Mitsubishi Electric FR-A700 Instruction Manual page 24

• FR-A720-11K or more, FR-A740-11K or more
1) Remove the upper screws.
2) Remove the lower screws.
3) Pull the jumper toward you to
remove.
4) Connect the separate power supply
cable for the control circuit to the
upper terminals (R1/L11, S1/L21).
Never connect the power cable to
the terminals in the lower stand.
Doing so will damage the inverter.
CAUTION
· Do not turn off the control power (terminals R1/L11 and S1/L21) with the main circuit power (R/L1, S/L2, T/L3) on. Doing so may
damage the inverter.
· Be sure to use the inverter with the jumpers across terminals R/L1-R1/L11 and S/L2-S1/L21 removed when supplying power from
other sources. The inverter may be damaged if you do not remove the jumper.
· The voltage should be the same as that of the main control circuit when the control circuit power is supplied from other than the
primary side of the MC.
· The power capacity necessary when separate power is supplied from R1/L11 and S1/L21 differs according to the inverter capacity.
200V class
400V class
· When the power supply used with the control circuit is different from the one used with the main circuit, make up a circuit which will
switch off the main circuit power supply terminals R/L1, S/L2, T/L3 when the control circuit power supply terminals R1/L11, S1/L21
are switched off.
· If the main circuit power is switched off (for 0.1s or more) then on again, the inverter resets and an alarm output will not be held.
R1/ S1/
L11 L21 Power supply
terminal block
for the control circuit
R/L1S/L2 T/L3
MC
Main power supply
FR-A720-11K,
FR-A740-11K, 15K
Power supply
terminal block for
the control circuit
11K or less 15K or less
60VA
60VA
FR-A720-15K, 18.5K, 22K,
FR-A740-18.5K, 22K
18.5K or more
80VA 80VA
60VA 80VA
Wiring
3)
Power supply terminal block
for the control circuit
R1/L11
S1/L21
1)
2)
4)
FR-A720-30K or more,
FR-A740-30K or more
U V W
19
2