光柵尺,電子尺,光學尺,光柵傳感器,球柵尺,球柵表,球柵顯示器,球柵計數器,尼康測量投影儀,新天輪廓投影儀,OGP光學投影儀,萬濠影像測量儀,智泰二次元,三豐工具顯微鏡,新天萬能工具顯微鏡,新天測長儀JD9,測長儀JD8
維修售后NEWALL-SA100球柵數顯表(顯示器、計數器)在本資料上方(或技術資料中)能下載帶圖的詳細說明書
維修及銷售的主要有日本富特巴(FUTEBA)、三豐(Mitutoyo)、英國新和(NEWALL)、萬濠(RATional)、怡信(Easson)、信和(Sino)、奧特嘉(oska)、朕衡(Zhen)、碩信(Soin)、必嘉(Bica)、艾莫特(AMOT)、意大利(Givi)等品牌.維修數顯表范圍:NEWALL球柵數顯表維修DP8、E70、B60、Mitutoyo三豐品牌(KACOUNTER、QM-DATA200、KLD-200、EC-100),Rational萬濠(WE6800-2、WE6800-3、WE6800E、DC3000),RSF-ELEKTRONIK,FAGOR(20I-M、30I-M),NEWALL新和(B60、E70、DP8),BICA-DRO,POWERN(PE2X、PE3X),HEIDENHAIN海德漢(ND780、ND522、ND523),NIKON尼康(DP-E1、SC2-E1、SC3-E1、QUADRA-CHEK200),CHFOIC(DRO-2M、DRO-3M、DRO-2L、DRO-2G、DRO-3E、JDS100B、DS401SM),SONY索尼(LH51、LH71、LH52、LH72),JENIX韓國東山,SUMTAK-FUTABA(FUTABA-PULSCALE、CMJ200),SINO諾信(SDS6-3V、SDS6-2V、SDS2MS),GSW-3A、GSW-3B、GSW-204、GSW-2B、GSW-2C,SOIN(SI2008-2B、SI2008-3B)
維修售后NEWALL-SA100球柵數顯表(顯示器、計數器)
- 以上品牌和型號的數顯表都能維修:數顯表被雷擊壞、接錯電壓被燒壞、數顯表顯示軸跳數,顯示軸不顯示、顯示軸精度不準、顯示軸閃爍、數顯表按鍵不靈、數顯表無信號等等。
- ----------------------- Page 1-----------------------
- N NEWALL MEASUREMENT SYSTEMS LTD
- SA100 & SA100-R Digital Readout Display
- ----------------------- Page 2-----------------------
- Contents SA100 Linear & Rotary
- Contents
- SA100 Digital - Linear & Rotary
- 1.0 Technical Specification
- 2.0 Connection
- 3.0 Installation
- 4.0 Introduction
- 4.1 Normal Operation
- 4.2 Reference Operation
- 4.3 Editing a Floating Point
- 5.0 SA100 Digital - Linear
- 5.1 Set-Up Mode
- 5.2 AR - Axis Resolution
- 5.3 DR- Displayed Resolution
- 5.4 DIR - Direction
- 5.5 FEN - Head Fail Detection
- 5.6 REF LOAD - Reference Load
- 5.7 LIN ERR - Linear Error Compensation
- 5.8 SF & SFT - Scale Factor
- 6.0 SA100 Digital - Rotary
- 6.1 Set-Up Mode
- 6.2 Set-Up Menu Structure
- 6.3 CONFIG - Automatic Calibration
- 6.4 AR - Axis Resolution
- 6.5 DR- Displayed Resolution
- 6.6 DIR - Direction
- 6.7 FEN - Head Fail Detection
- 6.8 REF LOAD - Reference Load
- 6.9 ANG ERR - Angular Error Compensation
- 6.10 G RATIO - Gear Ratio Compensation
- 6.11 ANGLE - Angle Display Mode
- 6.12 DISP - Display Mode
- 6.13 RADIUS - Table Radius Definition
- 6.14 CPR - Counts Per Revolution
- 7.0 SA100 Digital - Linear & Rotary / Appendix A
- 7.1 Use Of Auxillary Reference Input
- 1 Newall Measurement Systems
- ----------------------- Page 3-----------------------
- Technical Specification SA100 Linear & Rotary
- 1.0 TECHNICAL SPECIFICATION
- Construction: 1.5mmn sheet metal
- Dimensions:
- Height 72mm (2.835")
- Width 144mm (5.878")
- Depth 70mm (2.756")
- Weight 0.487Kg (1.07lbs)
- Operating Voltage: 12 - 27 VDC ±10%
- Supply Voltage Fluctuation: Within operating voltage range
- Maximum Power Consumption: 6 watts
- Operating Temperature: 0 to 45oC
- Storage Temperature: -20 to 60oC
- Inputs: Single channel quadrature
- Input Configuration: (See DIP switches on rear of DRO)
- ON
- Differential Encoder Input (A, /A, B, /B, RM, /RM)
- ON
- Single Ended Encoder Input (A, B, RM)
- Environmental Conditions: Indoor use, IP20
- Pollution degree 2 in accordance with IEC664
- Relative Humidity: Maximum 80% for temperatures up to 31oC
- Decreasing linearly to 33% at 45oC
- EMC Compliance: BS EN 50081-2 Electromagnetic Compatibility
- Generic Emission Standard - Industrial Environment
- BS EN 50082-2 Electromagnetic Compatibility
- Generic Immunity Standard - Industrial Environment
- Certificate No FM36096
- NEWALL MEASUREMENT SYSTEMS LIMITED RESERVES THE RIGHT TO CHANGE THE
- SPECIFICATION WITHOUT NOTICE
- Newall Measurement Systems 2
- ----------------------- Page 4-----------------------
- Connection SA100 Linear & Rotary
- CONNECTION NOTES
- 2.0 CONNECTION
- Note: For implementation
- of the remote Index facility
- Auxiliary Input and Auxiliary options see
- 15-way ‘D’ 2.5mm Power Inlet Section 7.0
- 12-27Vdc ± 10% Rating Label
- Model number DSA11000
- Encoder denotes the unit to be for
- Input Model linear measurement and
- Number
- 9-way ‘D’ display.
