
7.SERVO INTERFACE B-63943EN/02
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7.1.1 Overview
This chapter describes how to connect the servo units to the 30i series .
For details of the connection of the Servo amplifier αi series, refer to
the Servo Amplifier αi series Descriptions (B-65282EN).
7.1.2 Interface to the Servo Amplifiers
The connections between the CNC control unit and servo amplifiers
should be made using optical cables. Up to three FSSB lines can be
connected to the control unit. For the first and second FSSB lines,
the optical connectors are located on the servo card of the main board
(some servo card types do not have an optical connector for the
second FSSB line). For the third FSSB line, the optical connector is
located on the additional axis board (the unit may not have an
additional axis board because it is optional).
The maximum number of axes and the connector name for each FSSB
line depend on the type and control method of the line. See the table
below.
Control method and
maximum number of
axes
HRV2 HRV3 HRV4
Connector
name
Remarks
First FSSB line
16
axes
10
axes
4 axes COP10A-1
On the servo
card
Second FSSB line 8 axes 8 axes 2 axes COP10A-2
On the servo
card
Third FSSB line 8 axes
10
axes
4 axes COP10A-3
On the
additional axis
board
The following table lists the maximum number of controlled axes and
control methods in the 30i/31i/32i.
Control method and
maximum number of axes
HRV2 HRV3 HRV4
Remarks
30i
32 axes 28 axes 10 axes
31i
20 axes 20 axes 10 axes
32i
9 axes 9 axes HRV4 not usable