Mitsubishi Electric 800 Series Instruction Manual page 72


Connect between the inverter terminal P/+ and the converter terminal P4 and between the inverter terminal N/- and the converter terminal N/- for
polarity consistency.
Connecting opposite polarity of terminals P/+ and N/- will damage the converter and the inverter.

Confirm the correct phase sequence of three-phase current to connect between the reactor and the converter, and between the power supply
and the reactor.
Incorrect connection will damage the converter.

Be sure to connect the power supply and terminals R/L1, S/L2, and T/L3 of the converter. Operating the inverter without connecting them will
damage the converter. A branch point to each of these terminals must be placed between the power supply and the AC reactor.

Install the AC reactor between the node points joined to the converter terminals R/L1, S/L2, and T/L3 and the node points joined to the FR-XCL
reactor. To select an appropriate model, refer to the FR-XC Instruction Manual.

To use separate power supply for the control circuit, remove each jumper at terminal R1/L11 and terminal S1/L21.

To select an appropriate MCCB, refer to the FR-XC Instruction Manual.

Install UL listed fuses on the input side of the reactor to meet the UL/cUL standards (refer to the FR-XC Instruction Manual for information about
the fuse).

Do not install an MCCB or MC between the reactor and the converter. Doing so disrupts proper operation.
2.11.6
Connection of the power regeneration common
converter (FR-CV)
When connecting the power regeneration common converter (FR-CV), connect the inverter terminals (P/+, N/-) and the power
regeneration common converter (FR-CV) terminals as shown below so that their symbols match with each other.
The FR-CV is applicable to FR-A846-01800(55K) or lower.
After making sure that the wiring is correct, set "2" in Pr.30 Regenerative function selection.
MCCB
Three-phase
AC power
supply

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.

Remove the jumper across terminals P/+ and P1.

Do not insert an MCCB between terminals P/+ and N/- (between terminals P/L+ and P/+ or between N/L- 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 signal.

Be sure to connect the power supply and terminals R/L11, S/L21, and T/MC1. Operating the inverter without connecting them will
damage the power regeneration common converter.

Always connect terminal RDYB of the FR-CV to the inverter terminal where the X10 signal or the MRS signal is assigned to. Always
connect terminal SE of the FR-CV to the inverter terminal SD. Not connecting these terminals may damage the FR-CV.
NOTE
• The voltage phases of terminals R/L11, S/L21, and T/MC1 and the voltage phases of terminals R2/L1, S2/L2, and T2/L3 must
be matched.
• Use the sink logic (initial setting for the FM type) when the FR-CV is connected. It cannot be connected when the source logic
is selected.
• For the parameter details, refer to the FR-A800 Instruction Manual (Detailed).
Dedicated stand-alone
reactor (FR-CVL)
MC1
R/L11 R2/L12
S/L21 S2/L22
T/L31 T2/L32
Connection of stand-alone option units
R/L1
S/L2
T/L3
FR-CV type
Power regeneration
common converter
P1
R2/L1
∗2
S2/L2 P/L+ P/+
T2/L3 N/-
N/L-
P24 PC
R/L11
SD SD
S/L21
∗5
RDYA
∗6
T/MC1
RDYB X10
RSO RES
SE
INSTALLATION AND WIRING
U
∗1
V M
W
Inverter
∗3
∗4
71
2