10
Wiring
2.4.2 Specification of main circuit terminal
∗1 When using single-phase power input, terminals are R/L1 and S/L2.
∗2 Terminal P1 is not available for single-phase 100V power input model.
2.4.3 Terminal arrangement of the main circuit terminal, power supply and the motor
wiring
zThree-phase 200V class
* For wiring to earth (ground) terminals of FR-D720-5.5K and 7.5K, use the earthing cable wiring space (marked with an arrow) to route the wires.
Term inal
Symbol
Terminal Name Description
R/L1,
S/L2,
T/L3
∗1
AC power input
Connect to the commercial power supply.
Keep these terminals open when using the high power factor converter (FR-HC) or
power regeneration common converter (FR-CV).
U, V, W Inverter output Connect a three-phase squirrel-cage motor.
P/+, PR Brake resistor connection
Connect a brake resistor (FR-ABR, MRS type, MYS type) across terminals P/+ and PR.
(The brake resistor can not be connected to the 0.1K and 0.2K.)
P/+, N/- Brake unit connection
Connect the brake unit (FR-BU2), power regeneration common converter (FR-CV)
or high power factor converter (FR-HC).
P/+, P1
∗2 DC reactor connection
Remove the jumper across terminals P/+ and P1 and connect a DC reactor.
Single-phase 100V power input model is not compatible with DC reactor.
Earth (Ground) For earthing (grounding) the inverter chassis. Must be earthed (grounded).
FR-D720-0.1K to 0.75K FR-D720-1.5K to 3.7K
FR-D720-5.5K, 7.5K FR-D720-11K, 15K
Screw size
(M3.5)
MotorPower supply
N/-
P/+ PR
IM
R/L1 S/L2 T/L3
Jumpe
Screw size (M3.5)
Screw size
(M4)
Motor
Power supply
N/-
P/+
PR
IM
R/L1 S/L2 T/L3
Jumper
Screw size (M4)
Power supply Motor
IM
Screw size (M5)
Screw size (M5)
Jumper
N/-
P/+ PR
R/L1 S/L2 T/L3
N/-
P/+
PR
R/L1 S/L2 T/L3
Screw size
(M5)
IM
Screw size (M5 for 11K, M6 for 15K)
Jumper
Power supply
Motor