Filter
Top Products
28
Connection of stand-alone option unit
(2) Connection example with the FR-BR(-H) type resistor
2.4.3 Connection of the DC reactor (FR-HEL)
When using the DC reactor (FR-HEL), connect it across terminals P/+ and P1.
In this case, the jumper connected across terminals P/+ and P1 must be removed. Otherwise, the reactor will not exhibit its
performance.
∗1 Connect the inverter terminals (P/+ and 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. 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 the jumper across terminals P/+ and P1 except when connecting a DC reactor.
NOTE
The wiring distance should be within 5m.
The size of the cables used should be equal to or larger than that of the power supply cables (R/L1, S/L2, T/L3). (Refer
to page 17)
U
V
W
P/+
N/-
R/L1
S/L2
T/L3
Motor
IM
PR
N/-
BUE
SD
P/+
P
A
B
C
FR-BU2
FR-BR
TH2
TH1
PR
MCCB MC
OFFON
MC
Three-phase AC
power supply
Inverter
5m or less
T
MC
∗1
∗3
∗3
∗2
∗4
∗5
∗1
P1
FR-HEL
Remove the jumper.
P/+