
FANUC Series 16i-TA
2 CPU 3-path control function
Specifications
A-63406E
08 00.09.01 T.Nakazato Modified (viii)
07 00.06.23 T.Nakazato Modified (vii) H. kochiya
01 97.04.09 T.Nakazato Newly registered T. Masuda
ED. DATE DESIG. DESCRIPTION
TITLE
DRAW.NO.
SHEET
(4) 2
nd
and 3
rd
spindle
If 1
st
spindle is a serial spindle, 2
nd
and 3
rd
spindles are also able to use in a 3-path lathe.
The 2
nd
and 3
rd
spindles are controlled by PMC signals (SIND
#1
,SIND2
#1
,SIND3
#1
,SIND
#2
,SI
ND2
#2
,SIND3
#2
, SIND
#3
,SIND2
#3
,SIND3
#3
) or by the multi-spindle control function. If using the
multi-spindle control function, 1
st
spindle and 2
nd
spindle are connected with the serial interfaces
and 3
rd
spindle is connected with the analog interface.
Spindle speed is commanded by the numerical value with 5-digits continued on “S”. This
command is valid for the spindle selected by the spindle select signal (SWS
#1
to SWS
#3
). It is
possible that plural spindles revolve simultaneously by selecting and giving the same command to
them. Each spindle keeps the command value (spindle speed). And it is also kept after not being
selected. Using this function, it is possible to revolve each spindle with different speed at the same
time. And it is also possible to stop revolution of unnecessary spindles by the signals (*SSTP
#1
to
*SSTP
#3
) provided to stop revolution.
It is possible to execute thread cutting or feed per revolution by taking in the feedback pulse from
position coders to be fitted in 1
st
and 2
nd
spindle. It is selected by signals that taking in the
feedback pulse from the position coders to be fitted in which spindles. It can not take in the
feedback pulse of 3
rd
spindle. When the feedback of 2
nd
spindle position coder is used, refer to the
explanation of parameter No. 3706#3 PCS.
It shows on the next paragraph that the state in 3-spindle control and all spindles connected. Now
in 2-spindle control, all spindles of path 3 (SP1
#3
,SP2
#3
,SP3
#3
) can not be used. And in 1-spindle
control, all spindles of path 2 and path 3 (SP1
#2
,SP2
#2
,SP3
#2
,SP1
#3
,SP2
#3
,SP3
#3
) can not be used.
(a) The relation between the spindle command (path) and the spindle (the state in 3-spindle
control and all spindles connected)
Path 1 Path 2 Path 3
Spindle command 1 Spindle command 2 Spindle command 3
(i) (ii) (iii)
SLSPA
#1
SLSPB
#1
SLSPA
#2
SLSPB
#2
SLSPA
#3
SLSPB
#3
1 0------- (i) 1 0------- (i) 1 0------- (i)
0 1------- (ii) 0 1------- (ii) 0 1------- (ii)
1 1------- (iii) 1 1------- (iii) 1 1------- (iii)
SWS1
#1
SWS2
#1
SWS3
#1
SWS1
#2
SWS2
#2
SWS3
#2
SWS1
#3
SWS2
#3
SWS3
#3
SIND1
#1
SIND2
#1
SIND3
#1
SIND1
#2
SIND2
#2
SIND3
#2
SIND1
#3
SIND2
#3
SIND3
#3
SP1
#1
SP2
#1
SP3
#1
SP1
#2
SP2
#2
SP3
#2
SP1
#3
SP2
#3
SP3
#3
PC1
#1
PC2
#1
PC1
#2
PC2
#2
PC1
#3
PC2
#3
(i):spindle command on path 1 (ii):spindle command on path 2 (iii):spindle command on path 3