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2.9
Wiring of main circuit (FR-HC2-H400K, H560K)
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.
2.9.1
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.
<Wiring example of 400K>
(1)
∗10
MCCB
MC
Power
Supply
MC power
supply
stepdown
transformer
(5)
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, S, and T 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, T/L3 input of the converter) and (3) (terminal R4/L14, S4/L24, 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 11)
Connect three sets consisting of one filter capacitor and one filter capacitor alarm detector for 560K.
For 560K, install a set of three MCs to each phase.
Number
(1)
(2)
(3)
(4)
(5)
(6)
(7)
Wiring of main circuit (FR-HC2-H400K, H560K)
Limit resistor
(2)
Reactor 1
(FR-HCL21)
MC1
R/
R2/
L1
L12
MC2
S/
S2/
L2
L22
MC3
T2/
T/
L3
L32
∗7
Limit resistor (with thermostat)
Filter capacitors 2
∗9
(FR-HCC2)
Filter capacitor
alarm detector
(NC contact) 2
∗9
MC
Bu2
MC1
MC2 MC3
Buffer relay for
Auxiliary contact for
filter capacitor
limit MCs (NO contact) 3
alarm detectors
Limit MC
MC1
MC2
MC3
MC
Bu1
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
Filter capacitor alarm detector
and converter
Converter
(FR-HC2)
Reactor 2
(FR-HCL22)
R3/
R4/
R4/L14
(3)
L13
L14
S4/
S3/
S4/L24
∗3
L23
L24
T3/
T4/
T4/L34
L34
L33
∗7
(NC contact) 3
Inrush current
limit resistor
Mini relay for filter
overheat
capacitor alarm detector
protection
ROH
MC
Small
SD
(7)
Contact input
common
RES
Reset
SOF
Converter stop
X1
Monitor switching
X2
Monitor switching
Contact input
SD
common
24VDC power supply
PC
PU
(External transistor common)
connector
88R
Buffer relay for driving MCs
88S
R/L1
∗5
S/L2
T/L3
R1/L11
S1/L21
Refer to page
48
49
50
51
51
52
52
(Instruction Manual of the filter
capacitor alarm detector)
(6)
Inverter
R/L1
S/L2
∗1
(4)
T/L3
W
R1/L11
S1/L21
∗8
Fuses
P/+
P/+
∗4
N/-
N/-
C
Relay output
B
(fault output)
A
Inverter run
RDY
enable signal
X10
∗2
RSO
Converter reset
RES
CVO
During converter run
Y1
Multi-purpose
SD
output 1
∗7
Y2
Multi-purpose
output 2
SE
Open collector output
common
Multi-purpose
Y3
output 3
SE2
Open collector output common
+
-
FM
Indicator
SD
AM
(+)
Analog signal output
(0 to 10VDC)
5
(-)
∗7
U
V
Motor
Earth
(Ground)
2
47
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