Connection Of Several Inverters - Mitsubishi Electric FR-A8NC Instruction Manual

3.3

Connection of several inverters

An inverter can join the link system as a CC-Link remote device station, and such device stations can be controlled and
monitored with a user program of a programmable controller. These devices can be useful components of an automated
factory.
Connect shielding wires of the CC-Link dedicated cable to "SLD" of each unit.
Terminating
resistor ∗1

Use the terminating resistors supplied with the programmable controller.

Set "1" and "2" of the terminating resistor selection switch to OFF (without terminating resistor) in the middle units. (Refer to

Set the terminating resistor selection switch. (Refer to
Do not use the built-in terminating resistor selection switch when using a one-touch connecter plug with terminating resistor. (1-OFF, 2-
OFF) (Refer to
• Maximum number of units connected to one master station (CC-Link Ver.1.10)
42 units (when connections are inverters only)
If any other units are included, the number of stations occupied depends on the unit and therefore the following
conditions must be satisfied:
{(1  a) + (2  b) + (3  c) + (4  d)}  64
a: Number of units occupying 1 station
b: Number of units occupying 2 stations
{(16  A) + (54  B) + (88  C)}  2304
A: Number of remote I/O  64
B: Number of remote device stations  42
C: Number of local, standby master and intelligent device stations  26
Master module FR-A8NC
Blue
DA
White
DB
Yellow
DG
SLD
Shielded
twisted cable
page 20 for the details of the one-touch connector plug with terminating resistor.)
c: Number of units occupying 3 stations
d: Number of units occupying 4 stations
FR-A8NC
∗2
Blue
DA DA
White
DB DB
Yellow
DG
DG
SLD SLD
Shielded
twisted cable
page 15.)
Terminating resistor
selection switch ∗3
page
WIRING
3
15.)
23