17
Wiring for CC-Link communication
2.5.2 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.
∗1 Use the terminating resistors supplied with the programmable controller.
∗2 Set "1" and "2" of the terminating resistor selection switch (SW1) to OFF (without terminating resistor) in the middle units.
∗3 Set the terminating resistor selection switch (SW1). ( Refer to Chapter 1 of the Instruction Manual (Applied) for switch positions.)
Do not use the built-in terminating resistor selection switch (SW1) when using a one-touch connecter plug with terminating resistor. (SW1-OFF, 2-OFF)
(Refer to page 20 for the details of the one-touch connector plug with terminating resistor.)
∗4 Use a conduction area of a P-clip (enclosed item) to ground (earth) shielding wires of the CC-Link dedicated cable to a position (as close as possible to the
inverter) on the enclosure. Take caution not to subject the CC-Link communication connector to stress. (Refer to page 19)
(1) Maximum number of units connected to one master station (CC-Link Ver.1.10)
42 units (when only inverters are connected)
(2) Maximum number of units connected to one master station (CC-Link Ver.2.00)
42 units (when only inverters are connected)
DA
DB
DG
SLD
FR-E700-NC *2 FR-E700-NC
DA
DB
DG
SLD
DA
DB
DG
NC
NC
NC
SLD
*4
Terminating
resistor
*1
Master module
Shielded
twisted cable
Shielded
twisted cable
Terminating resistor
selection switch
(SW1) *3
Blue
White
Yellow
Blue
White
Yellow
*4
O
N
1
2
O
N
1
2
O
N
1
2
O
N
1
2
OFFOFF
ON OFF
OFF ON
ON ON
130Ω
110Ω
Without terminating
resistor (initial setting)
Do not use.
Description
130Ω is a resistance value for the CC-Link Ver.1.00 dedicated high performance cable.
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 c: Number of units occupying 3 stations
b: Number of units occupying 2 stations d: Number of units occupying 4 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
If any other units are included, the number of stations occupied depends on the unit and therefore the
following conditions must be satisfied:
• {(a + a2 + a4 + a8) + (b + b2 + b4 + b8) × 2 + (c + c2 + c4 + c8) × 3 + (d + d2 + d4 + d8) × 4} ≤ 64
•{(a × 32 + a2 × 32 + a4 × 64 + a8 × 128) + (b × 64 + b2 × 96 + b4 × 192 + b8 × 384) + (c × 96 + c2
× 160 + c4 × 320 + c8 × 640) + (d × 128 + d2 × 224 + d4 × 448 + d8 × 896)} ≤ 8192
•{(a × 4 + a2 × 8 + a4 × 16 + a8 × 32) + (b × 8 + b2 × 16 + b4 × 32 + b8 × 64) + (c × 12 + c2 × 24
+ c4 × 48 + c8 × 96) + (d × 16 + d2 × 32 + d4 × 64 + d8 × 128)} ≤ 2048
a: Number of single setting devices occupying one station
b: Number of single setting devices occupying two stations
c: Number of single setting devices occupying three stations
d: Number of single setting devices occupying four stations
a2: Number of double setting devices occupying one station
b2: Number of double setting devices occupying two stations
c2: Number of double setting devices occupying three stations
d2: Number of double setting devices occupying four stations
a4: Number of quadruple setting devices occupying one station
b4: Number of quadruple setting devices occupying two stations
c4: Number of quadruple setting devices occupying three stations
d4: Number of quadruple setting devices occupying four stations
a8: Number of octuple setting devices occupying one station
b8: Number of octuple setting devices occupying two stations
c8: Number of octuple setting devices occupying three stations
d8: Number of octuple setting devices occupying four stations
• 16 × A + 54 × B + 88 × C ≤ 2304
A: Numbers of remote I/O ≤ 64
B: Number of remote device stations ≤ 42
C: Number of local and intelligent device stations ≤ 26
