Main Circuit Connection - Mitsubishi Electric FR-D720S SC EC Instruction Manual

Main circuit connection

3.3 Main circuit connection
3.3.1 Specification of main circuit terminal
Terminal
R/L1,
S/L2,
T/L3
U, V, W
P/+ , PR
P/+ , N/–
P/+ , P1
Tab. 3-2: Specification of main circuit terminal
When using single-phase power input, terminals are L1 and N.
Indicated as "+" on the terminal block of the single-phase power input model.
Indicated as "–" on the terminal block of the single-phase power input model.
3.3.2 Terminal layout and wiring
Single-phase, 200V class
Tab. 3-3: Terminal layout and wiring
3 - 6
Name Description
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).
Inverter output Voltage ouput of the inverter
(3~, 0V–power supply voltage, 0.2–400Hz)
Brake resistor Connect a brake transistor (FR-ABR) across terminals P/+ and PR.
connection (The brake resistor can not be connected to the FR-D720S-008SC and
014SC.)
Brake unit connection Connect the brake unit (FR-BU2), power regeneration common converter (FR-
CV) or high power factor converter (FR-HC) across terminals P/+ and N/–.
DC reactor Remove the jumper across terminals P/+ and P1 and connect a DC reactor.
connection
PE For earthing the inverter chassis. Must be earthed.
FR-D720S-008SC to 042SC
Screw size (M3,5)
Screw size
(M3,5) M
3~
L1N
Motor
Power supply
FR-D720S-070SC and 100SC
Jumper
I002032E
Jumper
Screw size (M4)
M
Screw size
3~
(M4)
L1 N
Motor
Power supply
Wiring
I002033E