Easson ES-12 Installation manual

Always Committed to Quality, Technology & Innovation
ES-12 Digital Readout System
Operation Manual

Content
1. Basic Functions ............................... 01
2. Built in Calculator ........................... 08
3. 199 Sub Datum Function ................ 12
4. REF Datum Memory ........................ 20
5. LHOLE Function .............................. 24
6. INCL Function ................................. 28
7. PCD Function .................................. 33
8. ARC Function .................................. 38
9. Simplified R Function ..................... 56
10. Shrinkage Calculation Function .... 66
11. Lathe Application Supplement ...... A.1
12. Parameters Setup ......................... B.1
13. Scale Installation Manual............... C.1
Safety Notice
Installation
....................................I
Specifications...................................II
.......................................II
Notice: We will revise this manual's content according to the improvement of our products, so please refer to attached disk.
Thanks for your patronage and please pay attention to any change.

Warning and key points
Install the display with double-
screw bolt and fix it on a stable
position, or the display will
decline and be damaged, even
catch fire.
Do not put the display near water or
oil etc, or it will be at the risk of
catching fire.
Do not use damaged power patch plug
and put the power cable near the heat
sources, or it will evoke electric shock
or fire.
Put the display on balanced plane, or
it will decline even to be damaged.
Ensure the power plug is in good
grounding before installation, or it may
evoke electric shock or fire.
Do not use the display in the direct
sunlight, and keep it away from heat
source such as heater or baker, or the
display may catch fire.
Do not use the display in rainstorm or
thunder days, and pull out the power
plug.
Do not parallel excessive slots and connect
overfull plugs in a socket together, or it
will catch fire due to overmuch power-
dissipation.
Do not disassemble the display by yourself,
if there is any fault, ask the professional for
help to repair it. If you dismantle it by
yourself, it may cause electric shock or fire.
Make sure the plug is in good
electric contact, because the faulty
contact will cause fire.
Pull out the power plug before washing
with soft rag, do not use industrial
chemical pharmaceuticals. And keep
water outside of the display.
During rainstorm or thunder, please switch
off the power, or it will evoke electric
shock or fire.
Do not use the plug when your
hands are wet, or it will cause
electric shock.
If the plug or input cable is dirty, clean
them immediately, or it will cause electric
shock or fire when you use them.
If you don't use the display during a long
period , please cut off the power, or it will
cause electric shock or fire.
Switch off the power immediately
and ask for repairing if there is
awful odour or abnormal sound.
Do not use or store combustibles nearby
the display, or it will evoke explosion or
fire.
Read the notice above before installation. The product has to
be installed by professionals.
CTND

ATTENTION: To avoid possible Electrical Shock !! The DRO's
grounding to the earth terminal
of a power socket / source which protected by an
Earth Leakage Circuit Breaker.
must be connected
** Install the Power Grounding as per shown in following diagrams. **
** VERY IMPORTANT : SAFETY NOTICE **

1.1 SPECIFICATIONS :
Operation Voltage: 115 / 230V AC
Supply Voltage Fluctuation: Not to exceed +10% of the operating voltage
Supply Frequency 50 - 60Hz
Max Power Consumption 20 VA
Operating Temperature 0 'C - 45 'C 32 'F - 113 'F
Operating Relative Humidity <=95% (45 'C + 2 'C )
Storage Temperature -40 'C - 55 'C -40 'F - 131 'F
Storage Relative Humidity <=95% (45 'C + 2 'C)
Inputs: Depend on model, 2, 3 or 4 Linear Transducers
** we reserve the right to change the specifications as listed in above without any prior notice. **
2.1 MOUNTING
Select the location of the installation with due regard of safety and ease of operation. Keep the DRO
away of moving parts and coolant spray. To ensure correct operation of the DRO , make sure that the
DRO is correct grounding. Grounding diagram is as shown in SAFETY NOTICE.
The DRO can be mounted on 4 different arm stand brackets as per detailed on the Optional Accessories List.
As shown in Figure 2.1:
Figure 2.1 Mounting of the DRO
II
SPECIFICATIONS
MOUNTING & INSTALLATION
The DRO have been to conforms to relevant standards for electromagnetic compatibility ( EMC ) as detailed
below.
IEC 61000-6-2 : Electromagnetic compatibility, Generic Immunity Standard - Industrial Environment.
IEC 61000-6-4 : Electromagnetic compatibility, Generic Emission Standard - Industrial Environment.
EN 61000-6-2 : Electromagnetic compatibility, Generic Immunity Standard - Industrial Environment.
EN 61000-6-4 : Electromagnetic compatibility, Generic Emission Standard - Industrial Environment.
GB/T 17799-2 : Electromagnetic compatibility, Generic Immunity Standard - Industrial Environment.
GB/T 17799-4 : Electromagnetic compatibility, Generic Emission Standard - Industrial Environment.
EMC compliance
Double Joint
Arm Stand
( 3.BR.05.0034 )
3.BR.05.0031
Lathe Top Headstock
Arm Stand
( )
Standard Lathe
Headstock Arm Stand
( )3.BR.05.0026
Standard Single Joint
Arm Stand
( 3.BR.05.0001 )

