Mitsubishi Electric FR-XC-11K, Instruction Manual

Page: 69 / 186

Connection of the converter and the multiple inverters
68
INSTALLATION AND WIRING
 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
FR-XC
-11K
FR-A820
-00167
(2.2K)
FR-A820
-00167
(2.2K)
FR-A820
-00105
(1.5K)
FR-A820
-00105
(1.5K)
FR-A820
-00077
(0.75K)
FR-A820
-00077
(0.75K)
P/+
N/-
P/+
N/-
P/+
N/-
P/+
N/-
P/+
N/-
P/+
N/-
P/+
N/-
1st inverter
2
2
2
2
2
2
2
2
2
2
2
2
Junction terminal 1
Junction terminal 2
Junction terminal 3
Junction terminal 4
Junction terminal 5
Junction terminal 6
a
b
d
f
h
j
c
e
g
i
k
l
1st inverter
2nd inverter
3rd inverter
4th inverter
5th inverter
6th inverter
Fuse
Motor
2.2 kW
2.2 kW
1.5 kW
1.5 kW
0.75 kW
0.75 kW
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.
c: The gauge of cable between the junction terminal 1 and the junction terminal 2 is
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.
e: The gauge of cable between the junction terminal 2 and the junction terminal 3 is
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.
g: The gauge of cable between the junction terminal 3 and the junction terminal 4 is
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.
i: The gauge of cable between the junction terminal 4 and the junction terminal 5 is
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.
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.
Motor
Motor
Motor
Motor
Motor
2nd inverter
3rd inverter
4th inverter
5th inverter
6th inverter