
have been properly installed.
Safety -
The pre-operation checklist must be performed and
followed specifically to ensure a safe and continuous operation
of the CMM.
Follow all recommended safety procedures.
Always wear safety glasses when working on or near the
CMM.
Pre-operation checklist:
· Verify that all required Routine Maintenance has been
performed.
· Wipe down surfaces with alcohol and a soft cloth.