Mitsubishi Electric GT1695M-XTBD User Manual page 430

(5) Grounding status
Current
status
Fig.
A
Measure
for the FG
cables
connected
Fig.
B
16
16.1 GOT Restoration Sheet
- 9
Servo PLC
Connection cable
CN1A CN1B
FG
LG
CN2 CN3
FG
a
Panel grounding
Servo PLC
Connection cable
CN1A CN1B
FG
LG
CN2 CN3
FG
Terminal block
Panel grounding
Grounding for
power system
Servo PLC
Connection cable
CN1A CN1B
FG
LG
CN2 CN3
FG
Panel grounding
The FG cables of the control
equipment (such as PLC) and
the power equipment (such as
FG GOT
servo amplifier) are connected
LG
as shown by "a".
Panel grounding
GOT
FG
LG
Perform independent grounding
Terminal block
at two places as shown in Fig. A.
Panel grounding
Independent grounding can
Grounding for
reduce the influence of noise.
power system
If independent grounding is not
allowed, be sure to perform
shared grounding as shown in
Fig. B.
GOT
FG
LG
Panel grounding
Connected
Not
connected
Effective
Ineffective