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Startup Guide -
May 2000
B-63003EN-2/01
1
Connecting the Control to the Servo Amplifiers
The control is connected to the servo amplifiers by a single optical cable known as the FANUC
Serial Servo Bus (FSSB). There is only one connection between the control and the servo
amplifiers regardless of the number of controlled axes.
Follow this procedure to connect the control to the servo amplifiers:
1
.
Locate the optical fiber cable which connects the control
to the servos. This cable will have one of the following
FANUC part numbers depending on its length and mounting
location:
a. Connection between modules or connection within the
same switch gear enclosure use internal cord type:
0.15m A66L-6001-0023#L150R0
0.30m A66L-6001-0023#L300R0
0.50m A66L-6001-0023#L500R0
1m A66L-6001-0023#L1R003
2m A66L-6001-0023#L2R003
3m A66L-6001-0023#L3R003
5m A66L-6001-0023#L5R003
7m A66L-6001-0023#L7R003
10 m A66L-6001-0023#L10R03
b. External cable when the cable is laid outside the
power magnetics cabinet or main unit, where it may be
pulled, rubbed or stepped on:
1m
A66L-6001-0026#L1R003
5m
A66L-6001-0026#L5R003
10m
A66L-6001-0026#L10R03
20m
A66L-6001-0026#L20R03
2
.
Insert one end into the connector labeled
COP10A
on the bottom of the back side of
the control. The connector is located behind the plastic yellow casing.
3
.
Insert the other end into the connector labeled
COP10B
on the front panel of the servo
amplifier.
4
.
You can connect a second servo amplifier module to the first one by running an optical
cable between
COP10A
of the first module and
COP10B
of the second module. You
can connect up to a total of 4 axes on a 21
i
, 6 axes on a 18
i
, or 8 axes on a 16
i
in this
manner. The part numbers for the optical cables between the servo amplifiers are
identified as per 1a. if the cable is not subject to movement during operation.
Note
If you are using a separate feedback device in addition to the built-in motor
encoder, please refer to:
Chapter 7.9 in the 16i /18i / 160i / 180i - Model A Connection Manual
Chapter 7.1 in the 21i / 210i - Model A Connection Manual