2.2 POWER SUPPLY CONNECTION
Before connecting the electrical supply to the DRO, please check the VOLTAGE SELECTOR switch to
see if correctly main supply voltage selected or not. Check Figure below for the position of the switch.
The PROTECTIVE EARTH CIRCUIT of the mains supply MUST BE CONNECTED to the earth grounding terminal
of the DRO through the supply cord and connected through an earth cable as per shown in Page 1.
The supply cord must be secured with cable ties to avoid from dropping into a hazardous position, for example
the floor or coolant tray, when disconnected from the DRO.
The supply cord must be routed away from moving parts, swarf, coolant or sources of heat.
III
POWER SUPPLY CONNECTION
If a mains plug is not already fitted to the supply cord or is of the wrong type, then a suitable EARTHED plug
should be used which complies with the relevant specifications for plugs and socket-outlets.
The specification of the mains supply fuse is T0.5A, 220V. It can not be replaced by operator. If the fuse blows
it is a possible indication of some significant problem with the power source.
Check the supply and wiring carefully. When replacing the fuse, the DRO must be first disconnected by removal
of the IEC socket from the inlet. For this connector is the primary disconnect device, do not place the DRO in the
place where is difficult to reach and make sure that the plug must be accessible all the time.
NOTE: 1. If the DRO is used in a manner not specified by the manufacturer, the protection provided
by the equipment may be impaired.
2. Non-professionals do NOT open the cover or repair
check if correct main
supply voltage is selected
Earth Grounding Terminal
Transducer Connectors
Power Switch
Figure 2.3
Grounding Terminal
X
Fuse
Power Switch
Input Connectors
Voltage Switch
Main Power
YZ

2.3 LINEAR TRANSDUCER CONNECTION
Connection sockets as shown in Figure 2.3. The transducers are connected to the DRO with 9-pin DB
Type connectors.
Switch off the DRO before connecting or disconnecting the linear transducers. To fit the connectors
into the appropriate socket on the back of the DRO, first align the connector and then push firmly in place.
And secure with the screws. To remove the connectors, loosen the screws and pull the connector clear.
2.4 SWITCHING ON
Find the power switch as shown in Figure 2.3.
When the operators switch on the DRO, the DRO will automatically go through a brief self diagnostic routine.
IV
LINEAR TRANSDUCER CONNECTION

- 1 -
Basic Fucntions
Basic Functions
BASIC

- 2 -
Basic Functions - Set display to ZERO
Example 2 : Currently in Metric display, to swap to Inch display
Purpose : Set the current position for that axis to ZERO
Example : To set the current X axis position to ZERO
Purpose : Switches between Inch and Metric display
Example 1 : Currently in Inch display, to swap to Metric display
Inch / Metric display conversion
X
Y
Z
X
Y
Z
ABS ABS
mm mm
mm mm
mm mm
12.345
25.000 25.000
0.000
X
Y
Z
ABS
mm
mm
mm
1.0000
2.0000
3.0000
X
Y
Z
ABS
mm
mm
mm
1.0000
2.0000
3.0000
X
Y
Z
ABS
mm
mm
mm
25.400
50.800
76.200
X
Y
Z
ABS
mm
mm
mm
25.400
50.800
76.200
Enter Dimensions
Purpose : Set the current position for that axis to an entered dimension
Example : To set the current X axis poition to 45.800mm
X
Y
Z
ABS
mm
mm
mm
0.000
0.000
0.000
X
Y
Z
ABS
mm
mm
mm
0.000
0.000
45.800

