Mitsubishi Electric FR-HC2-7.5K Instruction Manual page 46

Wiring of main circuit (FR-HC2-7.5K to 75K, FR-HC2-H7.5K to H220K)
(6) Wiring reactor 1 and converter
Supply power to the power detecting terminals (R/L1, S/L2, T/L3) separately from the main circuit wiring.
Reactor 1
(FR-HCL21)
R/ R2/
L1 L12
S2/
S/
Power
L22
L2
supply
T/ T2/
L3 L32
Total wiring
10m or less
length
2
Cable gauge
1.25mm
NOTE
 The terminal R/L1, S/L2 and T/L3 of the converter are control terminals to detect power supply phases of the power
supply. The voltage phases of the terminals R4/L14, S4/L24, and T4/L34 and the terminals R/L1, S/L2, and T/L3 must
be matched. If these terminals are not connected correctly, the converter does not operate properly.
 If the inverter is operated without connecting the terminals R, S, T of the converter to the power supply, the converter
will be damaged.
(7) Wiring of the power supply and inverter
For the inverters equipped with the control circuit power supply terminals (R1/L11 and S1/L21), connect the control circuit
power supply terminals (R1/L11 and S1/L21) directly to the power supply. Do not connect through the converter.
Inverter control power
MCCB
Power
supply
Cable gauge
0.75 to 2mm
NOTE
 Refer to the Instruction Manual of the inverter, and remove the jumpers across terminals R/L1and R1/L11 and across
terminals S/L2 and S1/L21 on the inverter main circuit.
 For the inverters equipped with the control circuit power supply terminals (R1/L11 and S1/L21), always connect the
power supply to the terminals. Inverter control power is provided. If not connected, the inverter may trip or be
damaged.
 Power supply and the inverter are not connected for the inverters not equipped with control circuit power supply
terminals (R1/L11 and S1/L21).
<Wiring example of 7.5K>
Converter
(FR-HC2)
R/L1
S/L2
T/L3
R1/L11
Power
S1/L21
supply
Jumper
(The jumper is connected
inside the converter.)

The terminal arrangement differs by capacity. Check the terminal arrangement on 2.6.2
Terminal arrangement of the main circuit terminal (refer to page 28) and 6.3 Outline dimensions
(refer to page 150).
R1/L11
S1/L21
2
Reactor 1
R/ S/ T/
R2/ T2/
S2/
L12
L1 L2 L22 L3 L32
R1/L11
S1/L21
Converter
R1/L11 S1/L21 P/+
N/-
R/ S/ T/
R4 S4/
T4/
L1 L2 L3 /L14 L24 L34
2
39