Mitsubishi Electric MELSERVO-J4 MR-J4 A Series - 3.11 Grounding

3. SIGNALS AND WIRING
3 - 62
3.11 Grounding
WARNING
Ground the servo amplifier and servo motor securely.
To prevent an electric shock, always connect the protective earth (PE) terminal
(marked
) of the servo amplifier to the protective earth (PE) of the cabinet.
The servo amplifier switches the power transistor on-off to supply power to the servo motor. Depending on
the wiring and ground cable routing, the servo amplifier 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 the EMC Installation Guidelines (IB(NA)67310).
ᔅߕࠨ࡯ࡏࠕࡦࡊ
ߩ
PE┵ሶߦធ⛯
ߒߡߊ
ߛߐ޿
ޕ
೙ᓮ⋚ߩ଻⼔ធ࿾
ߦ
⋥ធធ⛯ߒߥ޿ߢߊ
ߛߐ޿
ޕ
PE┵ሶߦធ⛯
ߒߡ
࡜
ࠗ
ࡦ
ࡈ
ࠖ
࡞
࠲
(ᵈ)
㔚Ḯ
V
U
೙ᓮ⋚
ࠨ࡯ࡏࡕ࡯࠲
M
U
V
W
W
ࠛࡦ
ࠦ࡯࠳
CN2
ࠨ࡯ࡏࠕࡦࡊ
L11
L1
L2
L3
L21
CN1A
଻⼔ធ࿾(PE)
ᄖ▫
MC
MCCB
ࠪ
ࠤ
ࡦ
ࠨ
Note. For 1-phase 200 V AC to 240 V AC, connect the power supply to L1 and L3. Leave L2 open. For power supply
specifications, refer to section 1.3.
Cabinet
Servo amplifier
Servo motor
CN1
Line filter
Programmable controller
Encoder
(Note)
Power supply
Protective earth (PE)
Outer
box
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.