Mitsubishi Electric GOT 1000 User Manual page 88

7.1.6 GOT's ground
1 Grounding the GOT and other devices
Make sure to carry out the followings for grounding.
Except 5V power supply type.
• Carry out the independent grounding if possible.
Provide class D (class 3) grounding. (Ground resistance must be 100 or less.)
• If the independent grounding is impossible, carry out the shared grounding as shown in fig.2) below.
GOT
Grounding
(100
(1) Independent ground
...... Best condition
• Set the grounding point closer to the GOT to make the grounding cable short as possible.
Provide grounding using a single grounding wire. Refer to the table below to select the proper size
grounding wire.
(For GT1020, GT1030, GT104 )
1.5mm
(For GT105 )
7 - 5 7.1 Power Supply Wiring
7.1.6 GOT's ground
Other
device
or less)
Solid wire
2
, AWG16
Other
GOT
device
Grounding
(100 or less)
(2) Shared grounding
...... Good condition
Ground wire size
Stranded wire
2
1.0mm , AWG16
Ground wire size
2
2mm or more
Other
GOT
device
(3) Common grounding
...... Not allowed
Ferrules with plastic sleeve
2
0.5mm , AWG20