
B–63465EN/01
4. DIGITAL SERVO
77
3. Turn off the power then back on.
(8)FSSB setting
Connecting the control unit to servo amplifiers via a high–speed
serial bus (FANUC Serial Servo Bus, or FSSB), which uses only one
fiber optics cable, can significantly reduce the amount of cabling in
machine tool electrical sections.
#7
1902
#6 #5 #4 #3 #2 #1
ASE
#0
FMD
NOTE
After this parameter has been set, the power must be turned
off then back on for the setting to become effective.
[Data type] Bit
FMD The FSSB setting mode is:
0 : Automatic setting mode.
(When information including an axis–amplifier relationship is set,
parameter Nos. 1023, 1905, 1910 through 1919, 1936, and 1937 are
set automatically.)
1 : Manual setting 2 mode.
(Set parameter Nos. 1023, 1905, 1910 through 1919, 1936, and 1937
manually.)
ASE When automatic setting mode is selected for FSSB setting (when the FMD
parameter (bit 0 of parameter No.1902) is set to 0), automatic setting is:
0 : Not completed.
1 : Completed.
(This bit is automatically set to 1 upon the completion of automatic
setting.)
#7
PM21905
#6
PM1
#5 #4 #3 #2 #1 #0
FSL
NOTE
After this parameter has been set, the power must be turned
off then back on for the setting to become effective.
[Data type] Bit axis
FSL The type of interface used between the servo amplifier and servo software is:
0 : Fast type.
1 : Slow type.
The user can choose between two interface types for servo data transfer:
fast type or slow type. Set this parameter so that the following conditions
are satisfied:
S When a one–axis amplifier is used, either the fast type or slow type
interface can be used.
S When a two–axis amplifier is used, the use of the fast type for both axes
is not allowed. The slow type can be used for both axes.