Wiring
61
2
Wiring between the power supply and the converter
Supply power to the power detecting terminals (R/L1, S/L2, and T/L3) separately from the main circuit wiring.
NOTE
• The terminals R/L1, S/L2, and T/L3 on the converter are control terminals to detect power phases of the power supply. For
wiring, the voltage phase must be consistent between terminals R2/L12, S2/L22, and T2/L32 and terminals R/L1, S/L2, and
T/L3. If these terminals are not connected correctly, the converter does not operate properly.
• If the inverter is operated while the converter terminals R/L1, S/L2, and T/L3 are not connected to the power supply, the
converter will be damaged.
Wiring of the power supply and the inverter (equipped with terminals R1/
L11 and S1/L21)
For the power input to the control circuit in the inverter which has the control circuit power supply terminals (R1/L11 and S1/
L21), bypass the converter and perform the direct wiring between the inverter (these terminals) and the power supply.
NOTE
• Remove jumpers across main circuit terminals R/L1 and R1/L11 and across S/L2 and S1/L21 on the inverter (refer to the
Instruction Manual of the inverter).
• Always connect the power supply to terminals R1/L11 and S1/L21 of the inverter directly to supply power to the control circuit.
If they are not connected, the inverter may shut off its output by a fault occurrence or be damaged.
Multifunction regeneration
converter
Dedicated reactor
R/L1
S/L2
T/L3
R1/L11
S1/L21
R/L1
S/L2
T/L3
Power
supply
R2/L12
S2/L22
T2/L32
Jumper
Cable gauge
1.25 mm
2
Total wiring length
10 m or shorter
Power for inverter
control circuit
R1/L11
S1/L21
MCCB
Power
supply
Cable gauge
0.75 to 2 mm
2
Summary of Contents for FR-XC-11K
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