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ACU-RITE III Digital Measuring System Operators Manual: I.M. Inventory # A-161A
GeneralInformation ....................... .. ii
Warrantyto the User. ...................... .. ii FCCComplianceStatement.................. .. ii
SECTION 1 INTRODUCTION
1.1 How To Use This Manual 1-1
1.2 System Description 1-1
1.3 Features You Should Know About. 1-1
1.3.1 Absolute/Incremental Measurement Mode 1-1
1.3.2 Inch-to-Millimeter Direct Conversion . 1-2
1.3.3 Preset Key 1-2
1.3.4 Machine Tool Geometry (Abbe) ErrorCompensation............. .. 1.2
1.3.5 Large Scale Integrated (LSI) Circuitry. 1-2
1.3.6 L.E.D. Display 1-2
1.3.7 Auto Enable 1-2
1.3.8 Radius/Diameter 1-2
1.3.9 Tool Offset Dimension 1-2
1.3.10 Keyboard Annunciator. 1-2
1.3.11 Membrane Control Panel 1-2
1.3.12 Switchable Resolution 1-2
1.3.13OtherFeatures ................... 1-3
1.4 Specifications 1-3
1.4.1 Console 1-3
1.4.2 Scale Assemblies 1-4
SECTION 2 INSTALLATION
2.1 Installation of Console 2-1
2.1.1 General 2-1
2.1.2 Console Location 2-1
2.2 Electrical Connections 2-1
2.2.1 Internal Switch Settings 2-3
2.2.2 Switchable Radius/Diameter Feature. 2-4
SECTION 3 OPERATION
3.1 General 3-1
3.2 Control Panel Description 3-1
3.2.1 Fault Indicator 3-1
3.2.2 L.E.D. Display 3-2
3.2.3 ZERO RESET Key 3-2
3.2.4 AUTO ENABLE Key 3-2
3.2.5 PRESET Key 3-2
3.2.6 Digit Keyboard 3-2
3.2.7 CLEAR Key 3-2
3.2.8 ABS-INCR Keys 3-2
3.2.9 INCH-mm Keys 3-2
3.2.10 Plus-Minus Keys 3-2
3.2.11 Including Tool Offset Dimensions 3-3
3.3 Operating Procedures 3-3
3.3.1 Setup 3-4
3.3.2 Incremental Mode Operation 3-4
3.3.3 Preset Operation 3-4
3.3.3.1 Example Procedure A 3-5
3.3.3.2 Example Procedure B 3-6
3.3.4 Tool Offset Operation 3-6
3.3.4.1 Example Procedure A 3-6
3.3.4.2 Example Procedure B 3-6
3.3.4.3 Example Procedure C 3-7
3.3.4.4 Example Procedure D 3-7
3.3.5 Absolute Mode Operation 3-7
3.3.6 Combined-Mode Operation 3-8
3.4 How To Use Auto Enable 3-9
SECTION 4 MACHINE TOOL ERROR COMPENSATION 4.1 Why Errors Occur 4-1
4.2 How To Measure Errors 4-1
4.2.1 Abbe Error 4-1
4.2.2 Repeatability Error 4-2
4.3 Error Correction Procedure 4-3
SECTION 5 MAINTENANCE 5.1 General 5-1
5.2 Cover Removal Procedure 5-1
5.3 Keyboard Annunciator Volume Setting 5-1
5.4 Preliminary Troubleshooting 5-1
5.5 System Troubleshooting 5-1
5.6 Scale Assembly Troubleshooting (A-R/l and A-R/5) 5-5
5.7 Reading Head Removal and Replacement 5-5 ILLUSTRATIONS Figure 1-1 ACU-RITE Digital Position Readout and Scale Assemblies ,
1-1 Figure 2-1
Console Electrical Connections 2-1
Figure 2-2 Internal Switch and Jumper
Locations on Axis Board 2-2
Figure 2-3 Decimal Point Jumper Placement on Axis Board Viewed from Back of Counter 2-3
Figure 2-4 Triple Axis Board with High/Low 2-5
Figure 3-1 Control Panel 3-1
Figure 3-2 Representation of Tool Offset Symbols (Plus/Minus Keys) 3-3
Figure 3-3 Table Travel Polarities (Direction) 3-3
Figure 3-4 Console Status: Power On 3-4
Figure 3-5 Console Status: Zero Reset 3-4
Figure 3-6 Console Status: Fault Indicator 3-4
Figure 3-7 Workpiece for Incremental
Procedure 3-4
Figure 3-8 Console Status: Preset Value Display.. 3-5
Figure 3-9 Console Status: Clearing Preset and Display 3-5
Figure 3-10 Console Status: Digital Display 3-5
