
B–62835EN/01
2. HARDWARE
59
Group ActionSignal line
Cable between the motion controller
and servo amplifier
Bind the cables in group C separate-
ly from group A, or cover group C
with an electromagnetic shield
Cable for position and velocity feed-
back
.
Separate group C as far from Group
p
Cable between the motion controller
and spindle amplifier
.
Be sure to perform shield proces-
sing.
Cable for position coder
Cable for manual pulse generator
Cable for battery
Cable between the motion controller
and the CRT/MDI
RS–232–C interface cable
Other cables to be covered with the
shield
NOTE
1 The groups must be 100mm or more apart from one another
when binding the cables in each group.
2 The electromagnetic shield refers to shielding between
groups with grounded steel plates.
Cable of group B, C
Cable of group A
Cabinet
Servo
amp.
Spindle
amp.
Control
unit
Duct
To operator’s
panel,
motor, etc.
Section
Group A Group B, C
Cover
The following ground systems are provided for the CNC machine tool:
D Signal ground system (SG)
The signal ground (SG) supplies the reference voltage (0V) of the
electrical signal system.
D Frame ground system (FG)
The frame ground system (FG) is used for safety, and suppressing
external and internal noises. In the frame ground system, the frames,
cases of the units, panels, and shields for the interface cables between
the units are connected.
D System ground system
The system ground system is used to connect the frame ground
systems connected between devices or units with the ground.
D Ground