
B–63525EN/02
G. FSSB START–UP PROCEDURE/
MATERIALS
APPENDIX
981
The slave is the generic name of a servo amplifier or separate detector
interface unit connected to the CNC via an FSSB optical cable. The
numbers from 1 to 10 are assigned to the slaves in ascending order; a
younger number is assigned to a slave that is closer to the CNC. A 2–axis
amplifier consists of two slaves, and a 3–axis amplifier consists of three
slaves. Set each of the parameters as described below according to which
of the three cases is applicable: the slave is an amplifier, the slave is a
separate detector interface unit, or there is no slave.
` When the slave is an amplifier:
Set a value obtained by subtracting 1 from the setting of parameter No.
1023 for the axis to which the amplifier is assigned.
` When the slave is a separate detector interface unit:
S For the first separate detector interface unit (closest to the CNC),
set 16.
S For the second separate detector interface unit (farthest from the
CNC), set 48.
` When there is no slave:
Set 40.
When using the simple electronic gear box (EGB) function, observe the
note below.
NOTE
When using the simple electronic gear (EGB) function
An EGB axis (axis set in parameter No. 7771) actually
requires no amplifier. However, make a setting, assuming
that the EGB axis is connected to a dummy amplifier. That
is, as the address conversion table value for a nonexistent
slave, set a value obtained by subtracting 1 from the setting
of parameter No. 1023 for the EGB axis instead of 40.
These parameters are automatically set by data input on the FSSB setting
screen when the FSSB setting mode is the automatic setting mode (when
bit 0 of parameter No. 1902 = 0). When the manual setting 2 mode is used
(when bit 0 of parameter No. 1902 = 1), be sure to enter necessary data
directly.