Connection Of The Power Regeneration Common Converter (Fr-Cv) - Mitsubishi Electric FR-A800 Series Instruction Manual

*11 Do not install an MCCB or MC between the reactor and the converter. Doing so disrupts proper operation.
*12 Do not connect anything to terminal P4.
CAUTION
• In the common bus regeneration mode, always connect between the converter terminal RYB and the inverter terminal
to which the X10 (MRS) signal is assigned and between the converter terminal SE and the inverter terminal SD. If the
terminals are not connected, the converter may be damaged.
NOTE
• The control logic (sink logic/source logic) of the converter and the inverter must be matched. The converter does not operate
properly if the control logic is not consistent with each other.
(Refer to
logic of the converter.)
• Keep the wiring length between terminals as short as possible.
• When the power is distorted or falls off sharply, the reactors may generate abnormal acoustic noise. This acoustic noise is
caused by the power supply fault and not by the damage of the converter.
• Configure a system so that the magnetic contactor at the converter input side shuts off the power supply at a failure of the
converter or the connected inverter. (The converter does not shut off the power supply by itself.) Failure to do so may overheat
and burn the resistors in the converter and the connected inverter.
• Do not connect a DC reactor to the inverter when using the converter in the common bus regeneration mode.
• For details on model selection and connection, refer to the FR-XC Instruction Manual.
• For details on connection in common bus regeneration mode with harmonic suppression enabled or in power regeneration
mode 2, refer to the FR-XC Instruction Manual.
2.10.7 Connection of the power regeneration common
When wiring for connecting the power regeneration common converter (FR-CV) to the inverter, make sure to match the terminal
symbols (P/+, N/-) on the inverter and on the power regeneration common converter.
The FR-CV is compatible with the FR-A820-03160(55K) or lower and the FR-A840-01800(55K) or lower.
After making sure that the wiring is correct and secure, set "2 or 102" in Pr.30 Regenerative function selection. (Refer to
page 724.)
Three-phase
AC power
supply
*1 Remove jumpers across terminals R/L1 and R1/L11 as well as across terminals 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, and T/L3). Incorrect connection will damage
the inverter. (The E.OPT fault (Option fault) occurs. (Refer to
*2 Instead of connecting the terminals to the AC power supply, the control circuit can be powered by connecting terminal R1/L11 to terminal P/+ (P3)
and terminal S1/L21 to terminal N/-. In this case, do not connect the terminals to the AC power supply. Doing so will damage the inverter.
*3 Terminal P3 is equipped in the FR-A820-00770(15K) to 01250(22K), and FR-A840-00470(18.5K) to 01800(55K). When connecting multiple
inverters in parallel, always use either terminal P/+ or P3 for the connection. (Do not use terminals P/+ and P3 together.)
*4 When the FR-CV is connected, the jumper across terminals P/+ and P1 does not affect the function. (The FR-CV can be connected with the
jumper connected.)
*5 Do not install an MCCB across 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.
Downloaded from ManualsNet.com
page 72 for the switching of the control logic. Refer to the FR-XC Instruction Manual for the switching of the control
converter (FR-CV)
Dedicated stand-alone
reactor (FR-CVL)
MCCB MC1
search engine
FR-CV type
Power regeneration
common converter
R/L11 R2/L12
R2/L1
S/L21 S2/L22
S2/L2
T/L31 T2/L32
T2/L3
R/L11
S/L21
T/MC1
page 791.))
R/L1
S/L2 
T/L3
R1/L11

S1/L21
Inverter
P1
P/L+ P/+ (P3)   
N/-
N/L-
P24 PC
SD SD

RDYA

RDYB X10 
RSO RES
SE
2. INSTALLATION AND WIRING
2.10 Connection of stand-alone option units
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