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Wiring of main circuit (FR-HC2-7.5K to 75K, FR-HC2-H7.5K to H220K)
2.7 Wiring of main circuit
(FR-HC2-7.5K to 75K, FR-HC2-H7.5K to H220K)
Perform wiring securely to conform with the harmonic suppression guideline of the former Ministry of International
Trade and Industry (currently the Japanese Ministry of Economy, Trade and Industry). Incorrect wiring causes the
converter to display an alarm or causes an fault or damage.
Refer to the Instruction Manual of each inverter for the wiring of the inverter. Special attention must be paid to the
wiring length and wire gauge.
2.7.1 Connection diagram (when using with the FR-A700 series)
Connection method differs by the inverter series. Perform connection by referring to the Instruction Manual of the
inverter.
Do not connect anything to the inverter power input terminals R/L1, S/L2 and T/L3. Incorrect connection will damage the inverter. Connecting opposite
polarity of terminals P and N will damage the converter and the inverter.
Use input terminal function selection to assign the terminal used for X10 signal. (Refer to the Instruction Manual of the inverter.)
The power phases of the terminals R4/L14, S4/L24, and T4/L34 and the terminals R/L1, S/L2, and T/L3 must be matched.
Do not insert MCCB between terminals P and N (P and P, N and N).
Always connect the terminal R/L1, S/L2, T/L3 of the converter to the power supply. If the inverter is operated without connecting the terminals to the power
supply, the converter will be damaged.
Do not insert MCCB or MC between (1) (terminal R/L1, S/L2, and T/L3 input of the Reactor 1) and (4) (terminal R4/L14, S4/L24, and T4/L34 input of the
converter) of the above diagram. It will not operate properly.
Securely perform grounding (earthing) by using the grounding (earthing) terminal.
Installation of a fuse is recommended. (Refer to page 11)
The MC power supply stepdown transformer is only equipped in the 400V class models.
Number Wiring Refer to page
(1) Power supply and reactor 1 35
(2) Reactor 1 and outside box 36
(3) Outside box and reactor 2 37
(4) Reactor 2 and converter 37
(5) Converter and inverter 38
(6) Reactor 1 and converter 39
(7) Power supply and inverter 39
(8) Outside box and converter 40
Limit resistor
Overheat detection thermostat
for the limit resistor (NC contact)
Outside box (FR-HCB2)
Converter
(FR-HC2)
Reactor1
(FR-HCL21)
Reactor2
(FR-HCL22)
Power
supply
MCCB
Filter capactors
ROH2
ROH1
P/+P/+
N/-
N/-
R1/L11
S1/L21
X10
RES
SD
RDY
RSO
SE
R/L1
S/L2
T/L3
U
V
W
R1/L11
S1/L21
88R
88R
88S
88S
ROH
SD
MC
R4/
L14
R4/L14
S4/
L24
S4/L24
T4/
L34
T4/L34
R3/
L13
R3/
L13
S3/
L23
S3/
L23
T3/
L33
T3/
L33
R2/
L12
R2/
L12
S2/
L22
S2/
L22
T2/
L32
T2/
L32
R/
L1
S/
L2
T/
L3
R/L1
S/L2
T/L3
SOF
X1
X2
RES
SD
PC
Y1
Y2
Y3
SE2
FM
SD
(-)
(+)
AM
5
A
B
C
Limit MC1
Inverter
Motor
Fuses
Earth
CVO
Contact
input
common
MC
connection
terminal
MC
connection
terminal
Converter stop
Monitor switching
Monitor switching
Contact input common
24VDC power supply
(External transistor common)
Relay
output
(fault
output)
Inverter run
enable signal
Converter
reset
During
converter run
Multi-purpose
output 1
Multi-purpose
output 2
Open collector output common
Analog signal output
(0 to 10VDC)
PU
connector
Inrush current limit
resistor overheat
protection
Reset
MC1
MC power
supply stepdown
transformer
Open collector output common
Multi - purpose output 3
(Ground)
Auxiliary contact
(NO contact)
+
-
Indicator
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
HC2.book 34 ページ ２０１２年１１月１９日 月曜日 午前１０時５２分