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Connection Of The High Power Factor Converter (fr-hc); Installation Of Power Factor Improving Reactor - Mitsubishi Electric FR-E700 Instruction Manual

Fr-e740-016 to 300 - ec; fr-e720s-008 to 110 - ec.
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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 (+ and -) 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. Even
when the wiring is twisted, the cable length must not exceed 10m.
∗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 + 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
Keep input terminals (R/L1, S/L2, T/L3) open. Incorrect connection will damage the inverter.
∗2
Do not insert an MCCB between the terminals + and - (between P and +, between N and -). Opposite polarity of terminals - and + will damage the
inverter.
∗3
Use Pr. 178 to Pr. 184 (input terminal function selection) to assign the terminals used for the X10, RES signal. (Refer to page 130)
∗4
Be sure to connect terminal RDY of the FR-HC to the X10 signal or MRS signal assigned terminal of the inverter, and connect terminal SE of the
FR-HC to terminal SD of the inverter. Without proper connecting, FR-HC will be damaged.
NOTE
The voltage phases of terminals R/L1, S/L2, T/L3 and terminals R4, S4, T4 must be matched.
Use sink logic when the FR-HC is connected. The FR-HC cannot be connected when source logic (factory setting) is
selected.
Do not remove a jumper across terminal + 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
+
∗1
-
∗3
5m or less
High power factor converter
(FR-HC)
MC1
MC1
MC2
MC2
Reactor 2
(FR-HCL02)
R3
R3
R4
R4
S4
S4
S3
S3
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
∗1
S/L2
V
T/L3
W
P
+
∗2
N
-
∗4
∗3
RDY
X10
∗3
RSO
RES
SE
SD
IM

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Fr-e740ec

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