FANUC Series 30i /31i /32i-MODEL A
Simple spindle electronic gear box
Specifications
- Contents -
1 GENERAL ................................................................................................................................ 2
2 SPECIFICATION ..................................................................................................................... 2
3 SIGNAL.................................................................................................................................... 3
4 PARAMETER ........................................................................................................................... 5
5 NOTE ....................................................................................................................................... 7
6 REFERENCE ........................................................................................................................... 7
FANUC Series 30i/31i/32i
Title Simple spindle electronic gear box
Specification
Draw
A-79527E
No.
Edit Date Design Description Sheet 1/7
Date Jun.18.2004 Desig. Apprv.
1 General
On two serial spindles, it is possible to execute spindle synchronous control by input signal
so that one spindle (slave spindle) follows another spindle (master spindle).
To take an example of using, it is possible to execute rotary guide bush control on two
spindles.
2 Specification
To synchronize these two spindles, electronic gear box function(EGB) of serial spindle is
used. In the Spindle EGB, the synchronous pulse is produced from the feedback
pulse of the position detector attached to the master axis in the motor control, and the slave
axis rotates with the pulse. Feedback pulse from Master side to Slave side is forwarded by
the
communication between spindle amplifiers.
In this functon, PMC input signal is used for Simple spindle EGB mode ON/OFF.
In order to turn on to Simple spindle EGB mode, the slave spindle has to be Cs contouring
control mode, though the master spindle may be any mode.
As for the spindle system configuration (motor, amplifier, sensor), please use the same
system configuration as spindle EGB system. As for the details, please refer to “FANUC AC
SPINDLE MOTOR i series PARAMETER MANUAL (B-65280EN) 5.8 Spindle EGB
(Spindle electronic gear box)”.
FANUC Series 30i/31i/32i
Title Simple spindle electronic gear box
Specification
Draw
A-79527E
No.
Edit Date Design Description Sheet 2/7
Date Jun.18.2004 Desig. Apprv.
3 Signal
Simple spindle EGB signal SSEGB1<Gn351#0> : First spindle
SSEGB2<Gn351#1> : Second spindle
SSEGB3<Gn351#2> : Third spindle
SSEGB4<Gn351#3> : Fourth spindle
[Classification] Input signal
[Function] The Simple spindle EGB mode is turned to ON with the slave spindle which is
selected by the corresponding signal.
Note
1. This signal is effective when the parameter SEGs (No.7705#0) is
“ 1”.
2. If Simple spindle EGB mode is switched ON/OFF during both
master spindle and slave spindle are not in the stop state, the slave
spindle accelerates / decelerates immediately. Therefore, please
switch Simple spindle EGB mode ON/OFF when both master
spindle and slave spindle are in the stop state.
3. During Simple spindle EGB mode, please set the slave spindle to
Cs contouring control mode.
Simple spindle EGB mode signal SSEGBM1<Fn351#0> : First spindle
SSEGBM2<Fn351#1> : Second spindle
SSEGBM3<Fn351#2> : Third spindle
SSEGBM4<Fn351#3> : Fourth spindle
[Classification] Output signal
[Function] The Simple spindle EGB mode is ON with the slave spindle which is selected by the
corresponding signal.
[Output condition] These signals are set to 1 when:
The Simple spindle EGB mode is ON with the slave spindle which is selected by the
corresponding signal.
These signals are set to 0 when:
The Simple spindle EGB mode is OFF with the slave spindle which is selected by the
corresponding signal.
FANUC Series 30i/31i/32i
Title Simple spindle electronic gear box
Specification
Draw
A-79527E
No.
Edit Date Design Description Sheet 3/7
Date Jun.18.2004 Desig. Apprv.
Signal address
CNC PMC
#7 #6 #5 #4 #3 #2 #1 #0
Gn351 SSEGB4 SSEGB3 SSEGB2 SSEGB1
PMC CNC
#7 #6 #5 #4 #3 #2 #1 #0
Fn351 SSEGBM4 SSEGBM3 SSEGBM2 SSEGBM1
Signal sequence
< Simple spindle EGB mode ON >
Spindle rotation speed
(both master spindle and slave Confirm the stop state of both master spindle and slave spindle.
spindle)
Turn on Cs contouring mode of slave spindle.
CON<Gn027#7> or
CONS1 ~ CONS4<Gn0274#0 ~ #3>
SSEGB1 ~ SSEGB4
<Gn351#0 ~ #3>
SSEGBM1 ~ SSEGBM4
<Fn351#0 ~ #3>
< Simple spindle EGB mode OFF >
Confirm the stop state of both master spindle and slave spindle.