- Serial Number
- Model number DSA11000-R
- denotes the unit to be for
- Rotary measurement and
- display.
- An optional, external, power
- Encoder Type DIP supply unit is available.
- Switches Cable Retaining Clamp Please contact your
- All On for Differential I/P distributor for details.
- Equipotential Terminal
- For grounding to machine
- INPUTS
- Encoder Input (9-way D) Auxiliary Input (15-way D)
- Pin No. Function Pin No. Function
- 1 N/C (or 0V) 1 Reserved
- 2 Channel A 2 0V
- 3 Channel /A 3 Reserved
- 4 Channel B 4 Reserved
- 5 Channel /B 5 Reserved
- 6 0V 6 Reserved
- 7 +5V 7 +5V DC
- 8 Channel RM 8 +5V DC
- 9 Channel /RM 9 0V
- 10 Reserved
- 11 Reserved
- 12 Remote Index
- 13 Reserved
- 14 Reserved
- 15 0V
- WARNING! DO NOT CONNECT THE UNIT DIRECTLY TO THE MAINS
- POWER SUPPLY.
- 3 Newall Measurement Systems
- ----------------------- Page 5-----------------------
- Installation SA100 Linear & Rotary
- 3.0 INSTALLATION NOTES
- An opional installation kit allowing for either desk, or panel mounting is available.
- (Part Number: DSAKIT)
- Desktop or support mounting arm
- Panel Mounting
- 3 7 6 5 1 2 4 7 6
- 1
- 2
- 7 M4 S/C SPRING WASHER 2
- 3 6 M4 FLAT WASHER 2
- 5 SPACE WASHER 2
- 4 M4X 12 CAP HD SCREW 2
- 4 3 KNOB 2
- 2 BRACKET 2
- 5 1 BRACKET 1
- ITEM DESCRIPTION QTY
- 6
- 7
- Newall Measurement Systems 4
- ----------------------- Page 6-----------------------
- Introduction SA100 Linear & Rotary
- 4.0 INTRODUCTION NOTES
- The SA100 range of digital readouts, DRO, offers the very best in functional
- versatility backed by Newall's famous robustness and quality guarantee.
- Two versions are available:
- The SA100 Digital for applications where a linear displacement is to
- be measured.
- The SA100-R Digital. This DRO offers a range of functions specifically
- targeted at rotary applications, be they measured by a shaft encoder or
- a radius tape.
- Please ensure that you have the correct SA100 Digital model for your
- application.
- This manual covers both versions of the SA100. Please refer to the relevant section
- for details of operation.
- 5 Newall Measurement Systems
- ----------------------- Page 7-----------------------
- Normal Operation SA100 Linear & Rotary
- 4.1 NORMAL OPERATION NOTES
- SA100
- 1. abs Pressing [abs/inc] key toggles between absolute and incremental
- inc mode. LED's on the [abs/inc] key indicate current operating mode.
- 2. in Pressing [in/mm] key toggles between inch and millimetre mode.
- mm LED's on the [in/mm] key indicate current operating mode.
- 3. Pressing this key zeroes the current absolute or incremental
- 0
- position, as indicated by the LED's on the [abs/inc] key.
- 4. Reference To find a scale reference marker press the [0] key and, whilst held, The keypads on the
- press the [abs/inc] key. SA100 and SA100-R are
- specifically targeted at
- abs either Linear or Rotary
- 0 + inc applications.
- SA100-R
- 1. abs Pressing [abs/inc] key toggles between absolute and incremental
- inc mode. LED's on the [abs/inc] key indicate current operating mode.
- 2. A) Rollover (± 360o)
- Pressing the [angle] key toggles between positive and negative
- arcs. The LED's on the [angle] key indicates the current operating = [angle] key
- mode.
- e.g. Positive angle = ( Negative angle + 360o )
- See configuration of
- i.e. +270o ≡ -90o ANGLE in Set-Up for
- detailed information on
- Rollover and continuous
- B) Continuous count (±) operating modes.
- Pressing the [angle] key toggles between the continuous
- measured count and the radial, arc, position. i.e. the continuous
- measured position minus the number of whole 360o rotations. The
- LED's on the [angle] key indicates the current operating mode.
- = Continuous mode
- e.g. Continuous measured angle = 973o
- o o o
- i.e. Radial angle = 973 - (2 x 360 ) = 253 = Radial mode
- 3. O Pressing this key zeroes the current absolute or incremental
- 0
- position, as indicated by the LED's on the [abs/inc] key..
