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Terminal connection diagram (when using with the FR-A800 series)
Before making connections, check the cable size and connection method to each device in the Instruction Manual.
FR-HC2-7.5K to 75K, FR-HC2-H7.5K to H220K
MCCB
Power
supply
FR-HC2-H280K
MC
MCCB
Power
Supply
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 Inverter Instruction Manual.)
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 (2) (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 28)
The MC power supply stepdown transformer is only equipped in the 400V class models.
Outside box (FR-HCB2)
Limit resistor
Reactor1
(1)
MC
(FR-HCL21)
R2/
L12
R/
R2/
L12
L1
S2/
L22
S/
S2/
L22
L2
T2/
L32
T/
T2/
L3
L32
Filter capactors
MC power
supply stepdown
transformer
Overheat detection thermostat
for the limit resistor (NC contact)
Limit
resistors
Reactor 1
(1)
(FR-HCL21)
R2/
R/
L1
L12
S2/
S/
L2
L22
T2/
T/
L3
L32
Filter capacitors
(FR-HCC2)
Auxiliary contact for
limit MCs (NO contact)
Buffer relay for
driving MC
MC power
supply stepdown
transformer
Converter
(FR-HC2)
Reactor2
(FR-HCL22)
R3/
L13
R3/
R4/
R4/L14
L13
L14
S3/
L23
S4/
S3/
S4/L24
L23
L24
T3/
L33
T3/
T4/
T4/L34
L33
L34
Limit MC1
(2)
ROH1
ROH
Inrush current limit
resistor overheat
Auxiliary contact
protection
(NO contact)
SD
Contact
ROH2
input
common
MC1
88S
88S
MC
connection
terminal
88R
88R
MC
connection
terminal
Reset
RES
SOF
Converter stop
X1
Monitor switching
X2
Monitor switching
Contact input common
SD
connector
24VDC power supply
PC
(External transistor common)
R/L1
S/L2
T/L3
R1/L11
S1/L21
Converter
(FR-HC2)
Reactor 2
(FR-HCL22)
MC
R3/
R4/
R4/L14
L13
L14
S4/
S3/
S4/L24
L23
L24
T3/
T4/
T4/L34
L33
L34
P/+
(2)
Limit resistor
N/-
(with a thermostat) (NC contact)
ROH
Inrush current
limit resistor
overheat
protection
SD
Contact
Limit
input
MC
RDY
MC
common
RSO
MC connection terminal
CVO
MC
88R
Bu1
Y1
MC connection terminal
88S
Y2
RES
Converter reset
SOF
Converter stop
Monitor
X1
switching
Monitor
X2
switching
PU
connector
Contact input common
SD
24VDC power supply
PC
(External transistor
common)
R/L1
S/L2
T/L3
R1/L11
S1/L21
Inverter
R/L1
U
S/L2
V
Motor
T/L3
W
R1/L11
S1/L21
Fuses
Earth
P/+
P/+
(Ground)
N/-
N/-
C
Relay
output
B
(fault
output)
A
Inverter run
RDY
enable signal
X10
Converter
RSO
RES
CVO
During
converter run
Y1
Multi-purpose
SD
output 1
Y2
Multi-purpose
SE
Open collector output common
Y3
Multi - purpose output 3
SE2
Open collector output common
+
-
FM
PU
Indicator
SD
AM
(+)
Analog signal output
5
(0 to 10VDC)
(-)
Inverter
R/L1
U
S/L2
V
Motor
T/L3
W
R1/L11
S1/L21
Earth
Fuses
(Ground)
P/+
N/-
C
Relay
output
B
(Fault
output)
A
Inverter run
enable signal
X10
Converter
reset
RES
During
converter
SD
run
Multi-purpose
output 1
Multi-purpose
output 2
Open collector
SE
output common
Y3
Multi - purpose output 3
Open collector
SE2
output common
+
-
FM
SD
Indicator
AM
(+)
Analog signal output
5
(0 to 10VDC)
(-)
19
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