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Connection of the converter and the multiple inverters
Wiring examples
In the following examples, six inverters (two FR-A820-00167(2.2K) inverters, two FR-A820-00105(1.5K) inverters, and two
FR-A820-00077(0.75K) inverters) are connected to the FR-XC-11K converter.
• Main circuit wiring example
Junction terminal 1
a
P/+
FR-XC
-11K
N/-
c
Junction terminal 2
e
Junction terminal 3
g
Junction terminal 4
i
Junction terminal 5
k
Junction terminal 6
68
INSTALLATION AND WIRING
1st inverter
Fuse
P/+
2.2 kW
b
FR-A820
Motor
-00167
N/-
(2.2K)
2nd inverter
P/+
2.2 kW
d
FR-A820
Motor
-00167
N/-
(2.2K)
3rd inverter
P/+
1.5 kW
f
FR-A820
Motor
-00105
N/-
(1.5K)
4th inverter
P/+
1.5 kW
h
FR-A820
Motor
-00105
N/-
(1.5K)
5th inverter
P/+
0.75 kW
FR-A820
j
Motor
-00077
N/-
(0.75K)
6th inverter
P/+
0.75 kW
l
FR-A820
Motor
-00077
N/-
(0.75K)
1st inverter
a: The gauge of cable between the FR-XC and the junction terminal 1 is 14 mm because
the FR-XC capacity is 11 kW.
b: The gauge of cable between the junction terminal 1 and the 1st axis inverter is 2 mm
because the inverter capacity is 2.2 kW.
2nd inverter
c: The gauge of cable between the junction terminal 1 and the junction terminal 2 is
2
14 mm because the total capacity of lower axis inverters is regarded as 7.5 kW (an
approximate inverter capacity of "6.7 kW" determined by the expression: 2.2 + 1.5 +
1.5 + 0.75 + 0.75).
d: The gauge of cable between the junction terminal 2 and the 2nd axis inverter is 2 mm
because the inverter capacity is 2.2 kW.
3rd inverter
e: The gauge of cable between the junction terminal 2 and the junction terminal 3 is
2
5.5 mm because the total capacity of lower axis inverters is regarded as 5.5 kW (an
approximate inverter capacity of "4.5 kW" determined by the expression: 1.5 + 1.5 +
0.75 + 0.75).
f: The gauge of cable between the junction terminal 3 and the 3rd axis inverter is 2 mm
because the inverter capacity is 1.5 kW.
4th inverter
g: The gauge of cable between the junction terminal 3 and the junction terminal 4 is
2
3.5 mm because the total capacity of lower axis inverters is regarded as 3.7 kW (an
approximate inverter capacity of "3.0 kW" determined by the expression: 1.5 + 0.75 +
0.75).
h: The gauge of cable between the junction terminal 4 and the 4th axis inverter is 2 mm
because the inverter capacity is 1.5 kW.
5th inverter
i: The gauge of cable between the junction terminal 4 and the junction terminal 5 is
2
2 mm because the total capacity of lower axis inverters is 1.5 kW determined by the
expression: 0.75 + 0.75.
j: The gauge of cable between the junction terminal 5 and the 5th axis inverter is 2 mm
because the inverter capacity is 0.75K.
6th inverter
k: The gauge of cable between the junction terminal 5 and the junction terminal 6 is 2 mm
because the inverter capacity is 0.75K.
l: The gauge of cable between the junction terminal 6 and the 6th axis inverter is 2 mm
because the inverter capacity is 0.75K.
2
2
2
2
2
2
2
2
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