Spindle rotation speed
(both master spindle and slave
spindle)
SSEGB1 ~ SSEGB4
<Gn351#0 ~ #3>
SSEGBM1 ~ SSEGBM4
<Fn351#0 ~ #3>
CON<Gn027#7> or
CONS1 ~ CONS4<Gn0274#0 ~ #3> Turn off Cs contouring mode of slave spindle.
FANUC Series 30i/31i/32i
Title Simple spindle electronic gear box
Specification
Draw
A-79527E
No.
Edit Date Design Description Sheet 4/7
Date Jun.18.2004 Desig. Apprv.
4 Parameter
#7 #6 #5 #4 #3 #2 #1 #0
7705 SEGs
[Input type] Parameter input
[Data type] Bit spindle
SEGs When Simple spindle electronic gear box function is used,
0: Not slave spindle of Simple spindle electronic gear box function
1: Slave spindle of Simple spindle electronic gear box function
When Simple spindle electronic gear box function is used, the above parameter bit for the
slave spindle is set to 1.
#7 #6 #5 #4 #3 #2 #1 #0
4395 ESYEGB
[Input type] Parameter input
[Data type] Bit spindle
ESYEGB Simple spindle electronic gear box function is
0: Disable
1: Enable
Both bits for master spindle and slave spindle are set to “1”.
#7 #6 #5 #4 #3 #2 #1 #0
4352 SPEGBM SPEGBS FFALWS
[Input type] Parameter input
[Data type] Bit spindle
SPEGBM Setting for the Simple spindle electronic gear box function master axis
0 : Non-spindle EGB master axis
1 : Spindle EGB master axis
Set this parameter to the master spindle.
SPEGBS Setting for the Simple spindle electronic gear box function slave axis
0 : Non-spindle EGB slave axis
1 : Spindle EGB slave axis
Set this parameter to the slave spindle.
FFALWS Feed-forward setting
0 : Feed-forward is enabled only during cutting feed.
1 : Feed-forward is always enabled.
Set this parameter to the slave spindle.
FANUC Series 30i/31i/32i
Title Simple spindle electronic gear box
Specification
Draw
A-79527E
No.
Edit Date Design Description Sheet 5/7
Date Jun.18.2004 Desig. Apprv.
4036 Feed forward coefficient
[Input type] Parameter input
[Data type] Word spindle
[Unit of data] 1%
[Valid data range] 0 to 100
Set “100” to the slave spindle.
4386
Number of master-axis spindle sensor teeth
[Input type] Parameter input
[Data type] Word spindle
[Unit of data] 1 /rev
[Valid data range] 0, 64 to 4096
Specify the number of master-axis spindle sensor teeth (position sensor). If "0" is specified,
Simple spindle electronic gear box is assumed to be "0".
Note
This parameter is only valid for slave spindle.
4387
Synchronization ratio numerator
[Input type] Parameter input
[Data type] Word spindle
[Valid data range] -32767 to 32767
Specify the numerator of a synchronization ratio.
Note
This parameter is only valid for slave spindle.
4388
Synchronization ratio denominator
[Input type] Parameter input
[Data type] Word spindle
[Valid data range] 1 to 32767
Specify the denominator of a synchronization ratio.
Note
This parameter is only valid for slave spindle.
FANUC Series 30i/31i/32i
Title Simple spindle electronic gear box
Specification
Draw
A-79527E
No.
Edit Date Design Description Sheet 6/7
Date Jun.18.2004 Desig. Apprv.
5 Note
(1) This function is a basic function. But Spindle serial output option and Cs contouring
control option are necessary.
(2) Please switch Simple spindle EGB mode ON/OFF when both master spindle and slave
spindle are in the stop state.
(3) During Simple spindle EGB mode, the excess error value of master spindle is returned to
the Cs contouring axis of slave spindle. Therefore, the slave spindle during Simple
spindle EGB mode always checks the excess error value at move.
(4) During Simple spindle EGB mode, the coordinates of Cs contouring axis of slave spindle
are not updated even if the slave spindle moves according to the movement of master
spindle.
(5) During Simple spindle EGB mode, the reference point return of Cs contouring axis of
slave spindle can not be done.
(6) During Simple spindle EGB mode, the composite control can not be done to the Cs
contouring axis of slave spindle.
(7) As for the spindle system configuration (motor, amplifier, sensor), please use the same
system configuration as spindle EGB system.
6 Reference
FANUC AC SPINDLE MOTOR i series PARAMETER MANUAL (B-65280EN)
5.8 Spindle EGB (Spindle electronic gear box)
FANUC Series 30i/31i/32i
Title Simple spindle electronic gear box
Specification
Draw
A-79527E
No.
Edit Date Design Description Sheet 7/7
Date Jun.18.2004 Desig. Apprv.