Figure 3-11 Console Status: Preset Entry,
Incremental Mode 3-5
Figure 3-12 Workpiece for Preset Procedure A 3-5
Figure 3-13 Workpiece for Preset Procedure B 3-6
Figure 3-14 Workpiece for Tool Offset Procedure A 3-6
Figure 3-15 Workpiece for Tool Offset Procedure B 3-7
Figure 3-16 Workpiece for Tool Offset ProcedureC ..................... 3-7
Figure 3-17 Workpiece for Tool Offset
Procedure D ..................... 3-7
Figure 3-18 Console Status: Absolute Mode 3-8
Figure 3-19 Console Status: Preset Entry,
Absolute Mode 3-8
Figure 3-20 Console Status: Clearing Preset in Absolute Mode 3-8
Figure 3-21 Console Status: Digital Display in Absolute Mode 3-8
Figure 3-22 Workpiece for Combined Mode
Procedure ....................... 3-8
Figure 3-23 Console Status: Auto Enable
TABLES
Exaggerated Abbe Error Curve of Travel on a Milling Machine with an Overhanging Table 4-1
First Step in Measuring Abbe Error. .. 4-1
Second Step in Measuring Abbe Error 4-1 Error Slope Plotted in Inches 4-2
Error Sope Plotted in mm 4-2
Test Points on Display Board
5-1 Test Points on Power Supply Board
5-1 A-R/5 Scale Assembly Parts Identification 5-6
A-R/l Scale Assembly Parts Identification 5-7
Table 1-1 Display and Resolution of Switchable
Resolution Setting 1-2
Table 2-1 Internal Switch Settings 2-3
Table 2-2 Round-off in mm/inch Conversion 2-4
Table 3-1 Resolutions Versus Speed 3-2 Table 4-1 Standard and Displayed
Measurements Onch) 4-2
Table 4-2 Standard and Displayed
Measurements (Metric) 4-2
Table 4-3 Switch Assembly SI Settings for
Error Connectjon and Diameter
Readout Selection 4-3
Table 5-1
System Troubleshooting 5-2
This Manual is 11 Printed Pages.
GeneralInformation ....................... .. ii
Warrantyto the User. ...................... .. ii FCCComplianceStatement.................. .. ii
SECTION 1 INTRODUCTION
1.1 How To Use This Manual 1-1
1.2 System Description 1-1
1.3 Features You Should Know About. 1-1
1.3.1 Absolute/Incremental Measurement Mode 1-1
1.3.2 Inch-to-Millimeter Direct Conversion . 1-2
1.3.3 Preset Key 1-2
1.3.4 Machine Tool Geometry (Abbe) ErrorCompensation............. .. 1.2
1.3.5 Large Scale Integrated (LSI) Circuitry. 1-2
1.3.6 L.E.D. Display 1-2
1.3.7 Auto Enable 1-2
1.3.8 Radius/Diameter 1-2
1.3.9 Tool Offset Dimension 1-2
1.3.10 Keyboard Annunciator. 1-2
1.3.11 Membrane Control Panel 1-2
1.3.12 Switchable Resolution 1-2
1.3.13OtherFeatures ................... 1-3
1.4 Specifications 1-3
1.4.1 Console 1-3
1.4.2 Scale Assemblies 1-4
SECTION 2 INSTALLATION
2.1 Installation of Console 2-1
2.1.1 General 2-1
2.1.2 Console Location 2-1
2.2 Electrical Connections 2-1
2.2.1 Internal Switch Settings 2-3
2.2.2 Switchable Radius/Diameter Feature. 2-4
SECTION 3 OPERATION
3.1 General 3-1
3.2 Control Panel Description 3-1
3.2.1 Fault Indicator 3-1
3.2.2 L.E.D. Display 3-2
3.2.3 ZERO RESET Key 3-2
3.2.4 AUTO ENABLE Key 3-2
3.2.5 PRESET Key 3-2
3.2.6 Digit Keyboard 3-2
3.2.7 CLEAR Key 3-2
3.2.8 ABS-INCR Keys 3-2
3.2.9 INCH-mm Keys 3-2
3.2.10 Plus-Minus Keys 3-2
3.2.11 Including Tool Offset Dimensions 3-3
3.3 Operating Procedures 3-3
3.3.1 Setup 3-4
3.3.2 Incremental Mode Operation 3-4
3.3.3 Preset Operation 3-4
3.3.3.1 Example Procedure A 3-5
3.3.3.2 Example Procedure B 3-6
