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Connection example with the FR-BR(-H) type resistor
Three-phase AC
power supply
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.)
When the power supply is 400V class, install a stepdown transformer.
The wiring distance between the inverter, brake unit (FR-BU2) and resistor unit (FR-BR) should be within 5m each.
Even when the wiring is twisted, the cable length must not exceed 10m.
The contact between TH1 and TH2 is closed in the normal status and is open at a fault.
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 Filterpack or a DC reactor.
MCCB
MC
R/L1
S/L2
T/L3
Inverter
Connection of stand-alone option unit
T
MC
Motor
U
P
M
V
PR
W
PR
P/+
P/+
N/-
N/-
BUE
SD
5m or less
ON
OFF
MC
FR-BR
TH1
TH2
FR-BU2
A
B
C
2
37
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