Mitsubishi Electric FR-CC2-P Instruction Manual page 41

Main circuit terminals (for 12-phase rectification)
2.6.4
Wiring method
• In the initial status, terminals R/L1 and R2/L12, S/L2 and S2/L22, and T/L3 and T2/L32 of the converter unit are
respectively shorted with shorting conductors. For 12-phase rectification, remove the bolts and nuts shown in the figure
below to remove the shorting conductors.
Shorting conductor
• As shown below, make sure to connect the output terminals in the star connection of the 12-phase rectifier power
transformer (3-winding transformer) with terminals R/L1, S/L2, and T/L3 of the converter unit. Likewise, connect the output
terminals in the delta connection of the transformer with terminals R2/L12, S2/L22, and T2/L32 of the converter unit. (Use
the bolts and nuts removed earlier for these connections.)
Connect these terminals with the
output terminals in the star connection
of the power transformer.
Connect these terminals with the
output terminals in the delta
connection of the power transformer.
NOTE
• Make sure to connect the power cables to the right terminals: one set to terminals R/L1, S/L2, and T/L3, and the other set
to terminals R2/L12, S2/L22, and T2/L32.
40
INSTALLATION AND WIRING
R/L1 S/L2 T/L3
S2/L22
T2/L32
R2/L12
R1/L11 S1/L21
Charge lamp
Jumper
R/L1 T/L3
S/L2
R2/L12 S2/L22 T2/L32
P/+
N/-
To inverter