- o
- 4. Reference To find a scale reference marker depress the [0 ] key and,
- whilst held, press the [abs/inc] key.
- abs
- 0 See over page for detailed
- + inc
- instructions on using the
- reference function.
- Newall Measurement Systems 6
- ----------------------- Page 8-----------------------
- Reference Operation SA100 Linear & Rotary
- 4.2 REFERENCE OPERATION NOTES
- Note:This function only works with encoders that provide an index
- marker output signal. However an externally generated reference
- ! Note.
- (e.g. a limit switch) can also be used. Please refer to APPENDIX A The reference function
- for more details. works the same way on
- both the SA100 and
- This feature allows for any given axes to be referenced to a datum position. The SA100-R units.
- index marker pulse, from the encoder, is used to generate a signal that informs the
- DRO that the reader head has reached its datum position. Index pulses generally
- appear in one of two forms depending on the type of encoder connected. These can
- either be periodic, say 20mm, or single action. Generally, when a scale has a single
- action index marker this is located at the centre of travel.
- 1. Enter Reference mode using the [0] + [abs/inc] key combination.
- On the SA100-R the
- [angle] key replaces the
- 2. The display will show ' REF '. [in/mm] key.
- The SA100 will continue to show this until a reference marker is found
- or the referencing operation is aborted using the [in/mm] key.
- A) For Periodic Index pulses Tip:
- Mark the datum position on
- Position the encoder such that it lies between the datum index marker and the next the machine bed to allow
- index marker position. (Say, within +/-15mm for a 20mm index period). for this position to be locat-
- ed quickly.
- 3. Move the axis towards the datum index position. Once the index
- marker has been triggered the axis will start to count. The axis position
- is now referenced to that datum position. Both absolute and Tip:
- For best accuracy, always
- incremental axis values will be loaded with the value assigned to REF reference by approaching
- LOAD during Set-Up. This value may be positive, negative or zero. the index marker in the
- same direction.
- B) For Single Shot Index marker
- 3. Move the axis towards the datum index position. Once the index pulse
- has been triggered the axis will start to count. The axis position is now
- referenced to that datum position. Both absolute and incremental axis
- values will be loaded with the value assigned to REF LOAD during
- Set-Up. This value may be positive, negative or zero.
- Note 1: The axis will start to count from the value defined in
- Set-Up for 'REF LOAD'.
- Note 2: Refer to the encoder manual for specification
- information relating to its Index marker(s).
- Note: 3 If the operation is aborted the axis position
- (absolute or incremental) will be zeroed. i.e. any
- previous position information will be lost.
- 7 Newall Measurement Systems
- ----------------------- Page 9-----------------------
- Editing A Floating Point Value SA100 Linear & Rotary
- 4.3 EDITING A FLOATING POINT VALUE NOTES
- On entry into a parameter edit mode (by the [abs/inc] key) the existing parameter ! Note.
- value is displayed. A cursor is shown either as a flashing '_', (underscore), if the digit This facility is only used to
- position is blank or as a flashing version of the digit at the current position. enter numerical values
- during Set-Up.
- The three SA100 keys are used to edit a value as follows:
- SA100 SA100-R Description Only a digit position which
- is currently blank and
- proceeds a numeric digit
- can have a '-', minus, sign
- inserted by use of the
- [0] [0o ] Used as "ENTER" when the required value has [abs/inc] key
- been keyed in.
- [abs/inc] [abs/inc] Used to scroll the digit at the current position
- through the values: -, 0, 1…9
- [in/mm] [angle] Used to move the cursor through the numeric digits
- to be edited.
- Newall Measurement Systems 8
- ----------------------- Page 10-----------------------
- SET-UP MODE SA100 (Linear)
- NOTES
- 5.0 SA100 Digital
- LINEAR DIGITAL READOUT
- 5.1 SET-UP MODE SA100 (Linear)
- Entry into Set-Up mode is achieved by holding down the [abs/inc] key during nor- 'Tip .
- mal operation and then pressing the [in/mm] key momentarily. Check that the [in/mm]
- keys LED's are in the
- desired mode prior to
- Once in SET-UP mode the following menu items are accessible: entering Set-Up. The unit of
- measurement (inch or mm)
- To move through the available Set-Up options press the [in/mm] key. used during Set-Up is
- defined by the current
- operating display mode.
- SET-UP Press the [0] key to save changes and exit Set-Up
- AR Axis resolution
- Toggle through available options using the [abs/inc] key
- DR Display resolution (mm)
- Toggle through available options using [abs/inc] key
- DIR Direction (0 or 1)
- Toggle using [abs/inc] key to change sense of direction
- FEN Fail Enable (ON or OFF)
- Toggle using [abs/inc] key (OFF = Ignore, ON = Sensor fail
- detected)
- REF LOAD Axis Load value used during referencing operation.
- Pressing [abs/inc] key allows editing.
- LIN ERR Linear Error Comp (0.900000 to 1.100000).
- Pressing [abs/inc] key allows editing.
- SF Scale Factor (0.001 to 99999.999).
- Pressing [abs/inc] key allows editing.
- SFT Scale Factor Type (0 or 1)
- Toggle using [abs/inc] key (0 = Multiply, 1 = Divide)
- When the parameters have been configured, return to the SET-UP menu item and
- press [0] to return to normal operation mode.
