C. 20-PIN INTERFACE CONNECTORS
Up till now we have recommend using pulse coder cable (A66L–0001–0286) up to 20 m in
length. We have developed two new cables: A66L–0001–0402 that can be used up to 30 m,
and A66L–0001–0403 that can be used up to 50 m. (For detailed specifications, see Figure 4.)
These cables (A66L–0001–0402 and A66L–0001–0403) not only demonstrate the same oil
resistance as cable A66L–0001–0286, they are also bend–resistant (100 mm dia. cables can
be bent up to one million operations), and comply with UL and CSA standards.
Cable wires generally need to be developed or ordered by the machine
tool builder for the Series 15–B/16/18.
FANUC has developed wires that specifically suit the interface
connector of the Series 15–B/16/18. They are listed in the table below,
for your convenience when ordering from the manufacturer.
(In addition to these, a cable for moving parts is under development.)
Cable type Use Structure FANUC
10–pair cable General purpose Ten 0.08–mm
A66L–0001–0284#10P Hitachi Cable,
Oki Electric Cable
CRT interface Coaxial six
A66L–0001–0296 Hitachi Cable 50 m maximum
Pulse coders, linear
scales, and manual
wires and three
A66L–0001–0286 Hitachi Cable,
Oki Electric Cable
20 m maximum
For the pulse coder, scale, and manual pulse generator, each of which has a +5–V power
supply, wires need to be selected taking into consideration the supply voltage drop caused by
the resistance of the cable.
A66L–0001–0286 has been designed for use with a cable length of 20 mm or less. If the cable
length exceeds 20 m, connect A66L–0001–0286 to a cable with a lower resistance, such as
The number of manual pulse generators to be connected is assumed to be three. If only one
generator is connected, the cable can be extended to a maximum of 50 m by connecting wires
with in parallel a cross–sectional area of 0.5 mm2 for the power supply.