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3.2 Connection of several inverters
Factory automation can be applied to several inverters which share a link system as CC-Link remote
device stations and are controlled and monitored by programmable controller user programs.
For the shield cable of the CC-Link dedicated cable, connect it to "SLD" of each unit and always earth
(ground) it via "FG".
Terminals SLD and FG are connected inside the unit.
Terminating
resistor
*1
Use the terminating resistors supplied with the programmable controller.
*2
For the unit in the middle, set 1 and 2 of SW2 to OFF (without terminating resistor).
*3
Perform setting of the terminating resistor selection switch (SW1).
(Refer to page 3 for the position of the switch.)
When connecting a terminating resistor separately, do not use a built-in
terminating resistor. (SW2 1-OFF, 2-OFF)
Master module
Blue
DA
White
*1
DB
Yellow
DG
Shielded
SLD
twisted cable
FG
FR-A7NC
FR-A7NC
*2
Blue
DA
DA
White
DB
DB
Yellow
DG
DG
Shielded
SLD
SLD
twisted cable
FG
FG
WIRING
Terminating
resistor
selection
switch (SW2)
*3
1
2
Description
Without
OFFOFF
terminating
resistor
ON OFF
Do not use.
130Ω
OFF ON
ON ON
110Ω
130Ω is a resistance value for the CC-Link
Ver.1.00 dedicated high performance
cable.
3
13
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