Resson Technologies RD-14G User manual

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Technologies
RD-14G
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Resson Technologies Co., Ltd.
Digital Readout System
Operation Manual
(Grinder)
RD-14G

Resson
Technologies Precautions
Precautions
For your protection, please read these safety instructions completely before operating the
appliance.
Selection of mains voltage●
The Digital readout unit is supplied for 100V 230V, 50Hz/60Hz, 20W max operation.～
Instructions prior to activation of unit
1. Please ensure that the voltage rating corresponds to the mains supply prior to activation.
2. If this unit is to be operayed via an autotransformer from mains supply of higher voltage,
it must be ensured that the low end of the transformer is connected to the neutral wire
of mains.
The mains connector may only be inserted into a socket with earthing contact. The protective●
effect should not be cancelled by an extension lead without an earthed conductor.
Any interruption of the earthed conductor either inside or outside of the unit or
disconnection of the earthed conductor can render the equipment potentially dangerous.
Any intentional break is not permissible.
Please install the Linear Encoder finish after that switch on the Digital Readout Unit. If●
switches on Digital Readout Unit before install the Linear Encoder not finished yet. This may
cause electronic parts burnt away of the Linear Encoder.
Do not use the instrument in an extremely hot or humid place.●
Do not use the instrument near strong magnetic or magnetic field noise place. This is the●
main reason that causes instrument error working.
Wipe the Digital readout unit surface with a soft cloth to remove fingerprints, dust, etc.●
Clean the Digital readout unit surface with a soft cloth slightly moistened with Neutral●
purger to remove serious dirt.
Do not use the organic solvent products such as oil, diesel fuel, kerosene, alcohol,etc clean●
the Digital readout unit.
Do not use the Air guns fanned Digital readout unit and Linear Encoder accessories to let●
grease, dust or bits get into the Digital readout unit. This may cause the system working
unstable and malfunction.

Resson
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RD-14G Specification
0V
A
5V
B
R
1
2
3
4
5
6
7
0V
A
5V
B
R
1
2
3
4
5
6
7
8
9
Number of axes : 、21
Reslution : 0. mm001
Display function : 8$ LED %&'
Response speed : 60m (198.6feet)/min
Quantizing error : ±1 count
Power source : AC 0V～ 0V / 50～60Hz / 20VA10 23
Temperature fange : Service:0～40℃/ Storage:-20～70℃
Linear Encoter (Scales) Electrical connector :
Inner shield
N/C
N/C
N/C
N/C
Inner shield
N/C : No Connection
N/C : No Connection
PIN SIGNALS
PIN SIGNALS
RD-14G Specification :

Resson
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1 Basic Functions ................................................ 1
2REF Datum Memory ......................................... 6
3 Non Linear error Compensation .......................10
4 RD-14G Setup Function .................................. 17

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Resson
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Basic Functions
Basic Functions
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Set the current position for that axis to zero
Purpose :
To set the current position toX Axis zeroExample :
Purpose : Switches between inch and metric display
Example 1 : Currently in display, to switch to displayinch metric
Example 2 : Currently in display, to switch to displaymetric inch
To set the current position toX Axis 45.800 mmExample :
Set the current position for that axis to an entered Dimension
Purpose :
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112.285
50.110
ABS
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ABS
0.000
50.110
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25.400
50.800
ABS
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1.0000
2.0000
ABS
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1.0000
2.0000
ABS
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25.400
50.800
ABS
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112.285
50.110
ABS
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45.800
50.110
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RD-14G ABSprovides two sets of basic coordinate display, they are (absolute)
and (incremental) displays.INC
During machining operations, the operator can store the work piece datum ( zero
position ) in coordinate, then switch to coordinate to continue machiningABS INC
operations.
The operator is then free to zero the axes or preset any dimensions into any
axis in coordinate for relative position machining. The work piece datumINC
( work piece zero position ) is still retained in coordinate by the .ABS RD-14G
Operator can then toggle between (absolute) and (incremental)ABS INC
coordinates without losing the work piece datum ( work piece zero position ).
Purpose :
Example 1 : Currently in display coordinate, to switch to display coordinateABS INC
Example 2 : Currently in display coordinate, to switch to display coordinateINC ABS
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ABS
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INC
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ABS
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INC

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0
Purpose ：Counter provide center find function by halfing the current
display coordinate, so that the zero point of the work piece is
located at the center of the work piece.
Example X：To set the Axis zero point at the center of the work piece
Step 1 X：Locate the edge finder at one end of the work piece, then zero the Axis.
Step 2 ：Locate the edge finder at the opposite
end of the work piece.
Step 3 ：Then half the display coordinate using center find function as per follows
Now the X Axis zero point ( 0.000 ) is located right at the X center of the work piece.
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0.000
ABS
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-34.560
ABS
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78.400
ABS
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39.200
ABS
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78.400
ABS
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0.000
ABS

