Mitsubishi Electronics FR-V540-1.5K to 55K ユーザーズマニュアル

3

R, S, T

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 or Mitsubishi dedicated motor.

R1, S1

Power supply for 
control circuit

Connected to the AC power supply terminals R and S. To retain the alarm 
display and alarm output or when using the high power factor converter (FR-
HC) or power regeneration common converter (FR-CV), remove the jumpers 
from terminals R-R1 and S-S1 and apply external power to these terminals.
Do not turn off the power supply for control circuit (R1, S1) with the main 
circuit power (R, S, T) on. Doing so may damage the inverter. The circuit 
should be configured so that the main circuit power (R, S, T) is also turned off 
when the power supply for control circuit (R1, S1) is off.
15K or less: 60VA, 18.5K to 55K: 80VA

P, PR

Brake resistor 
connection

Disconnect the jumper from terminals PR-PX (5.5K or less) and connect the 
optional brake resistor (FR-ABR) across terminals P-PR.
For the 15K or less, connecting the resistor further provides regenerative 
braking power.

P, N

Brake unit 
connection

Connect the optional FR-BU type brake unit, BU type brake unit, power 
regeneration common converter (FR-CV) or high power factor converter 

 

(FR-HC).

P, P1

DC reactor 
connection

Disconnect the jumper from terminals P-P1 and connect the optional DC 
reactor (FR-HEL/BEL).

PR, PX

Built-in brake circuit 
connection

When the jumper is connected across terminals PX-PR (factory setting), 

 

the built-in brake circuit is valid. (Provided for the 5.5K or less.)

Earth (Ground)

For earthing (grounding) the inverter chassis. Must be earthed (grounded).