- 9 Newall Measurement Systems
- ----------------------- Page 11-----------------------
- AR - Axis Resolution / DR - Displayed Resolution SA100 (Linear)
- 5.2 AR - AXIS RESOLUTION NOTES
- Axis resolution is the distance moved between successive encoder output edges. Tip .
- The status of the [in/mm]
- Example: key on entry in to Set-Up
- A 5-micron resolution would be derived from an encoder having a 20-micron period. determines the mode of
- data entry, Inch or mm.
- i.e. a times four multiplier will be applied.
- 20 microns
- X1 X3
- A
- X2 X4
- B
- 5 microns
- Procedure:
- From Set-Up select ’AR'.
- Use the [abs/inc] key to toggle through the available axis resolutions.
- 5.3 DR - DISPLAYED RESOLUTION
- The displayed resolution does not have to coincide with the selected Axis Resolution.
- It can not however be selected to be of a higher resolution than that defined for
- Axis Resolution.
- Procedure:
- From Set-Up select 'DR'.
- Use the [abs/inc] key to toggle through the available display
- resolutions.
- Example:
- If the Axis Resolution is set to 1 micron.
- Using the [abs/inc] key to toggles through 0.001, 0.002, 0.005 and 0.01.
- Consequently, the displayed resolution can be selected to be 1, 2, 5 or 10 microns.
- Newall Measurement Systems 10
- ----------------------- Page 12-----------------------
- DIR - Direction / FEN - Head Fail Detection SA100 (Linear)
- 5.4 DIR - DIRECTION NOTES
- Direction allows the operator to change the positive direction of travel of the reader
- head.
- Procedure:
- From Set-Up select 'DIR'.
- Use the [abs/inc] key to toggle the setting value between 0 and 1.
- Example:
- If the current setting is 0 and the travel is positive from right to left then changing
- the setting to 1 will reverse the direction to measure positive from left to right.
- 5.5 FEN - HEAD FAIL DETECTION ! Note.
- Please check encoder
- specification for information
- The SA100 has the facility to detect if the attached encoder has become discon- on the synchronisation of
- nected, sustained severe cable damage or with some encoders, electronic failure. the index marker pulse. If
- the encoder is capable of
- generating the illegal
- Mode of Operation condition (A low, B low and
- The detection mechanism monitors the incoming signals from the encoder to look RM high) then the automat-
- for an illegal combination of input levels. ic head failure detection
- should be TURNED OFF.
- A B RM Status
- ! Note.
- L L H SIG FAIL The reference function can
- L H X OK still be implemented even
- with the head fail detect
- H L X OK capability turned OFF
- X X L OK
- X = don't care state i.e. can be either High (H) or Low (L).
- If the signal fails or the encoder becomes disconnected, then the illegal input combi-
- nation is generated internally within the SA100. The display will then show 'SIG
- FAIL'. If you are able to correct the fault then pressing the [0] key will reset the
- display. If the 'SIG FAIL' message continues to be displayed after pressing the [0]
- key then the fault has not been corrected.
- Disabling the Head Failure Detection
- Procedure:
- From Set-Up select 'FEN'.
- Use the [abs/inc] key to toggle the setting value between
- OFF (disable) and ON (enable).
- 11 Newall Measurement Systems
- ----------------------- Page 13-----------------------
- REF LOAD - Reference Load SA100 (Linear)
- 5.6 REF LOAD - REFERENCE LOAD NOTES
- This function allows for a pre-programmed value to be loaded into the axis counter,
- as a start value, when the 'Reference' function is implemented.
- Procedure:
- From Set-Up select 'REF LOAD'.
- Use the [abs/inc] and [in/mm] keys to enter the desired Reference
- load value, as described earlier.
- Example:
- The 'DIR' value in Set-Up
- The SA100 is configured with a 1m travel, linear scale with a single reference, index, would also need to be set
- marker located at its centre. The operator wishes to set the datum, zero point, to the to give a +ve direction for
- leftmost end of the scale. left to right movement, in
- this example.
- Scale length = 1000mm
- Index marker located mid scale = 500mm
- Hence, REF LOAD = 500
- Newall Measurement Systems 12
- ----------------------- Page 14-----------------------
- LIN ERR - Linear Error Compensation SA100 (Linear)
- 5.7 LIN ERR - LINEAR ERROR COMPENSATION NOTES
- Linear Error Compensation allows the operator to apply a constant correction factor
- to the axis measurement before it is displayed. Linear error may occur if the axis of
- the machine is not perfectly parallel to the scale (cosine error) or if the machine is
- moving in an arc (Abbè errors). The cause of this may be:
- Machine wear
- ! Note.
- Deflection of the machine due to an uneven weight The further away the scale
- is mounted from the centre
- Misalignment of the scale due to poor installation line of the workpiece, the
- greater is the potential for
- linear errors to occur.
- The Linear Error Compensation Factor is expressed as a multiplier, (0.900000 to
- 1.100000), that is applied to the measured distance prior being displayed. A factor of
- 1.000000 indicates that no compensation is being applied.
- i.e. Measured distance x 1.000000 = Measured distance
- In order to calculate the required Compensation Factor, from normal operation with
- no compensation applied:
- Procedure:
- Move the machine to the zero position of the standard against which
- the axis is to be compared.
- ! Note.
