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50
Wiring of main circuit (FR-HC2-H400K, H560K)
1) Filter capacitor
Install filter capacitors to the output side of the reactor 1 or to the input side of the inrush current limit MC as shown in
the connection diagram on page 49.
Connect two units in parallel for 400K, and three units in parallel for 560K.
Use the cable shown in the below table for the connection of filter capacitor.
2) Limit resistor, inrush current limit MC
Install a pair of a limit resistor and an inrush current limit MC to the output side of the reactor 1, and install another
pair of those to the input side of the reactor 2.
Short three poles of the inrush current limit MC using the appended MC shorting conductors, and use that for one
phase.
Before attaching an appended MC shorting conductor to an inrush current limit MC, remove the insulation barrier of
the limit MC.
Connect six limit resistors in parallel to the shorting conductors of the inrush current limit MC at each phase. Apply a
thermostat to at least one of the six limit resistors.
Use the cable shown in the below table for the connection of each phase between the reactor 1 and reactor 2.
3) Connecting limit resistor thermostats to the converter
Wire the limit resistor thermostats in series at R-phase, S-phase, and T-phase so that the signals from the limit
resistor thermostats are output into one line. In the wiring, also insert a mini relay so that the signal from the mini relay
and the signals from the limit resistor thermostats are output to terminal ROH and SD of the converter as shown in
the connection diagram on page 48.
(3) Wiring reactor 2 and converter
Use the cable shown in the below table for the connection.
Model Name
Cable gauge (mm
2
)
Wiring length
FR-HCC2-H400K 60
2m or less
FR-HCC2-H560K 38
Model Name
Cable gauge (mm
2
)
Total wiring length
FR-HCL21-H400K
FR-HCL22-H400K
2 200
10m or less
FR-HCL21-H560K
FR-HCL22-H560K
2 250
Model Name
Cable gauge (mm
2
)
Total wiring length
FR-HCL22-H400K
FR-HC2-H400K
2 200
10m or less
FR-HCL22-H560K
FR-HC2-H560K
2 250
MC shorting conductor
Inrush current
limit MC
(Example of one phase)
Reactor 2
(FR-HCL22)
Converter
(FR-HC2
)
R3/
L13
S3/
L23
T3/
L33
R4/
L14
R4/
L14
S4/
L24
S4/
L24
T4/
L34
T4/
L34
P/+
N/-
HC2.book 50 ページ ２０１２年１１月１９日 月曜日 午前１０時５２分