Mitsubishi Electric 800 Series Instruction Manual page 69

Connection of stand-alone option units

Never connect the power supply to terminals R/L1, S/L2, and T/L3 on the inverter. Incorrect connection will damage the inverter and the
converter.

Remove the jumper across terminals P/+ and P1.

Connect between the inverter terminal P/+ and the converter terminal P/+ 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 terminals R/L1, S/L2, and T/L3.
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.

Assign the X10 signal to any of the input terminals.

To use separate power supply for the control circuit, remove each jumper at terminal R1/L11 and terminal S1/L21.

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.
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.
68
INSTALLATION AND WIRING