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2.8
Wiring of main circuit (FR-HC2-H280K)
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.
2.8.1
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.
(1)
MCCB
MC
Power
Supply
supply stepdown
transformer
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 (3) (terminal R4/L14, S4/L24, and T4/L34 input of the
converter) of the above diagram. It will not operate properly (except for the inrush current limit MC).
Securely perform grounding (earthing) by using the grounding (earthing) terminal.
Installation of a fuse is recommended. (Refer to page 13)
Number
(1)
(2)
(3)
(4)
(5)
(6)
Limit
resistors
Reactor 1
(2)
(FR-HCL21)
MC
R/
R2/
L1
L12
S2/
S/
L2
L22
T2/
T/
L3
L32
Filter capacitors
(FR-HCC2)
Auxiliary contact for
limit MCs (NO contact)
MC
MC
Bu1
Buffer relay for
driving MC
MC power
(5)
Wiring
Power supply and reactor 1
Reactor 1 and reactor 2
Reactor 2 and converter
Converter and inverter
Reactor 1 and converter
Power supply and inverter
Wiring of main circuit (FR-HC2-H280K)
Converter
(FR-HC2)
Reactor 2
(FR-HCL22)
R3/
R4/
R4/L14
L13
L14
S3/
S4/
S4/L24
L24
L23
T4/
T3/
T4/L34
L33
L34
(3)
Limit resistor
(with a thermostat) (NC contact)
ROH
Inrush current
limit resistor
overheat
protection
SD
Contact
Limit
input
MC
common
MC connection terminal
88R
MC connection terminal
88S
RES
Converter reset
SOF
Converter stop
Monitor
X1
switching
Monitor
X2
switching
Contact input common
SD
24VDC power supply
PC
(External transistor
common)
R/L1
S/L2
T/L3
R1/L11
S1/L21
Refer to page
43
43
44
45
45
46
(6)
Inverter
R/L1
U
S/L2
V
T/L3
W
R1/L11
(4)
S1/L21
Fuses
P/+
P/+
N/-
N/-
C
Relay
output
B
(Fault
output)
A
Inverter run
RDY
enable signal
X10
Converter
RSO
reset
RES
During
CVO
SD
converter
run
Y1
Multi-purpose
output 1
Y2
Multi-purpose
output 2
Open collector
SE
output common
Y3
Multi - purpose output 3
Open collector
SE2
output common
+
-
FM
PU
connector
Indicator
SD
AM
(+)
Analog signal output
5
(0 to 10VDC)
(-)
Motor
Earth
(Ground)
2
41
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