- All measurements will be
- Zero the display using the [0] key. adjusted, multiplied,
- according to the
- Move the machine a known distance as defined by the standard and Compensation Factor
- entered. To disable this
- record the measured distance as displayed on the SA100. facility enter a Linear Error
- Compensation Factor of
- Calculate the Compensation Factor using: 1.000000
- True or standard distance moved
- Compensation Factor = Measured Distance
- Enter Set-Up and select 'LIN ERR'
- Enter the calculated Compensation Factor as described previously
- 13 Newall Measurement Systems
- ----------------------- Page 15-----------------------
- SF & SFT - Scale Factor SA100 (Linear)
- 5.8 SF & SFT - SCALE FACTOR NOTES
- Ignoring all offsets and rounding to display resolution, the displayed value on the
- SA100 (millimetre mode) is a result of the following calculation:
- If SFT (Scale Factor Type) = 0
- DISTANCE = EDGE_COUNT * AXIS_RESOLUTION * LINEAR_COMP * SCALE_FAC-
- TOR
- If SFT (Scale Factor Type) = 1
- DISTANCE = EDGE_COUNT * AXIS_RESOLUTION * LINEAR_COMP / SCALE_FAC-
- TOR
- Where:
- EDGE_COUNT = number of edges from encoder from zero position
- AXIS_RESOLUTION = 0.0001, 0.0002, 0.0005, 0.001, 0.002, 0.005 or 0.01 mm
- ! Note.
- In inch mode DISTANCE is
- LINEAR_COMP = error compensation factor in range 0.900000 to 1.100000 further divided by 25.4 as
- (Default = 1.000000) there are exactly 25.4mm to
- one Inch.
- SCALE_FACTOR = 0.001 to 99999.999
- (Default = 1.000)
- Example:
- A linear encoder is connected to a RAM that is being used to pump measured
- amounts of a fluid. The diameter of the RAM is 10cm and the display is required to
- show how many litres of fluid are being displaced for a given stroke. ! Important
- Where: For this example, the
- π x D2 x Stroke π = 3.14159 display is only valid if it
- Working in mm mode: D is the RAM diameter remains in mm mode. If
- 4
- in mm Stroke is in mm switched to Inch mode the
- Volume displaced (mm3) = value displayed will be
- meaningless!
- 3 3
- Recalling that there are 1000cm , (≡ 1,000,000mm ), in 1 litre (SI definition) gives:-
- π x D2 x Stroke π x 10,000
- 4 x 1,000,000 4,000,000
- Scale Factor (to show Litres) = =
- Scale Factor (to show Litres) = 0.00785
- This is very small and close to the 3dp limit for an applied Scale Factor. Consequently,
- instead of multiplying by such a small factor we can divide by its inverse. ! Note:
- SF entry is limited to
- 1
- Scale Factor (to show Litres) = = 127.324 3 decimal places and as
- 0.00785 such any value must be
- rounded accordingly.
- The Scale Factor Type (SFT) is 1 as the value calculated is to act as a divisor.
- i.e. The display will show (S / 127.324) (where S = measured
- distance/stroke in mm)
- Newall Measurement Systems 14
- ----------------------- Page 16-----------------------
- Set-Up Mode SA100-R (Rotary)
- NOTES
- 6.0 SA100- R Digital
- ROTARY DIGITAL READOUT
- 6.1 SET-UP MODE SA100-R (Rotary)
- ! Note.
- Entry into Set-Up mode is achieved by holding down the [abs/inc] key during normal All displacement
- measurements are in
- operation and then pressing the [angle] key momentarily. metric (mm).
- Once in SET-UP mode the following menu items are accessible:
- To move through the available Set-Up options press the [angle] key.
- Tip.
- SET UP-R Press the [0o ] key to save changes and exit Set-Up. If the output rate of the
- encoder is unknown or has
- complex gearing select
- AUTO . This will enable the
- TYP Alter using [abs/inc] key to select between AUTO, TAPE or ROTY automated calibration soft-
- ware routines.
- CONFIG Used self calibrate system and automatically set some system
- parameters. Only appears for type AUTO
- AR Axis resolution (mm). Only appears for type TAPE
- Toggle through options (0.0001 through 0.01) using [abs/inc] key.
- Menu structure shown in
- CPR Counts per revolution. Only appears for type ROTY Figure 1, over page.
- Pressing [abs/inc] key allows editing.
- DR Display resolution in decimal places.
- Toggle through options (0.0001 through 0.01) ) using [abs/inc] key.
- ! Note.
- DIR Direction (0 or 1). When the parameters have
- been configured, return to
- Toggle using [abs/inc] key to change sense of direction. the SET-UP-R menu item
- and press [0o] to return to
- FEN Fail Enable (ON or OFF). normal operation mode.
- Toggle using [abs/inc] key (OFF = Ignore, ON = Sensor fail
- detected).
- REF LOAD Axis Load value used during REF operation.
- Pressing [abs/inc] key allows editing.
- ANGLE Set mode of display (CT or RL)
- Toggle using [abs/inc] key (CT - Continuous, RL = ±360° Rollover)
- DISP Set unit mode of display (-.-.- or DEC).
- Toggle using [abs/inc] key (DEC = Decimal Degrees, -.-.-DMS).
- RADIUS Load value (mm) used in calculation of angle when in angle mode.
- Pressing [abs/inc] key allows editing. Only appears for type tape
- ANG ERR Angular Error Comp (0.900000 to 1.100000).
