Mitsubishi Electric F700 User Manual

36
Connection of stand-alone option units
2.4.2 Connection of the brake unit (BU type)
Connect the brake unit (BU type) correctly as shown below. Incorrect connection will damage the inverter. Remove the
jumper across terminals HB-PC and terminals TB-HC of the brake unit and fit it to across terminals PC-TB.
2.4.3 Connection of the high power factor converter (FR-HC/MT-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.
After making sure that the wiring is correct, set "2" in Pr. 30 Regenerative function selection. (Refer to page 99.)
(1) Connection with the FR-HC (55K or less)
*1 When the power supply is 400V class, install a step-down transformer.
CAUTION
⋅ The wiring distance between the inverter, brake unit and resistor unit should be within 2m. If twisted wires are used, the
distance should be within 5m.
⋅ If the transistors in the brake unit should become faulty, the resistor can be unusually hot, causing a fire. Therefore, install a
magnetic contactor on the inverter's power supply side to shut off a current in case of fault.
⋅ Do not remove a jumper across terminal P/+ and P1 except when connecting a DC reactor.
*1 Remove the jumpers across the inverter terminals R/L1-R1/L11, S/L2-S1/L21, and connect the control circuit power supply to the R1/L11 and
S1/L21 terminals. Always keep the power input terminals R/L1, S/L2, T/L3 open. Incorrect connection will damage the inverter. (E.OPT
(option alarm) will occur. (Refer to page 244.))
*2 Do not insert the MCCB between terminals P/+ − N/- (P/+ − P/+, N/- − N/-). Opposite polarity of terminals N/-, P/+ will damage the inverter.
*3 Use Pr. 178 to Pr. 189 (input terminal function selection) to assign the terminals used for the X10 (X11) signal. (Refer to page 101.)
For communication where the start command is sent only once, e.g. RS-485 communication operation, use the X11 signal when making
setting to hold the mode at occurrence of an instantaneous power failure. (Refer to page 99.)
CAUTION
⋅ 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.
U
V
W
IM
HCHBHA TB
P
OCR
PR
PC
OCR
N
R/L1
S/L2
T/L3
N/−
P/+
MC
MC
OFF
ONMC
Fit a jumper
Remove the
jumper
Electrical-discharge
resistor
Brake unit (BU type)
Motor
Inverter
Three-phase AC
power supply
MCCB
T * 1
Inverter
Outside box
Three-phase
A
C power
supply
MCCB
High power factor converter
(FR-HC)(FR-HCB)
Reactor2
(FR-HCL02)
R/L1
Reactor1
(FR-HCL01)
phase
detection
S/L2
T/L3
P/+
N/-
X11 *3
X10 *3
RES
U
V
W
P
N
Y1orY2
RDY
RSO
MC1
MC2
R4
S4
T4
R
S
T
R4
S4
T4
R3
S3
T3
R3
S3
T3
R2
S2
T2
R2
S2
T2
R
S
T
MC1
MC2
SD
SE
R1/L11
S1/L21
MC
*1
*1
*2
Moto
r
IM

Mitsubishi Electric F700 Specifications

General

Brand	Mitsubishi Electric
Model	F700
Category	Inverter
Language	English