Fuji Electric FRENIC-HVAC User Manual page 140

 RHC280-4C to RHC630-4C (Applicable inverters: FRN450AR1S-4U to FRN900AR1S-4U)
52
Power
supply
Ready
RDY RDY
to run
200 V or a
below
b
(*1)
52T
RDY 73 52A
Symbol
Lr Boosting reactor
Lf Filtering reactor
Cf Filtering capacitor
Rf Filtering resistor
R0 Charging resistor
F AC fuse
73 Magnetic contactor for charging circuit
52 Magnetic contactor for power supply
6F Magnetic contactor for filtering circuit
(*1) Connect a stepdown transformer to limit the voltage of the sequence circuit to 220 V or below.
(*2) Be sure to connect the auxiliary power input terminals R0 and T0 of the PWM converter and the inverter to the main
power input lines via B contacts of magnetic contactors of the power supply circuit (52). When the PWM converter is to
be connected to an ungrounded power supply, an insulation transformer is required. For details, refer to the PWM
Converter Instruction Manual (INR-HF51746.
(*3) Connect the auxiliary fan power input terminals R1 and T1 of the inverter to the main power input lines without going
through the MC's B contacts or 73.
(*4) Set fan power supply switching connectors CN R and CN W on the NC and FAN (73X) positions, respectively.
(*5) Construct a sequence in which a run command is given to the inverter after the PWM converter becomes ready to run.
(*6) Set the timer 52T at 1 sec.
(*7) Assign the external alarm THR to any of terminals [X1] to [X7] on the inverter.
(*8) Wiring for terminals L1/R, L2/S, L3/T, R2, T2, R1, S1, and T1 should match with the phase sequence.
R0 73
Lr
Lf
6F
Rf
Cf
g
h
(*3)
52A
52
c
d
52 52T
6F
(*6)
52 52T RUN 6F
Part name
Converter
F
L1/R P(+)
L2/S
F
L3/T N(-)
R2
T2
Y5A
Y5C
30A
R1 30B
S1 30C
T1
R0
T0
52
73A
c
(*2)
73C
d
RUN
RUN
RST
i j
CM
E(G)
RUN FX
STOP
RUN
FX
4-24
Inverter
P(+) U
M
V
３～
N(-) W
g
R1
h
T1 (*4) e f
(*5)
e
FX
f
FWD
(*7)
X7 (THR) CM
CM
30A 13
a
30B 12
b
30C 11
i
R0
j
T0
G