- Pressing [abs/inc] key allows editing. Only appears for type tape
- G RATIO Gear Ratio (0.001 to 99999.999). Only appears for type ROTY
- Pressing [abs/inc] key allows editing
- 15 Newall Measurement Systems
- ----------------------- Page 17-----------------------
- Set-Up Menu Structure SA100-R SA100-R (Rotary)
- 6.2 SET-UP MENU STRUCTURE SA100-R NOTES
- SETUP- R
- TYP
- ! Note.
- AUTO TAPE ROTY Depending on the
- selections for TYPE the
- structure of the menu varies
- CONFIG AR CPR
- SET 0 0.00001 to 0.01 0 to 99999990
- SET +-360O
- DR
- 0.0001 to 0.01
- DIR
- These menu items are
- 0 / 1
- common to all 3 types
- AUTO,TAPE & ROTY
- FEN
- On/Off
- REF LOAD
- 0 - ±360O
- ANGLE
- CT/RL
- DISP
- DEC / -.-.-
- TAPE
- AUTO ROTY
- G.RATIO
- RADIUS
- 0.001 to 999.9999
- 0.001 to 999999.999
- ANG.ERR
- 0.900000 to 1.10000
- Figure 1. Set-Up Menu Structure
- Newall Measurement Systems 16
- ----------------------- Page 18-----------------------
- CONFIG - Automatic Calibration SA100-R (Rotary)
- 6.3 CONFIG - AUTOMATIC CALIBRATION NOTES
- This feature allows systems to be configured even when fundamental elements of the
- system are unknown.
- CONFIG will automatically allow for systems where:
- Axis resolution This procedure effectively
- calculates a multiplier to
- be applied to the counts,
- Rotary of angular movement measured during the
- movement through the
- Counts per revolution standard angle, such that
- the displayed angle is
- exactly that of the standard.
- Gearing
- Table radius
- …are unknown, to be accuray configured.
- Procedure:
- From 'TYPE ' select 'AUTO '
- Display will show ' CONFIG'
- Press the [abs/inc] key to enter automated calibration ! Note.
- This function works for both
- angular and rotary encoder
- Display will show ' SET 0'. types and recommended
- where complex gearing may
- Move the rotary table to a datum, position. be involved.
- Press any key
- The display will change to ‘ANGLE
- Press any key to edit the default value of 90 degrees, [0] to enter)
- Move the rotary table a known, standard, angle (e.g. 90o)
- This display will show (e.g.) ‘SET 90’
- Press any key
- The display will show either ‘CAL PASS’ or ‘CAL FAIL’
- Press any key
- This display will return to ‘CONFIG’
- If calibration was succesful move onto the next item ‘DR’ using the
- [angle] key to repeat the ‘CONFIG’ process using [abs/inc] key.
- The automatic calibration procedure is now complete. Set the remaining user
- parameters as defined in the menu structure.
- 17 Newall Measurement Systems
- ----------------------- Page 19-----------------------
- AR - Axis Resolution / DR Displayed Resolution SA100-R (Rotary)
- 6.4 AR - AXIS RESOLUTION NOTES
- Axis resolution is the distance moved between successive encoder output edges.
- Example:
- A 5-micron resolution would be derived from an encoder having a 20-micron period.
- i.e. a 4 times four multiplier will be applied. ! Note.
- AR is only required during
- 20 microns manual configuration of a
- non-rotary encoder.
- ! Note.
- X1 X3 All Newall Digital DRO
- cabinets apply a x4
- multiplier by default.
- A
- X2 X4
- B
- 5 microns
- Procedure:
- From Set-Up select 'AR'.
- Use the [abs/inc] key to toggle through the available axis resolutions.
- 6.5 DR - DISPLAYED RESOLUTION
- The setting defines the decimal places to which an angular position is displayed.
- When in DMS display mode
- Procedure:
- (see DISP) a decimal point
- is used to separate the
- From Set-Up select 'DR'. Degrees from the Minutes
- from the seconds.
- Use the [abs/inc] key to toggle through the options
- ( 0.0001 through to 0.01 )
- Example 1: Decimal Degrees
- The DR setting defines the decimal places and rounding to which the angular
- position will be displayed if decimal degrees are being displayed
- e.g. DR =0.002 True angle = 247.3477
- Displayed value = 247.348
- Note: If DEGREES . MINUTES . SECONDS are being displayed then no rounding
- occurs.
- Newall Measurement Systems 18
- ----------------------- Page 20-----------------------
- DIR - Direction / FEN - Head Fail Detection SA100-R (Rotary)
- 6.6 DIR - DIRECTION NOTES
- Direction allows the operator to change the positive direction of travel of the reader
- head.
- Procedure:
- From Set-Up select 'DIR'.
- Use the [abs/inc] key to toggle the setting value between 0 and 1.
- Example:
- If the current setting is 0and the travel is clockwise from right to left then changing
- the setting to 1 will reverse the direction to measure clockwise from left to right.
- 6.7 FEN - HEAD FAIL DETECTION Please check encoder
- specification for information
- on the synchronisation of
- The SA100-R has the facility to detect if the attached encoder has become discon- the index marker pulse. If
- nected, sustained severe cable damage or with some encoders, electronic failure. the encoder is capable of
- generating the illegal
- condition (A low, B low and
- Mode of Operation RM high) then the automat-
- The detection mechanism monitors the incoming signals from the encoder to look ic head failure detection
- for an illegal combination of input levels. should be TURNED OFF.