X
Y
Z
ABS
mm
mm
mm
-34.560
0.000
0.000
- 3 -
Basic Functions - Centre Find
Purpose : ES-12 provides centre find function by halfing the current display coordinate, so that the zero
position of the work piece is located at the centre of the work piece.
Example : To set the current X axis zero position at the centre of the work piece
Step 1 : Locate the edge finder at one end of the work piece, then zero the X axis.
Step 2 : Located the edge finder at the opposite
end of the work piece.
X
Y
Z
ABS
mm
mm
mm
0.000
0.000
0.000
X
Y
Z
ABS
mm
mm
mm
0.000
0.000
78.480
X
Y
Z
ABS
mm
mm
mm
78.480
0.000
0.000
Step 3 : Then half the display coordinate using centre find function as per follows
X
Y
Z
ABS
mm
mm
mm
39.240
0.000
0.000
Now the X axis zero position ( 0.000 ) is located right at the X centre of the work piece
X
Y
Z
ABS
mm
mm
mm
0.000
0.000
0.000

- 4 -
Basic Functions - ABS/INC coordinate display
Purpose : ES-12 provides two sets of basic coordinate display, they are ABS ( absolute ) and INC ( incremental )
displays.
During machining operations, operator can store the work piece datum ( ZERO position ) in ABS
coordinate, then switch to INC coordinate to continue machining operations
Then the operator is free to zero the axes or preset any dimensions into any axis in INC coordinate
for any relative position machining. The work piece datum ( work piece ZERO position ) is still keep
in ABS coordinate of the DRO.
Operator can switchs between ABS ( absolute ) and INC ( incremental ) coordinate without losing
the work piece datum ( work piece zero position ).
Example 1 : Currently in ABS display coordinate, to switch to INC display coordinate
X
Y
Z
ABS
mm
mm
mm
56.785
0.000
0.000
X
Y
Z
ABS
mm
mm
mm
56.785
0.000
0.000
X
Y
Z
INC
mm
mm
mm
0.000
0.000
42.635
X
Y
Z
INC
mm
mm
mm
0.000
0.000
42.635
Example 2 : Currently in INC display coordinate, to switch to ABS display coordinate

X
Y
Z
ABS
mm
mm
mm
56.785
12.345
45.785
XS: 0 mm/min
X
Y
Z
ABS
mm
mm
mm
56.785
12.345
45.785
XS: 0 mm/min
- 5 -
Basic Functions - SPEED [ axial cutting speed display ]
Purpose : To make sure the machining surface finished is consistent, operator must know exactly how much the
machine travel speed is for the machining ( such as cutting, facing and etc.. ).
ES-12 provides the SPEED function to display the machine moving speed in mm/min in all selected axis.
The SPEED display is filtered by an 0.25 sec display filter to provide stabilized speed display, to enable
the operator to adjust the machine's power feed at a more easy and comfortable speed visualization.
The display resolution of the SPEED function is in mm/min, which is the most commonly used unit in
machine feed rate in CNC machining or cutting tool feed calculations. SPEED function is very useful in
monitoring many common machining process ( such as cutting, facing and etc.. ) to achieve
predictable surface finish or to achieve predictable cutting tool life.
Example : To activate the SPEED display of X Axis, press Axis button for more than 0.6 sec. Then the
X moving speed display will be displayed in message window. Same operation for
Y, Z and U axis.
press for more than
0.6 sec.
XS - X SPEED display
YS - Y SPEED display
ZS - Z SPEED display
US - U SPEED display
SPEED display mode
normal display mode
X
Y
Z
ABS
mm
mm
mm
56.785
12.345
45.785
X
Y
Z
ABS
mm
mm
mm
56.785
12.345
45.785
Please notice that during the SPEED display mode, all DRO functions are temporarily disable !
Operator have to exit the SPEED display mode to carry out any normal DRO functions
To exit the SPEED display mode and return to normal display mode, press
ce
ce
SPEED display mode normal display mode

