Connection Of The High Power Factor Converter (Fr-Hc); Installation Of Power Factor Improving Reactor - Mitsubishi Electric FR-E720-600 Instruction Manual

Connection of stand-alone option unit
(2) Connection example with the FR-BR(-H) type resistor
Three-phase AC
power supply
∗1
Connect the inverter terminals (P/+, N/-) and brake unit (FR-BU2) terminals so that their terminal names match with
each other.
(Incorrect connection will damage the inverter and brake unit.)
∗2
When the power supply is 400V class, install a step-down transformer.
∗3
The wiring distance between the inverter, brake unit (FR-BU2) and resistor unit (FR-BR) should be within
5m(16.4feet). Even when the wiring is twisted, the cable length must not exceed 10m(32.8feet).
∗4
Normal: across TH1-TH2...close, Alarm: across TH1-TH2...open
∗5
A jumper is connected across BUE and SD in the initial status.
NOTE
Do not remove a jumper across terminal P/+ and P1 except when connecting a DC reactor.
2.4.3

Connection of the high power factor converter (FR-HC)

When connecting the high power factor converter (FR-HC) to suppress power harmonics, perform wiring securely as shown
below. Incorrect connection will damage the high power factor converter and inverter.
MC
MCCB
Power
supply
∗1
Do not insert an MCCB between the terminals P/+-N/- (between P-P/+, between N-N/-). Opposite polarity of terminals N/-, P/+ will damage the
inverter.
NOTE
The voltage phases of terminals R/L1, S/L2, T/L3 and terminals R4, S4, T4 must be matched.
Use sink logic (factory setting) when the FR-HC is connected. The FR-HC cannot be connected when source logic is
selected.
Do not remove a jumper across terminal P/+ and P1 except when connecting a DC reactor.
32
MCCB MC
R/L1
S/L2
T/L3
Outside box
(FR-HCB)
Reactor 1
(FR-HCL01)
R R2 R2
S S2 S2
T T2 T2
∗2
T
MC
Motor
U
IM
V
W
∗3
Inverter
P/+
∗1
N/-
∗3
5m or less
(16.4feet or less)
High power factor converter
(FR-HC)
MC1
MC1
MC2
MC2
Reactor 2
(FR-HCL02)
R3 R3 R4 R4
S3 S3 S4 S4
T3 T3 T4 T4
R
Phase
S
detection
T
ON OFF
MC
FR-BR
∗4
P TH1
PR
TH2
FR-BU2
PR
A
P/+ B
∗1
N/- C
BUE
∗5
SD
Inverter
Motor
R/L1
U
S/L2 V
T/L3 W
P P/+
∗1
N N/-
RDY MRS
RSO RES
SE
SD
IM