- A B RM STATUS
- L L H SIG FAIL
- L H X OK
- H L X OK
- X X L OK
- ! Note.
- X = don't care state i.e. can be either High (H) or Low (L). The reference function can
- still be implemented even
- If the signal fails or the encoder becomes disconnected, then the illegal input combi- with the head fail detect
- nation is generated internally within the SA100. The display will then show 'SIG capability turned OFF.
- FAIL'. If you are able to correct the fault then pressing the [0] key will reset the
- display. If the 'SIG FAIL' message continues to be displayed after pressing the [0]
- key then the fault has not been corrected.
- Disabling the Head Failure Detection
- Procedure:
- From Set-Up select 'FEN'.
- Use the [abs/inc] key to toggle the setting value between
- OFF (disable) and ON (enable).
- 19 Newall Measurement Systems
- ----------------------- Page 21-----------------------
- REF LOAD - Reference Load SA100-R (Rotary)
- 6.8 REF LOAD - REFERENCE LOAD NOTES
- This function allows for a pre-programmed value to be loaded into the axis counter,
- as a start value, when the 'Reference' function is implemented.
- Procedure:
- From Set-Up select 'REF LOAD'
- Use the [abs/inc] and [angle] keys to enter the desired Reference
- load value, as described earlier.
- Example:
- The SA100-R is configured with an encoder on a rotary indexing table capable of
- o o
- describing a 180 arc and has an index marker at 90 . The operator wishes to set the
- o
- display to read 90 , not zero, when referencing the system.
- Hence,
- REF LOAD = 90.0000 (in decimal degrees)
- Newall Measurement Systems 20
- ----------------------- Page 22-----------------------
- ANG ERR - Angular Error Compensation SA100-R (Rotary)
- 6.9 ANG ERR - ANGULAR ERROR COMPENSATION NOTES
- Angular Error Compensation allows the operator to apply a constant correction factor ! Note.
- to the axis measurement before it is displayed. The function is applied when it is not Although this feature is
- provided to give set-up
- possible to accuray measure the radius of the rotary table when configuring the flexibility, where the radius
- system manually. of the rotary system is not
- accuray known it is
- The Angular Error Compensation Factor is expressed as a multiplier, (0.900000 to advised that the Auto
- calibration option be
- 1.100000), that is applied to the measured distance prior to being displayed. A factor implemented to configure
- of 1.000000 indicates that no compensation is being applied. the system.
- i.e. Measured Angle x 1.000000 = Measured Angle
- In order to calculate the required compensation factor, from normal operation with no ! Note.
- compensation applied: All measurements will
- be adjusted, multiplied,
- Procedure: according to the
- Compensation Factor
- entered. To disable this
- Move the machine to the zero position of the standard against which facility enter a Linear Error
- the axis is to be compared (90o square for example). Compensation Factor of
- 1.000000.
- Zero the display using the [0o ] key.
- Move the machine through a known arc, as defined by the standard,
- and record the measured angle as displayed on the SA100-R.
- Calculate the Compensation Factor using:
- True or standard arc moved
- Compensation Factor =
- Measured arc
- Enter Set-Up and select 'ANG ERR'
- Enter the calculated Compensation Factor as described previously
- 21 Newall Measurement Systems
- ----------------------- Page 23-----------------------
- G.RATIO - Gear Ratio Compensation / ANGLE - Angle Display Mode
- 6.10 G. RATIO - GEAR RATIO COMPENSATION NOTES
- Gear Ratio Compensation allows for systems where gearing occurs after the point at
- which the angular position can be measured.
- ! Note.
- Although this feature is
- A factor of 1.000 indicates that no gearing compensation is being applied. provided to give set-up
- flexibility, where the radius
- i.e. Measured Angle x 1.000 = Measured Angle of the rotary system is not
- accuray known it is
- advised that the Auto
- Example : calibration option be
- implemented to configure
- A system consists of a rotary shaft encoder coupled to a rotary table providing gear- the system.
- ing of 1 to 2. In order to display the table angle the G.RATIO must be similarly
- defined.
- ! Note.
- All measurements will
- Gear Ratio = 1:2 be adjusted, multiplied,
- according to the Gear ratio
- factor entered. To disable
- this facility a G.RATIO
- Rotary Table of 1.000 must be entered.
- Encoder Angle
- i.e. Table angle = ½ that measure at the encoder.
- Hence:
- G.RATIO = 0.500
- 6.11 ANGLE - ANGLE DISPLAY MODE
- Angle allows the operator to define if the display is to rollover at 360o back to zero or
- to give a continuous measurement.
- Procedure:
- From Set-Up select 'ANGLE'
- Use the [abs/inc] key to toggle the setting value between
- CT (continuous) and RL (360o rollover)
- Example:
- ANGLE MODE
- True angle CT RL
- 650o 650o 290o
- -720o -720o 0o
- Newall Measurement Systems 22
- ----------------------- Page 24-----------------------
- DISP - Display Mode SA100-R Rotary)
- 6.12 DISP - DISPLAY MODE NOTES
- This option allows the operator to select what mode of angular position the
- SA100-R is to display. The two options are Decimal Degrees (DD) and
- Degrees-Minutes-Seconds (DMS). ! Note.
- When in DMS mode degrees
- minutes and
- DISP seconds are delimited by
- a decimal point.
