
EDIT.
SHEET
DRAW. NO.
CUST.
TITLE
DESCRIPTIONDESIG.DATE
The correction of FANUC Series 30i/300i
/300is/31i/310i/310is/32i/320i/320is
-M
DEL
NNE
TI
N
MAN
AL
B-63943EN/02-01
7.1.2 Interface to the Servo Amplifiers
The connections between the CNC control unit and servo amplifiers should be
made using optical fiber cables. Up to three FSSB lines can be connected to the
control unit. For the first and second FSSB lines, the optical connectors are
located on the servo card of the main board (some servo card types do not have an
optical connector for the second FSSB line). For the third FSSB line, the optical
connector is located on the additional axis board (the unit may not have an
additional axis board because it is optional).
The maximum number of axes and the connector name for each FSSB line depend
on the type and control method of the line. See the table below.
Control method and
maximum number of
axes
HRV2 HRV3 HRV4
Connector
name
Remarks
First FSSB line 16axes 10axes 4 axes COP10A-1 On the servo card
Second FSSB line 8 axes 8 axes 2 axes COP10A-2 On the servo card
Third FSSB line 8 axes 10 xes 4 axes COP10A-3 On the additional axis board
The following table lists the maximum number of controlled axes and control
methods in the 30i/31i/32i.
Control method and
maximum number of axes
HRV2 HRV3 HRV4
Remarks
30i
32 axes 28 axes 10 axes
31i
20 axes 20 axes 10 axes
32i
9 axes 9 axes HRV4 not usable
NOTE
1 As servo amplifier modules, αi series SVM which
supports the 30i/31i/32i or βi series SVM units
must be used.
2 The number of axes that can be controlled varies
also depending on the software series, the servo
card, and the type of an additional axis board.
3 When the number of axes that was set for the first
FSSB line is zero, no axes can be set for the
second FSSB line.
4 Unused optical connectors must be covered with
the caps.
The total cable length of each FSSB line is restricted to within 500m.
The length of the optical fiber cable between CNC and the first slave unit is
restricted to within 50m and others are within 40m (between slave units).
<Cable types>
Cable drawing number Usage Cable length restriction
A02B-0236-K851 to K856
(A66L-6001-0023#~)
For internal
connection
Within 10 m
A66L-6001-0026#~ For external
connection
Within 50 m
Within 40 m (between slave units)
2/3