
6. CONNECTION OF I/O UNITS TO
MACHINE INTERFACE
B–63783EN/01
68
NOTE
Do not bend optical cable beyond its bending radius of 25
mm. Do not unnecessarily twist optical cable.
On the I/O Link, the conventional optical I/O Link adapter can be
connected up to five stages using a standard type (A13B–0154–B001) and
up to 16 stages using a high–speed type (A13B–0154–B002).
1) Standard type (A13B–0154–B001)
Number of connectable stages: 5
2) High–speed type (A13B–0154–B002)
Number of connectable stages: 6
NC or
I/O Unit
Optical I/O
link adapter
NC or
I/O Unit
NC or
I/O Unit
1 stage
Optical I/O
link adapter
Optical I/O
link adapter
Optical I/O
link adapter
NOTE
The high–speed type and the standard–type cannot be
mixed on a single line.
The power source is the same for a standard type (A13B–0154–B001) and
a high–speed type (A13B–0154–B002).
(a) Power voltage: 4.75V to 5.25V (at the receiving end)
(b)Consumption current: 200 mA
D The optical I/O link adapter enclosure is not fully sealed ; install it with
the CNC control unit in the fully enclosed cabinet.
D Ground the case using the case fixing screw of the optical I/O link
adapter.
D The optical I/O link adapter is light, and it may not be necessary to
mount it with screws. However, keep it from coming in contact with
other circuits to prevent possible short–circuits. When mounting the
optical I/O link adapter in a cabinet, attach it with an L–type fitting
using the case fixing screws (M3) of the optical link adapter.
L fitting
Maximum number of
stages
Power source
Installation conditions