Mitsubishi Electric FR-HC2-7.5K Instruction Manual page 45

Wiring of main circuit (FR-HC2-7.5K to 75K, FR-HC2-H7.5K to H220K)
(5) Wiring of high power factor converter and inverter
• These units should be connected to transmit commands from the high power factor converter to the inverter securely.
Connection method differs depending on the inverter series. Refer to the Instruction Manual of the inverter when
connecting.
Refer to the below table for the wiring length.
For the wire gauge of the main circuit terminals P/+ and N/- (across P and P, across N and N), refer to 2.6.3 Cable sizes of the
main control circuit terminals and earth (ground) terminals (refer to page 31).
Converter
(FR-HC2)
∗1
R4/
P/+
L14
S4/ N/-
L24
T4/
L34
RDY
Control
RSO
circuit
SE
Cable gauge for the
control circuit
<Wiring example of 7.5K>
88R 88S A B
NC NC NC RDY RSO
NC NC NC NC SE SE

The terminal arrangement in the main circuit differs by capacity. Check the terminal arrangement on 2.6.2 Terminal arrangement of the main circuit terminal
(refer to page 28).
Across terminals P and P
Total wiring
Across terminals N and N
length
Other control signal lines
NOTE
 The converter operates as a common converter. Use terminals P/+ and N/- to connect it with the inverter. Do not
connect anything to the inverter power input terminals R/L1, S/L2, and T/L3. Incorrect connection to the inverter
power input will damage the inverter. Connecting opposite polarity of terminals P/+ and N/- will damage the inverter
and the converter.
 Do not connect the DC reactor to the inverter when using a high power factor converter.
38

Installation of a fuse is recommended to avoid the damage to spread in case of an
Inverter
inverter failure. Select a fuse according to the motor capacity. When using a motor, of
P/+
∗3 which the capacity is smaller than the inverter capacity by two ranks or more, select the
N/-
fuse with the capacity that is one rank lower than the inverter capacity. Refer to the fuse
selection table on page 11, 13.
When connecting several inverters, the wire gauge of terminal P/+ and N/- should be
∗2
X10
same as the wire gauge of the inverter's power supply side. (Refer to the Instruction
RES
Manual of the inverter.)
SD

The function of the inverter terminal, which is connected to the terminal RDY of the
converter, needs to be set at the inverter side.

Refer to the Instruction Manual of the inverter.
2
0.75 to 1.25mm
Do not insert MCCB between terminals P/+ and N/- (P and P, N and N).
Converter
R1/L11 S1/L21 N/- P/+
88R 88S A B C NC AM 5 X1 X2
NC NC NC RDY RSO CVO Y1 PC PC RES SOF ROH
R4 S4/
R/L1 S/L2 T/L3 T4/
/L14
NC NC NC NC SE SE SE Y2 PC FM SD SD SD L24 L34
C NC AM 5 X1 X2
CVO Y1 PC PC RES SOF ROH
SE Y2 PC FM SD SD SD
50m or less
30m or less
Inverter
N/- P/+
A1 B1 C1 A2 B2 C2 10E 10 2 5 4
X10 RM RH RT AU STOP MRS RES SD FM AM 1
SE RUN SU IPF OL FU SD SD STF STR JOG CS PC
A1 B1 C1 A2 B2
RM RH RT AU
X10
SE RUN SU IPF OL FU
C2 10E 10 2 5 4
STOP MRS RES SD FM AM 1
SD SD STF STR JOG CS PC