SMC Networks LECSN-T Series User Manual

3. SIGNALS AND WIRING
3 - 38
3.10 Grounding
WARNING
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.
Network
module
Ensure to connect the wire to the
PE terminal of the servo amplifier.
Do not connect the wire directly to
the protective earth of the cabinet.
V
U
M
U
V
W
W
CN2
L11
L1
L2
L3
L21
MCMCCB
(Note)
Pow er
supply
Cabinet
Servo motor
Encoder
Servo amplifier
Line filter
Controller
Protective earth (PE)
Outer
box
Note.
For the power supply specifications, refer to section 1.3.
driver
card
upper side

SMC Networks LECSN-T Series Specifications

General

Brand	SMC Networks
Model	LECSN-T Series
Category	Controller
Language	English