3.3.4 Tool Offset Operation 3-6
3.3.4.1 Example Procedure A 3-6
3.3.4.2 Example Procedure B 3-6
3.3.4.3 Example Procedure C 3-7
3.3.4.4 Example Procedure D 3-7
3.3.5 Absolute Mode Operation 3-7
3.3.6 Combined-Mode Operation 3-8
3.4 How To Use Auto Enable 3-9
SECTION 4 MACHINE TOOL ERROR COMPENSATION 4.1 Why Errors Occur 4-1
4.2 How To Measure Errors 4-1
4.2.1 Abbe Error 4-1
4.2.2 Repeatability Error 4-2
4.3 Error Correction Procedure 4-3
SECTION 5 MAINTENANCE 5.1 General 5-1
5.2 Cover Removal Procedure 5-1
5.3 Keyboard Annunciator Volume Setting 5-1
5.4 Preliminary Troubleshooting 5-1
5.5 System Troubleshooting 5-1
5.6 Scale Assembly Troubleshooting (A-R/l and A-R/5) 5-5
5.7 Reading Head Removal and Replacement 5-5 ILLUSTRATIONS Figure 1-1 ACU-RITE Digital Position Readout and Scale Assemblies ,
1-1 Figure 2-1
Console Electrical Connections 2-1
Figure 2-2 Internal Switch and Jumper
Locations on Axis Board 2-2
Figure 2-3 Decimal Point Jumper Placement on Axis Board Viewed from Back of Counter 2-3
Figure 2-4 Triple Axis Board with High/Low 2-5
Figure 3-1 Control Panel 3-1
Figure 3-2 Representation of Tool Offset Symbols (Plus/Minus Keys) 3-3
Figure 3-3 Table Travel Polarities (Direction) 3-3
Figure 3-4 Console Status: Power On 3-4
Figure 3-5 Console Status: Zero Reset 3-4
Figure 3-6 Console Status: Fault Indicator 3-4
Figure 3-7 Workpiece for Incremental
Procedure 3-4
Figure 3-8 Console Status: Preset Value Display.. 3-5
Figure 3-9 Console Status: Clearing Preset and Display 3-5
Figure 3-10 Console Status: Digital Display 3-5
Figure 3-11 Console Status: Preset Entry,
Incremental Mode 3-5
Figure 3-12 Workpiece for Preset Procedure A 3-5
Figure 3-13 Workpiece for Preset Procedure B 3-6
Figure 3-14 Workpiece for Tool Offset Procedure A 3-6
Figure 3-15 Workpiece for Tool Offset Procedure B 3-7
Figure 3-16 Workpiece for Tool Offset ProcedureC ..................... 3-7
Figure 3-17 Workpiece for Tool Offset
Procedure D ..................... 3-7
Figure 3-18 Console Status: Absolute Mode 3-8
Figure 3-19 Console Status: Preset Entry,
Absolute Mode 3-8
Figure 3-20 Console Status: Clearing Preset in Absolute Mode 3-8
Figure 3-21 Console Status: Digital Display in Absolute Mode 3-8
Figure 3-22 Workpiece for Combined Mode
Procedure ....................... 3-8
Figure 3-23 Console Status: Auto Enable
TABLES
Exaggerated Abbe Error Curve of Travel on a Milling Machine with an Overhanging Table 4-1
First Step in Measuring Abbe Error. .. 4-1
Second Step in Measuring Abbe Error 4-1 Error Slope Plotted in Inches 4-2
Error Sope Plotted in mm 4-2
Test Points on Display Board
5-1 Test Points on Power Supply Board
5-1 A-R/5 Scale Assembly Parts Identification 5-6
A-R/l Scale Assembly Parts Identification 5-7
Table 1-1 Display and Resolution of Switchable
Resolution Setting 1-2
Table 2-1 Internal Switch Settings 2-3
Table 2-2 Round-off in mm/inch Conversion 2-4
Table 3-1 Resolutions Versus Speed 3-2 Table 4-1 Standard and Displayed
Measurements Onch) 4-2
Table 4-2 Standard and Displayed
Measurements (Metric) 4-2
Table 4-3 Switch Assembly SI Settings for
Error Connectjon and Diameter
Readout Selection 4-3
Table 5-1
System Troubleshooting 5-2
This Manual is 11 Printed Pages.
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