- Display type DMS DD
- -.-.- DEC
- Resolution(max) 1 second As set byDR
- Example 45.32.12 72.3421
- 6.13 RADIUS - TABLE RADIUS DEFINITION
- This function allows for the entry of the radius of the rotary table to be entered, when
- angular positions are to be measured and displayed. (For Tape mode only).
- Tip.
- If after entering this value
- Procedure:
- the displayed angle is
- not * correct use
- From Set-Up select 'RADIUS'. the Angular Error
- Compensation facility
- to adjust the value
- Use the [abs/inc] and [angle] keys to enter the table radius, as accordingly.
- described earlier.
- The angle displayed is calculated from the distance moved along the ARC
- (circumference) and the radius as follows:
- Angleo = Distance x 360o
- 2 x ππ x Radius
- (ROTARY ENCODERS)
- 6.14 CPR - COUNTS PER REVOLUTION
- ! Note.
- This function allows for the implementation of Rotary shaft encoders. This type of The option is only
- encoder is generally in the form of a rotating disc. available when TYPE
- is ROTY
- The CPR refers to the number of counts, or edges, that the encoder will give for a
- single revolution. Care should be taken in the same way as with the setting of Axis Tip
- resolution as the SA100-R automatically applies a x4 multiplier to the quadrature-input If the CPR is unknown
- then select AUTO for
- signals. automated
- calibration and Set-Up.
- The information on the counts per revolution can be found in the encoder
- manufactures specification and is also generally marked on the encoder itself.
- Procedure:
- From Set-Up select 'CPR'.
- Use the [abs/inc] and [angle] keys to enter the CPR, as
- described earlier.
- 23 Newall Measurement Systems
- ----------------------- Page 25-----------------------
- (Appendix A) SA100 & SA100 -R
- 7.0 USE OF AUXILLARY REFERENCE INPUT
- Sometimes it may be desirable to use an auxillary reference marker i.e. one not inte-
- grated within an encoder. This could be a precision microswitch at one extreme of
- travel. With the SA100 (or SA100-R) it is possible to use such a remote switch
- contact to provide a reference pulse. The wiring arrangement required for this is
- shown below in Figure 1.
- Figure 1.
- It is important that any reference signals (if any) generated by the encoder are not
- connected to the 9 way encoder input. Instead a remote normally closed switch is
- wired between pins 2 and 12 of the 15 way auxillary connector.
- 5 volt DC power is also available on the 15 way auxillary connector :
- · Pins 2,9 & 15 on the 15 way are 0V
- · Pins 7,8 on the 15 way are +5V DC(max 100mA)
- This 5 volt power can be used to power some solid state limit/proximity switches.
- However, any device added must replicate the action of a normally closed contact.
- For this reason simple mechanical switches are recommended. The following
- schematic shows the index input circuit to aid the selection of a proximity switch,
- should solid state interfacing be required. The Index(+) input should be normally be
- held below 2.5 volts. When it rises above this an the index signal is detected. Note
- maximum input voltages are as per RS422 specifications.
- Using the arrangement outlined above does not provide any synchronisation between
- the encoder A/B signals and the auxillary reference input. One consequence of this is
- that the sensor fail detection of the SA100 must be disabled (FEN = OFF) since the
- A/B/INDEX fail condition could exist whenever an asynchronous reference pulse
- occurs.
- Newall Measurement Systems 24
- ----------------------- Page 26-----------------------
- Troubleshooting / Cleaning / Disposal SA100 Linear & Rotary
- 8.0 TROUBLESHOOTING NOTES
- See Section 1.0 for power
- source specification
- SYMPTOM SOLUTIONS
- Nothing happens when the Check unit is correctly connected to a working
- unit is switched power source.
- Check the power lead is not damaged.
- The unit is working but shows This suggests a poor earth (ground) connec-
- erratic readings. tion. Ensure the earth (ground) connection
- is installed.
- Ensure that the DIP switch settings at the rear Tip!
- of the unit are correctly set for the encoder When configuring a
- type, single-ended or differential. SA100-R, where possible
- See Section 1.0. use the automatic
- calibration option.
- The 'SIG FAIL' message is displayed. There are two possible explanations for this
- message.
- 1. Check that the encoder connection is good
- and that the encoder cable has not been
- damaged.
- 2. The encoder reference marker (index)
- signal is not synchronised to the AB true
- (high) signal levels. See Sections 5.5 and 6.7
- (depending on model).
- The displayed measurement is not There are four possible explanations for this
- correct. effect.
- 1. An incorrect encoder Axis Resolution (AR)
- has been selected. See Section 5.2 or 6.4
- (depending on model).
- 2. An incorrect Linear Error (LIN ERR) has
- been entered (SA100 Linear only).
- See Section 5.7.
- 3. An incorrect Angular Error (ANG ERR) has
- been entered (SA100-R only).
- See Section 6.9.
- 4. An incorrect Scaling Factor (SF) has been
- selected.
- See Section 5.8 (SA100 Linear only).
- The unit appears to count in the wrong Check the Direction configuration setting
- 'DIR' direction in Set-Up. See Section 5.4 or 6.6
- (depending on model).
- 8.0 CLEANING
- Disconnect the unit from the power supply before cleaning.
- It is recommended that the unit be wiped over with a lint free cloth with a non cor-
- rosive/abrasive cleaning fluid.
- Do not use compressed air.
- 25 Newall Measurement Systems