Grounding; Grounding The Got - Mitsubishi Electric GOT SIMPLE Series Operation Manual

8.3

Grounding

The following describes the grounding of the GOT.

Grounding the GOT

Grounding method
Ground the GOT as shown below.
Use independent grounding as much as possible for the GOT. Ground the GOT with a ground resistance of 100 Ω or less.
When independent grounding cannot be applied for the GOT, use shared grounding as shown in (2) below.
GOT Other device
Grounding
(ground resistance:
100 Ω or less)
......
(1) Independent grounding Best (2) Shared grounding
For the grounding methods of (1) and (2) above, use a cable with 2 mm
Make a ground point near the GOT as much as possible to shorten the ground cable.
Grounding examples
■Independent grounding (Best)
For grounding for control system, ground the system at one end.
Especially for the control devices communicating each other, ground the system at one end.
Power equipment
(such as servo)
FG
CN1A CN 1B
LG
CN2 CN3
FG
Ground
Panel
terminal
grounding
block
Grounding for
power system
GOT Other device
Grounding
(ground resistance:
100 Ω or less)
......
Good
Connection cable
GOT
FG
Ground terminal block
Grounding for
control system
GOT
Other device
......
(3) Common grounding Not allowed
2
or more cross section.
8 WIRING OF POWER SUPPLY SECTION
8
89
8.3 Grounding