Mitsubishi Electric FR-A700 Series Installation Manuallines page 12

WIRING
3.2 Main circuit terminal
(1) Main circuit terminal specifications
Terminal
Terminal Name
Symbol
R/L1,
S/L2, AC power input
T/L3
U, V, W Inverter output
R1/L11, Power supply for
S1/L21 control circuit
DC reactor
P/+, P1
connection
P/+, N/-
- --- --- --- --- ---- ---
Earth (Ground)
(2) Terminal layout and wiring
FR-A770-355K, 560K-79
R1/L11 S1/L21
R/L1 S/L2 T/L3 N/-
Power supply
CAUTION
· The power supply cables must be connected to R/L1, S/L2, T/L3. (Phase sequence needs not to be
matched.) Never connect the power cable to the U, V, W of the inverter. Doing so will damage the
inverter.
· Connect the motor to U, V, W. At this time, turning ON the forward rotation switch (signal) rotates the
motor in the counterclockwise direction when viewed from the motor shaft.
· When wiring the inverter main circuit conductor, tighten a nut from the right side of the conductor.
When wiring two wires, place wires on both sides of the conductor. (Refer to the drawing on the right.)
For wiring, use bolts (nuts) provided with the inverter.
9
Connect to the commercial power supply.
Connect a three-phase squirrel-cage motor.
Connected to the AC power supply terminals R/L1 and S/L2. To retain the fault display
and fault output, remove the jumpers across terminals R/L1 and R1/L11 and across S/
L2 and S1/L21, and apply external power supply of 380 to 480VAC to these terminals.
Connect the DC reactor.
Non-connection
For earthing (grounding) the inverter chassis. Must be earthed (grounded).
Charge lamp
Jumper
P/+
P/+
IM
Motor
DC reactor
Description