X
Y
Z
ABS
mm
mm
mm
56.785
12.345
45.785
X
Y
Z
ABS
mm
mm
mm
56.785
12.345
45.785
X
Y
Z
ABS
mm
mm
mm
56.785
12.345
45.785
Basic Functions - Vibration Filtering
- 6 -
Purpose : Vibration filtering is especially useful for old and big machines in which the machine structure is not
rigid enough to get a stable display during machining or moving. when the machine is moving or
machining in one axis, the other axes may vibrate and hence the DRO display numbers are jumping
around which may cause confusions and uncomfortable position visualization to the operator.
ES-12 provides vibration filtering function to stabilize the digits display, it make the operator more
comfortable during the position visualization. Filtering bandwidth parameter can be set in SETUP
procedure to adopt the different condition of the machine.
To have the most sensitive display for manual machine positioning, it is advisable that the operator to
cancel any vibration filtering to get the most sensitive and fastest response position display to make
the manual machine positioning more comfortable to operate. When the machine is moving by the
power feed or making the parts cutting, it is prefer that to put the vibration filter on to have more
comfortable position readings visualization.
Therefore, ES-12 provides easy swap between filtered and non-filtered displays by just a simple key
buttion press !
Example : To activate the vibration filter, press button for more than 0.6 sec.
ce
press for more than
0.6 sec.
When Vibration filter
is on, the LEFT more
digit of the message
window will flashing
to indicate vibration
filtering is ON.
ce
X
Y
Z
ABS
mm
mm
mm
56.785
12.345
45.785
ce
To cancel the vibration filter, press button for more than 0.6 sec again.
press for more than
0.6 sec.
When Vibration filter
is on, the LEFT more
digit of the message
window will flashing
to indicate vibration
filtering is ON.
ce
please notice that the vibration filter won't affect the accuracy of the position display,
it cannot make the DRO display reading more accurate or less accurate !!

X
Y
Z
ABS
mm
mm
mm
12.345
45.785
SU - 1
102.570
X
Y
Z
ABS
mm
mm
mm
12.345
45.785
SU - 1
102.570
Basic Functions - XZ/YZ Axes Summing
- 7 -
This function available only when the 3 Axes DRO configured to DRO TYPE = LATHE
Purpose : The Axes Summing function is a useful function for LATHE application.
ES-12 provides the axes summing function for providing temporarily summing display of XZ
and YZ axes, operator can swap back to the orginal displays ( X/Y/Z individual display with no
summing of axes ) at any time they want.
The summing function is useful when two linear scales are installed on the cross slide of lathe.
The summing function allow the operator to have direct combined reading of these two linear
scales for the tool tip positioning, this make machining more easier and less mistake.
Example : To get the summing display of X and Z axes
( the same operation if we want summing the Y and Z axes, if we want YZ summing, just replacing
the X axis button key press with Y axis button key press as per following example. )
Z
enter the Z axis function
X
press X axis button key
SU-1: Summing axis 1( X )
SU-2: Summing axis 2( Y )
In the axes summing display mode, the Z axis will
turn off to avoid possible confusion to the operator.
Message "SU-1" or "SU-2" to let the operator know
which axis have summed with Z axis.
Axes summing display
X
Y
Z
ABS
mm
mm
mm
56.785
12.345
45.785
X
Y
Z
ABS
mm
mm
mm
56.785
12.345
45.785
X
Y
Z
ABS
mm
mm
mm
56.785
12.345
45.785
ENTR. VAL
X
Y
Z
ABS
mm
mm
mm
56.785
12.345
45.785
ENTR. VAL
Please notice that when the display is in axes summing mode, all DRO functions are temporarily
disabled to avoid confusion and mistaken operation !!
ce
To exit from Axes summing display mode, return to normal X/Y/Z display, press
ce
Axes summing display normal X/Y/Z display mode