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56.785
12.345
Sdm 5
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199 Subdatum memory
Vibration filtering
Purpose : High accuracy and high resolution (1u) display sre essential for grinder application. However, under
The high resolution display, the last digit display may keep toggling caused by the vibration of the
Machine during the machining process, especially in large grinder.
The innovative virbration filtering function can filter the display toggles to obtain a more
comfortable readings, and hence reduces human mistake.
the first digit of the message
display blinking indicate that
the readout is vibration
filtering mode.
Example 1 : The tum vibration filter on.
Example 2 : Vibration filter currently , to turn iton off
Purpose : The readout offer 199 subdatum memory function, it is offered as a supplement of ABS/INC coordinates.
All subdatums are reference to the ABS coordinate ( in offer word, all subdatums are independent to
INC coordinate).
Example 1 : Currently in display, coordinate to switch to display coordinateINC Sdm
Example 2 : Currently in display coordinate, to switch directly to display coordinateSdm 3 Sdm 9
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56.785
12.345
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56.785
12.345
Sdm 5
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42.635
4.321
Sdm 1
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56.785
32.147
INC
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72.130
8.625
Sdm 3
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25.538
42.400
Sdm 9

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X
Xref
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X
Xref
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During the daily machining process, it is very common that the machining cannot
be completed within one working shift, and hence the DRO has to be switched
off, or less commonly, a power failure occurs whilst machining which leads to
loss of the work piece datum ( work piece zero position ). The re-establishment
of work piece datum using edge finder or other method inevitably introduces
machining inaccuracies, because it is not possible to re-establish the work piece
datum exactly at the previous position.
To allow the recovery of work piece datum very accurately, with no need to
re-establish the work piece datum using an edge finder or other methods, every
transducer has a reference point location to provide a datum point memory function.
The working principal of the ref datum memory function is as follows.
-There are a permanent and fixed mark (position) on the transducer,
normally called mark or point..
ref ref
Since this point position is permanent and fixed, it will never change orref
disappear when the DRO system is switched off. Therefore, we simply need to
store the distance between the point and the work piece datum ( zeroref
position ) in DRO's memory. Then, in case of the power failure or the RD-14G being
switched off, we can recover the work piece datum ( zero position ) by presetting
the display zero position as the stored distance from the point.
ref
to store the X axis work datum
function :
Example :
RD-14G provides one of the most easy-to-use datum memory function.ref
There is no need to store the relative distance between the mark and your work datumref
zero into the ,RD-14G whenever you alter the zero position of coordinate, such as by zeroing,ABS
centre find, coordinate preset or etc.., will automatically store the relative distanceRD-14G
between zero and the mark location into 's memory.ABS RD-14Gref
In daily operation, operator simply needs to locate the mark position whenever they switch onref
the to let it know where the mark position is, then will automatically do theRD-14G RD-14Gref
work datum storage on its' own . In the case of a power failure or the being switched off,RD-14G
the operator can recover the work piece datum easily by using the procedure.RECALL 0
Operation :
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function : In ref datum memory function, the will automatically store the relativeRD-14G
distance between the mark position and the work piece datum ( zero position )
ref
whenever the operator alter the zero position, such as zeroing, centre find,ABS
co-ordinate preset or etc...
Therefore, the needs to store the mark position prior to any machiningRD-14G ref
operation. So that the loss of the work piece datum ( zero position ) is avoided during
any accidential or unexpected events, such as power failure or etc.. it is recommend that
the operator finds the ref mark position using the ( ) function wheneverFIND REF
he switches on the .RD-14G
step 3 : move the machine reader head across the length of the transducer until digits display in RD-14G
start to count.
step 1 : To enter the ref function, select the ( find mark )FIND REF ref
step 2 : select the axis of which mark needs to be foundref
move the machine across
the length of the transducer
select the FIND REF
(find mark)ref
enter into functionref
RECALL 0
(recall work zero)
FIND REF
(find mark)ref FIND REF
RECALL 0
FIND REF
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select axisX
in this example
select all axes :
X, Y, Z, respectively
select axisX, Y, Z,
or
or
or or
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X REF
SEL AXIS
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move the machine
until 's digitsRD-14G
display start run
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ABS
1.250
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X REF
0.000
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ABS

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function : If the ref point is lost for any reason, the work piece datum can be
recovered by function as follows:.RECALL 0
step 3 : move the machine across the length of the transducer until the displayRD-14G
starts to count, then the work piece datum is recovered
step 1 : enter into the function, select the ( recall work piece zero )ref RECALL 0
move the machine across
the length of the transducer
select the RECALL 0
( recall work zero )
step 2 : select the axis of which work datum (zero position) needed to be recovered
enter into functionref
RECALL 0
(recall work zero)
FIND REF
(find mark)ref RECALL 0
RECALL 0
FIND REF
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select axisX
in this example
select all axes :
X, Y, Z, respectively
select axisX, Y, Z,
or
or
or or
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X REF
SEL AXIS
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move the machine
until 's digitsRD-14G
display start run
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ABS
1.250
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X REF
0.000
ABS

