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M800W/M80W Series Connection and Setup Manual
5 Installation
5.2 Noise Countermeasures
5.2.1 Connection of Frame Ground (FG)
The frame should basically be grounded at one ground point.
Because the personal computer unit and the operation panel I/O unit are located in a place away from the electric
cabinet, connect the ground terminal of the personal computer to the grounding plate of the operation section and
connect the grounding plate of the operation panel to the grounding plate of the electric cabinet. (Be sure to ground the
ground terminal of the personal computer otherwise the influence is exerted on the usability of the touchscreen.)
Connect 0V (common) and FG on the 24VDC power supply.
Operation panel
DCIN
24VDC
0V
FG
Operation panel I/O unit
24VDC
Stabilized power supply
24VDC
0V
FG
Control panel
: Indicates that the metal case of connector is connected to FG
MPG
RIO3EXT
0V
RIO3
KEYUSB
Screw hole
Emergency
stop button
ACIN
24VDC
FG
Stabilized power supply
ACIN
FG
Control panel
grounding plate
DCIN
24VDC
0V
FG
Display unit
0V
(Grounded through the metal plate
on the back side of the display unit)
Screw hole
Operation panel
grounding plate
Control unit
EMG
24VDC
0V
FG
DCIN
0V
24VDC
0V
FG
Remote I/O unit
DCIN
0V
24VDC
0V
FG
according to the pattern on PCB.
211
Personal computer unit
0V
GDI
LAN
Screw hole
AIO
SKIP
RIO*
SIO
GDI
LAN
RIO2
RIO1
Screw hole
IB-1501268-K
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