
B–63783EN/01
7. CONNECTION TO CNC PERIPHERALS
283
CNC
PCR-EV20MDT
JA7B
JA41
JA7B
0V
0V
<SINB>
0V
<*SINB>
(+5V)
<SOUTB>
(+5V)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
SINA
*SINA
SOUTA
*SOUTA
[PCA]
[*PCA]
[PCB]
[*PCB]
(+5V)
<*SOUTB>
SOUTA
*SOUTA
SINA
*SINA
0V
0V
0V
3
4
1
2
12
14
16
PCR-EV20MDT
JA41
1
2
3
4
12
14
16
SIN
*SIN
SOUT
*SOUT
0V
0V
0V
0V
0V
0V
0V
0V
0V
(+5V)
(+5V)
1
2
3
4
5
6
7
8
9
10
SIN
*SIN
SOUT
*SOUT
(+5V)
11
12
13
14
15
16
17
18
19
20
α spindle amplifier module
NOTE
1 The +5V signals inside parentheses ( ) are power source signals to the optical I/O Link adapter to be used when
an optical I/O Link adapter is used for the connection between NC and the spindle amplifier. Do not connect this
signal when the optical cable is not used. It cannot be used jointly with the No.2 serial spindle.
The signals inside < > are used for the No.2 serial spindle interface. The 3rd and 4th spindles can be used by
using a serial spindle connection adapter.
2 For an αi spindle, a connection with the conventional optical I/O link adapter is not allowed. The optical adapter
(A13B–0154–B003) must be used.
Cable connection
Shield
Ground plate
Recommended wire specification: A66L–0001–0284#10P (#28AWG 10 pairs)
When this cable is laid nearby power lines and other cables, the shielded lead must be connected to the earth plate.
However, note that this connection is not required when the CNC and spindle amplifier module are mounted nearby.
In the following cases, use optical fiber cable connection through an optical I/O Link adapter:
D When the cable length exceeds 20m
D When the cabinet where the spindle amplifier is installed and the operator’s panel cabinet where the control unit
is installed cannot be connected through a grounding wire of 5.5 mm
2
or more
D When the cable may be affected by noise
For example, this applies when there is a source of strong magnetic noise, such as a welder, near the cable.
CNC
Optical adapter
Optical cable
Optical I/O
link adapter
αi spindle
amplifier
module
7.5.1
α Spindle Interface