64
Brake unit
FR-BU2-(H)
K
Resistor unit
FR-BR-(H)
K
Discharging resistor
GZG type
GRZG type
Connection diagram
Outline dimension
[FR-BU2]
[GZG,GRZG]
[FR-BR]
Name (model)
Specification and Structure
Resistor unit or
discharging resistor
Brake unit
FR-BU2
PR
N/-
MSG
SD
MSG
SD
P/+
P
A
B
C
PR
*
1
RES
BUE
SD
When connecting
several brake units
U
V
W
P/+
N/-
R/L1
S/L2
T/L3
Motor
Resistor unit or
discharging resistor
Signal for
master/slave
Brake unit
FR-BU2
M
Inverter
PR
N/-
MSG
SD
MSG
SD
P/+
P
A
B
C
PR
Three-phase
AC power supply
NCCB
MC
*
1
RES
BUE
SD
Brake permission signal
Reset
*
2
*
2
*
2
MC
OFF
ON
MC
T
*
3
A jumper is connected across BUE and SD in the
initial status.
When wiring, make sure to match the terminal
symbol (P/+, N/-) at the inverter side and at the
brake unit (FR-BU2) side. Incorrect connection will
damage the inverter.
Remove the jumper across the terminals P/+ and
P1 only when a Filterpack or DC reactor is
connected. Do not remove the jumper in other
cases.
When the power supply is 400V class, install a step-
down transformer.
H
W
D
D
H
W
(Unit mm)
Model
W
H
D
GZG300W
335
78
40
GRZG200
306
55
26
GRZG300
334
79
40
GRZG400
411
79
40
W
H
D
(Unit mm)
Model
W
H
D
FR-BU2-1.5K to 15K
68
128
132.5
FR-BU2-30K
108
128
129.5
FR-BU2-H7.5K, H15K
68
128
132.5
FR-BU2-H30K
108
128
129.5
(Unit mm)
Model
W
H
D
FR-BR-15K
170
450
220
FR-BR-30K
340
600
220
FR-BR-H15K
170
450
220
FR-BR-H30K
340
600
220
Summary of Contents for F720PJ-11KF
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