
B–65162E/03
5. INSTALLATION
91
(b) Servo amplifier module and spindle amplifier module
Connect the ground cable of the motor power cable to a ground
terminal of the terminal block of the module. Connect the other
ground terminal of the terminal block to the frame ground.
Connect the ground terminal of the metal frame to the frame
ground.
(c) PSMC–HV, regenerative discharge unit, and DBM
Connect the ground terminal of the metal frame to the frame
ground.
NOTE
1 Securing the ground terminal and a cable together is not
permitted.
2 When using an SVM–HV, always attach the motor flange to
the cabinet (machine) connected to the system ground. In
cases where it is difficult to attach the motor flange to the
cabinet (machine) connected to the system ground,
connect the motor flange and frame ground (the ground
plate of the cabinet) with a 1.25–mm
2
or larger cable which
should be separated from the power cable as far as
possible. (The dotted line in the figure below)
Signal ground
Not used
3φ input power supply
Dynamic brake
module (DBM)
Regenerative
discharge unit
Metal
frame
Frame ground
(ground plate of the cabinet)
System ground
Spindle
motor
Servo
motor
(Note 2)