3. SIGNALS AND WIRING
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3.11 Grounding
Ground the driver and servo motor securely.
To prevent an electric shock, always connect the protective earth (PE) terminal
(marked ) of the driver to the protective earth (PE) of the cabinet.
The driver switches the power transistor on-off to supply power to the servo motor. Depending on the wiring
and ground cable routing, the driver may be affected by the switching noise (due to di/dt and dv/dt) of the
transistor. To prevent such a fault, refer to the following diagram and always ground.
To conform to the EMC Directive, refer to "EMC Installation Guidelines".
Ensure to connect the
wire to the PE terminal
of the servo amplifier.
Do not connect the wire
directly to the grounding
of the cabinet.
Line filter
(Note)
Power
supply
V
U
Cabinet
Servo motor
M
U
V
W
W
Encoder
CN2
Servo amplifier
L11
L1
L2
L3
L21
CN1
Protective earth (PE)
Outer
box
MC
MCCB
Programmable
For the power supply specifications, refer to section 1.3.
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