- 8 -
Built in Calculator
Calculator

X
Y
Z
ABS
mm
mm
mm
- 9 -
Function : Calculator is the most frequently use tool during the manual machining process.
ES-12 provides a built-in calculator which can perform normal mathematical calculations
such as add, substract, multiply, division and etc., it also provides useful trigonmetric
calculations that are frequently used during machining process, such as SIN, COS,
TAN, SQRT, and also their inverses, such as inv SIN, inv COS, inv TAN, SQUARE...
The builti in calculator of this DRO also provides the "result transfer" function, all calculated
result can "transfered" to any axis, the DRO temporarily preset the axis's zero position at the
calculated result coordinate, operator simply move the machine to axis display = 0.000,
then the tool is located at the calculated value. This preset is only temporarily, after the
operator finished the machine operation at the calculated coordinate, he can simply
press CE key, then the axis's zero position will be resumed to the orignal coordinate before
the "result transfer", the operator can contiinue the remaining machining as normal.
The built-in calculator offers following advantages :
1. Operations are same as normal commerically available calculators, easy to use and no
need to learn.
2. Calculated result can be transfered to any axis directly, no need to mark down the calculated
number on paper or etc., it is more convenience, time saving and less mistake.
3. No unnecessary down time in finding or sharing the calcualtors whenever you need one
for mathematical calculation.
press this key to transfer calculated
result on to the axis display, then the DRO
will temporarily preset the axis's zero at
calculated value, operator just move the
machine until axis display = 0.000, then
the calculated position is reached.
Result transfer key
Calculator key
key to enter into calculator function
Calculated result display
Calculator Keypad
Inverse key
for the inversed
trigonmetric
calculation
Clear key
1. clear key in normal
calculation mode
2. cancell the result
transfer's temporarily
zero preset
trigonmetric functions keys
Key layout of the built in calculator
Built in Calculator

X
Y
Z
ABS
mm
mm
mm
12.345
78.975
45.765
X
Y
Z
ABS 0.
mm
mm
mm
12.345
78.975
45.765
X
Y
Z
ABS 0.
mm
mm
mm
12.345
78.975
45.765
X
Y
Z
ABS 0.
mm
mm
mm
12.345
78.975
45.765
X
Y
Z
ABS 0.
mm
mm
mm
12.345
78.975
45.765
X
Y
Z
ABS 0.
mm
mm
mm
12.345
78.975
45.765
X
Y
Z
ABS 63.818181
mm
mm
mm
12.345
78.975
45.765
X
Y
Z
ABS 0.8660254
mm
mm
mm
12.345
78.975
45.765
X
Y
Z
ABS 76.
mm
mm
mm
12.345
78.975
45.765
X
Y
Z
ABS 76.
mm
mm
mm
12.345
78.975
45.765
- 10 -
Built in Calculator
Example :
To enter into
calculator function
i.e. Trigonometric calculation - COS : 100 X COS 30 =86.602540
The operations of the DRO's built-in calculator is same as common commerically available calculator
since this DRO don't have AC
key as per normal calculator,
therefore, CE key is used to act
as the AC key in normal calculator
Clear & restart the calculation
i.e. Basic mathematics - add ; substract : 78 + 9 - 11 = 76
i.e. Basic mathematics - multiply ; division : 78 X 9 / 11 = 63.818181

