
B–63833EN/03
6. SPINDLE CONNECTION
85
1
3
4
12,14,16
1
Connector JA7B
SIN
*SIN
SOUT
*SOUT
Connector JA7A
SOUT
*SOUT
SIN
*SIN
Cable connection
CNC
Spindle
amplifier
module
3
4
2
12,14,16
2
Ground plate Ground plate
Recommended cable connector:
PCR–E20FA (manufactured by Honda Tsushin Kogyo)
FCN–247J020–G/E (manufactured by Fujitsu)
52622–2011 (manufactured by Molex Japan)
Recommended wire specification:
A66L–0001–0284#10P (#28AWG × 10 pairs)
NOTE
In any of the following cases, make a connection via an
optical fiber cable by using an optical I/O link adapter:
D When the cable is 20 m or longer
D When the power magnetics cabinet containing a spindle
amplifier cannot be connected with the operator’s panel
cabinet containing a CNC control unit via a ground wire
with a cross–sectional area of 5.5 mm
2
or more
D When the cable is subject to significant noise. For
example, when there is a strong electromagnetic noise
source such as a welding machine near the cable, or
when the cable runs in parallel with a power line or power
magnetics cable that can generate noise.