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Wiring
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Example of connecting two or more inverters
You can connect up to six inverters to one power regeneration common converter. The capacity of the power
regeneration common converter should always be greater than the sum of the connected inverter capacities or
the sum of rated inverter currents.
When connecting several inverters, pay attention to the selection of the cables sizes since junction terminals or
jumper cables are used to wire the terminals P, N of the inverters. Make selection so that the inverter
capacities are added in order, starting with the one of the remotest inverter.
When connecting several inverters, connect the inverters in order of larger capacities.
Specific example
R2/L1
S2/L2
P/L+
T2/L3
N/L-
R/L11
S/L21
T/MC1
FR-CV-22K
Note: 1. Correctly connect the terminals P/L+, N/L- with the inverter terminals P, N.
Wrong connection will damage the power regeneration common converter.
2. Do not insert the NFB between terminals P - N (P/L+ - P/+, N/L- - N/-, P/+ - P/+, N/- - N/-).
3. Manufactured by J.S.T.
4)
Connection of power supply and power regeneration common converter (power supply phase detection
terminals)
R/L11
S/L21
T/L31
4)
10m (32.81 feet) maximum
Dedicated
Stand-Alone
Terminal Name
Reactor Model
FR-CVL-7.5K
FR-CVL-11K
FR-CVL-15K
FR-CVL-22K
FR-CVL-30K
FR-CVL-37K
FR-CVL-55K
R/L11, S/L21,
FR-CVL-H7.5K
FR-CVL-H11K
FR-CVL-H15K
FR-CVL-H22K
FR-CVL-H30K
FR-CVL-H37K
FR-CVL-H55K
»
FR-A720-11K
3)
P/+
N/-
FR-A720-5.5K
P/+
N/-
FR-A720-3.7K
P/+
N/-
R2/L12
R2/L1
S2/L22
S2/L2
T2/L32
T2/L3
R/L11
S/L21
T/MC1
Terminal
Screw Size
M5
M5
M6
M6
M6
M10
M10
T/L31
M5
M5
M5
M6
M6
M8
M8
First inverter: Choose 38mm assuming
that the converter capacity
is 22K according to the sum
of inverter capacities,
11K+5.5K+3.7K=20.2K.
Second inverter: Choose 14mm assuming
that the converter capacity is
11K according to the sum of
inverter capacities,
5.5K+3.7K=9.2K.
Third inverter: Choose 3.5mm according to
the inverter capacity, 3.7K.
Tightening
Crimping
Torque N•m
Terminals
2.5
1.25-5
2.5
1.25-5
4.4
1.25-6
4.4
1.25-6
4.4
1.25-6
14.7
1.25-10
14.7
1.25-10
2.5
1.25-5
2.5
1.25-5
2.5
1.25-5
4.4
1.25-6
4.4
1.25-6
7.8
1.25-8
7.8
1.25-8
20
2
2
2
Cables
2
AWG
mm
1.25
16
1.25
16
1.25
16
1.25
16
1.25
16
1.25
16
1.25
16
1.25
16
1.25
16
1.25
16
1.25
16
1.25
16
1.25
16
1.25
16
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