X
Y
Z
ABS 108.675
mm
mm
mm
12.345
78.975
45.765
- 11 -
Built in Calculator
i.e. To move the tool at the X axis position : 105 X 1.035 = 108.675
-1
Result transfer
i.e. Trigonometric calculation - inverse SIN : SIN 0.5 =30
transfer the calculated result : 108.675
to X axis for tool positioning
to transfer calculated
result to X axis
X axis zero position is now
temporarily preset at X = 108.675
digit display shift left
to identify X axis is
at positioning mode
move the machine to X display = 0.000
then the tool is located at the position
of X = 108.675
Tool is now at the position of calculated result,
( X = 108.675 in the above example )
press the CE key to return to the normal
display coordinate
return to normal display coordinate
X=108.675
( 0.000, 0.000 )
X
Y
Z
ABS 0.
mm
mm
mm
12.345
78.975
45.765
X
Y
Z
ABS 0.
mm
mm
mm
12.345
78.975
45.765
X
Y
Z
ABS 108.675
mm
mm
mm
12.345
78.975
45.765
X
Y
Z
ABS X 108.675
mm
mm
mm
79.565
78.975
45.765
X
Y
Z
ABS X 108.675
mm
mm
mm
0.000
78.975
45.765
X
Y
Z
ABS X 108.675
mm
mm
mm
0.000
78.975
45.765
X
Y
Z
ABS 0.0087265
mm
mm
mm
12.345
78.975
45.765
X
Y
Z
ABS
mm
mm
mm
12.345
78.975
45.765

- 12 -
199 Subdatum Function
( sdm 1 )
Subdatum 1
( sdm 3 )
Subdatum 3
( sdm 4 )
Subdatum 4
( ABS )
work piece datum
( sdm 2 )
Subdatum 2

X
Y
Z
SDM 2
mm
mm
mm
- 13 -
199 Subdatum Function - working principal
Purpose : Most commonly available DROs in the market are just provide two set of work coordinates - ABS/INC,
however, it was found that in case of a bit more complicated machining or in the small batch
machining of repeative parts, only the ABS/INC coordinate are not adquate for providing efficient
and convenience tool positioning for the machining.
Shortfalls of having only ABS/INC coordinates are as follows
- In many machining, the work piece machining demensions are come from more than two datums,
therefore, operator have to switches between ABS and INC to set up extra machining datums times
after times, this is time consuming and easily make unnecessary mistakes.
- In case of batch machining of repeative parts, operator have to set up and calcalates all
machining positions repeatively, again, it is time consuming and not efficient !
ES-12 provides extra 199 subdatums ( sdm ) memory to overcome the above shortfalls of having only the
ABS/INC coordinates, sdm function not just simply provide 199 set of extra INC coordinates, it is specially
designed to provide very useful and convenience operations to operator for repeative batch machining.
Followings are the difference between INC and SDMs.
1. INC is independent of ABS, it won't follows any change in ABS datum ( zero point ) .
However, all sdm coordinates are relative to ABS coordinate, all sdms position are relative
to ABS's zero, it will shift together with ABS zero position changes.
2. All sdms coordinate's relative distance to ABS can be enter directly into the DRO using the
keypads. No need of any calculation or actual tool positionings inthe machine.
sdm application in the work piece that
have more than on datums
operator can store all work subdatums in
the DRO's memory as per follows
( sdm 1 )
Subdatum 1
( sdm 3 )
Subdatum 3
( sdm 4 )
Subdatum 4
( ABS )
work piece datum
( sdm 2 )
Subdatum 2
operator than can
switches between
the subdatums directly
by press UP or DOWN
keys, no need to
refer back to ABS
coordinate and set
up the subdatums
from their relative
distance from ABS
or
press UP or DOWN
keys to go to
machining points
move the machine
to display = 0.000,
then tool is posited
at the machining
positions.
or ( ABS )
work piece datum ( 0.000 )
( sdm 3 )
point 3
( sdm 1 )
point 1
( sdm 4 )
point 4
( sdm 2 )
point 2
sdm application in batch machining of
repeative works
since all sdm subdatums ( 0.000 ) are relative to
ABS zero, therefore, for any repeative works, the
operator just need to set up the first work piece
zero at ABS, store all the machining positions as
the subdatum zero in one of the 199 subdatum
memory.
For anymore repeative parts, just set up the 2nd,
3rd, 4th,.. etc.. work piece zero at ABS, then all the
machining positions will repears in the subdatums
zero positions.
X
Y
Z
SDM 2
mm
mm
mm
0.000
0.000
0.000