Figure 2.7.10 Sg/Fg Isolated - Fujitsu M2361A Customer Engineering Manual

(3) AC considerations
a. The controller should always be solidly connected to earth ground.
The drives and the system are then grounded through the controller.
{The previous three approaches described in (2) above assume the
controller is the focal point for commonizing AC and DC ground.}
b. It is always recommended that the drive, controller and CPU share a
common AC branch circuit.
Controller
Drive 0 Drive
I
TRM2 TRM2
FG SG
FGl SG FG2 FGl SG FG2
ct>-r(±) + + (£)
+ +
(i)
Figure 2.7.8 SG/FG1 common
Controller Dr!ve 0 Drive
I
TRM2 TRM2
FG SG FGl SG FG2 FGl SG FG2
@-r(±)
(i)
+
+ (i)
+
+
Figure 2.7.9 SG/Hi Z FG2 common
Controller Drive 0 Drive
1
TRM2
TRM2
FG SG FGl SG FG2 FGl
SG FG2
<t>-r(±)
<±>
+
(i)
<±>
+ (±)
Figure 2.7.10 SG/FG isolated
B03P-4825-0002A ••• 01
Drive N
TRM2
FGl
SG
+ +
Drive N
TRM2
FGl SG
(£) +
Drive N
TRM2
FGl SG
(±)
+
FG2
(±)
Braid
FG2
+
Cove
red
Braid
FG2
<±>
Cover ed
Braid
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