Main Circuit Terminal Specifications; Specification Of Main Circuit Terminal - Mitsubishi Electric FR-D720-070 Instruction Manual

2.2

Main circuit terminal specifications

2.2.1

Specification of main circuit terminal

Terminal
Terminal Name
Symbol
R/L1,
S/L2, AC power input
T/L3 *
U, V, W Inverter output
P/+, PR Brake resistor connection
P/+, N/- Brake unit connection
P/+, P1 DC reactor connection
Earth (Ground)
* When using single-phase power input, terminals are R/L1 and S/L2.
2.2.2 Terminal arrangement of the main circuit terminal, power supply and the motor
wiring
Three-phase 200V class
FR-D720-008 to 042
Screw size (M3.5)
N/- P/+ PR
R/L1 S/L2 T/L3
Screw size
(M3.5) IM
Power supply Motor
FR-D720-238, 318
Screw size (M5)
N/- P/+ PR R/L1 S/L2 T/L3
Jumper
IM
Power supply Motor
* For wiring to earth (ground) terminals of FR-D720-238 and 318, use the earthing cable wiring space (marked with an arrow) to route the wires.
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Main circuit terminal specifications

Description
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).
Connect a three-phase squirrel-cage motor.
Connect a brake resistor (FR-ABR, MRS type, MYS type) across terminals P/+ and PR.
(The brake resistor can not be connected to the FR-D720-008 and 014 and FR-
D720S-008 and 014.)
Connect the brake unit (FR-BU2), power regeneration common converter (FR-CV)
or high power factor converter (FR-HC).
Remove the jumper across terminals P/+ and P1 and connect a DC reactor.
For earthing (grounding) the inverter chassis. Must be earthed (grounded).
FR-D720-070 to 165
Jumper
Jumper
N/- P/+
R/L1 S/L2 T/L3
PR
Power supply
Screw size (M5)
Screw size (M4)
2
IM
Screw size
(M4)
Motor
15