Resson
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0 00 000
Non Linear error compensation
error
start point of
error curve
Compensation
saeps=10
Curve Line
Position
zero
1
2
3
4
CP.START
CP.PITCH CP.STEP
REF
567
8
9
10
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Non Linear error compensation
1
2
3
4
CP.START
eror
error curve
start position
(must be locate
d at the most
negative position
of the machine)
CP.PITCH CP.STEP=10
error curve
Position
(+Direction) CP.STEP:Compensation
Profile Step
CP.PITCH:Compensation
Profile Pitch
CP.START:Compensation
Profile Start
REF mark
567
8
9
10
The Grinder readout offers non-linear error compensation to improve readout accuracy to maximum
possible limit.
Principle of Operation:
Non-linear error compensation make use of the REF (reference mark) position of the linear scale to
locate the absolute position of the machine. The readout's CPU then compensate the readout readings
according to the error table that built in during the set up process. The compensation always started
vital important to have the CP.START position located at most negative position of the machine. Counter
offers a maximum of 30 non-linear compensation steps, the linear compensations is effect between the
compensation steps.
Operation procedure
1) Locate the REF zero at ABS coordinate:
swap the readout display
to abs coordinate
enter into functionref
select the FIND REF
(find mark)ref
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86.650
52.450
ABS
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86.650
52.450
ABS
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FIND REF
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RECALL0

Resson
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select the FIND REF
(find mark)ref select Xor Z axis
The CP. START position is the absolute reference for the internal error compensation calculation of the readout,
it is the start point of the error curve, to make fast real time calculation possible, the readout assume all internal
error compensation calculations are only in positive direction. Therefore, the CP. START position should be located in
the most negative position of the machine, so that all measured position in the error curve are located in positive
position.
I.e. In the example below, we are using a step gage which have total measurement travel of 300mm as our
measurement standard. The step pitch of the step gage is 25mm
Our maximum machine travel is 265mm. Therefore,
CP. PITCH = 25mm
CP. STEP = (265/25 )= 10.6 steps, since steps must be in integer, then round up to = 10steps
2) Locate the CP.START position:
Let's say take X as an example
select the x axis
after the display digits start
run, move the machine to
x=0.000,it is the ref mark
position.
move the machine across the ref mark of the scale until the digits
display start run. Please remember that to move the scale must
be moved towards the positive direction.
ref mark
Positive direction
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0.000
ABS
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SEL AXIS
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0.000
X REF
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FIND REF
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Non Linear error compensation
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0
Using a dial indicator to locate the most negative position of the step gage, zero the dial indicator at
that position, record down this position as the CP. START position.
CP. START
Positive Direction Bec a u s e the CP. START po s i t ion
always in the most negative position
of the machine, therefore, it should
always be negative value.
Please record down this position
by pen, in this example, the
CP.START position = -115.875
swap to INC coordinate
zero at the CP. START
position in INC coordinate
3) START measure the error, to build up a error curve.
To mark the error measurement more easy, swap to INC coordinate and zero at the
CP. START position.
0 00 00 0
Positive Direction
Start measure the error by
positioning the dial indicator
on the step gage. Take down
the display value shown at
the readout.
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-15.350
2.500
ABS
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-15.350
2.500
ABS
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56.785
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INC
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0.000
12.345
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Resson
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Record down the measured value from the readout and fill up following table
4) enter the error curve value into the readout
switch off the readout and them
switch it on again
During the start up procedure,
when the readout display the
software version number,
press "ent" once to enter
the SET UP function
25.000 25.008
50.000 50.004
75.000 75.017
100.000 99.995
150.000 150.012
200.000 199.988
125.000 125.002
175.000 174.997
225.000 225.007
250.000 250.015
CP.START = -115.875
CP.PITCH = 25.000
CP.STEP = 10
Standard position Measured value
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SETUP
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VER.9GA
88888888
88888888

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Non Linear error compensation
enter the CP.START
after entered the SET UP
function of the readout,
pr ess "do wn" bu tton
until display "NL Error"
appear.
NL Error is Non-Linear Error
(Non Linear Error Compensation)
Press to enter into
NL Error function
enter the CP.START
next step
enter the CP.STEP
next step
Press to confirm the
choice
MEAS VAL is Measured Value
next step
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NL Error
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0.000
0.000
CP.START
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0.000
0.000
CP.PITCH
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0.000
0.000
CP.STEP
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MEAS VAL
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Resson
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Press"down"key until
display shows"QUIT"
Press"ent"the quit
the SET UP function
* it is very important to remember to switch off the
readout. The error curve data will be moved to
the R A M m e m o ry of the re a d o u t o n ly durin g
the power star up procedure. Therefore, after
entered the error curve data, the display must
be switched off at least one time.
after enter the MEAS VAL mode
press "up" or "down" button
to select the step point value
......X axis measured value....
......Z axis measured value....
after all measured value
entered into the readout,
press"ent" to exit the
NL Error function
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P1 25
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NL Error
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QUIT