Mitsubishi FR-A800

Connection of stand-alone option units
76
INSTALLATION AND WIRING
2.9.5 Connection of the high power factor converter
(FR-HC2)
When connecting the high power factor converter (FR-HC2) to suppress power harmonics, perform wiring securely as shown
below. Incorrect connection will damage the high power factor converter and the inverter.
After making sure that the wiring is correct, set "rated motor voltage" in Pr.19 Base frequency voltage (under V/F control) or
Pr.83 Rated motor voltage (under other that V/F control) and "2" in Pr.30 Regenerative function selection. (Refer to page
614.)
NOTE
• The voltage phases of terminals R/L1, S/L2, and T/L3 and the voltage phases of terminals R4/L14, S4/L24, and T4/L34 must
be matched.
• The control logic (sink logic/source logic) of the high power factor converter and the inverter must be matched. (Refer to page
49.)
• Do not connect a DC reactor (FR-HEL) to the inverter when FR-HC2 is connected.
 Remove jumpers between terminal R/L1 and R1/L11 as well as between S/L2 and S1/L21, and connect the power supply for the control
circuit to terminals R1/L11 and S1/L21. Do not connect anything to power input terminals (R/L1, S/L2, T/L3). Incorrect connection will
damage the inverter. (E.OPT (option fault) will occur. (Refer to page 657.)
 Do not install an MCCB across the terminals P/+ and N/- (across terminals P and P/+ or across N and N/-). Connecting the opposite
polarity of terminals N/- and P/+ will damage the inverter.
 Use Pr.178 to Pr.189 (input terminal function selection) to assign the terminals used for the X10 (X11) signal. (Refer to page 430.)
For RS-485 or any other communication where the start command is only transmitted once, use the X11 signal to save the operation
mode at the time of an instantaneous power failure.
 Assign the IPF signal to an FR-HC2 terminal. (Refer to the Instruction Manual of FR-HC2.)
 Always connect the FR-HC2 terminal RDY to a terminal where the X10 signal or MRS signal is assigned in the inverter. Always connect
the FR-HC2 terminal SE to the inverter terminal SD. Not connecting these terminals may damage the FR-HC2.
 Always connect the R/L1, S/L2, and T/L3 terminals of FR-HC2 to the power supply. Operating the inverter without connecting them will
damage the FR-HC2.
 Do not install an MCCB or MC between the reactor 1 terminals (R/L1, S/L2, T/L3) and the FR-HC2 terminals (R4/L14, S4/L24, T4/L34). It
will not operate properly.
 Securely perform grounding (earthing) by using the grounding (earthing) terminal.
 Installation of a fuse is recommended. (Refer to the Instruction Manual of FR-HC2.)
 Outside box is not available for FR-HC2-H280K or higher. Connect filter capacitors, inrush current limit resistors, and magnetic
contactors. (Refer to the Instruction Manual of FR-HC2.)
ROH2
ROH1
Outside box
(FR-HCB2)
Inverter
High power
factor converter
(FR-HC2)
Reactor2
(FR-HCL22)
Motor
M
Reactor1
(FR-HCL21)
P/+P/+
N/-
N/-
R1/L11
S1/L21
X10
X11
SD
RDY
RSO
SE
R/L1
Earth
(ground)
S/L2
T/L3
Three-phase
A
C power
supply
U
V
W
R1/L11
S1/L21
88R
88R
88S
88S
ROH
SD
MCCB
MC
R4/
L14
R4/L14
S4/
L24
S4/L24
T4/
L34
T4/L34
R3/
L13
R3/
L13
S3/
L23
S3/
L23
T3/
L33
T3/
L33
R2/
L12
R2/
L12
S2/
L22
S2/
L22
T2/
L32
T2/
L32
R/
L1
S/
L2
T/
L3
R/L1
S/L2
T/L3
RES
IPF
Fuse
∗3
∗5
∗3
∗2
∗4
∗8
∗7
∗7
∗6
∗8
∗8
∗7
∗10
∗7
∗9
∗1
∗8
∗8