Справочник Пользователя для Mitsubishi Electronics FR-D720-008

2.4 Connection of stand-alone option unit

The inverter accepts a variety of stand-alone option units as required.
Incorrect connection will cause inverter damage or accident. Connect and operate the option unit carefully in accordance with
the corresponding option unit manual.

Install a dedicated brake resistor (MRS type, MYS type, FR-ABR) outside when the motor driven by the inverter is made to run
by the load, quick deceleration is required, etc. Connect a dedicated brake resistor (MRS type, MYS type, FR-ABR) to
terminal P/+ and PR. (For the locations of terminal P/+ and PR, refer to the terminal block layout (page 15).)
Set parameters below.

∗1

Do not remove a jumper across terminal P/+ and P1 except when connecting a DC reactor.

∗2

The shape of jumper differs according to capacities.

Pr. 70 Special regenerative brake duty Setting

MRS type, MYS type

0 (initial value)

—

MYS type (used at 100% 

torque/6%ED)

1

6%

FR-ABR

1

10%

NOTE

Connect the brake resistor across terminals P/+ and PR. Connect the brake resistor across terminals P/+ and PR.

Connect the brake resistor across terminals P/+ and PR.

Terminal P/+

Brake resistor

Jumper 

*1

Terminal PR

Terminal PR

Brake resistor

Jumper 

*1, *2

Terminal P/+

Terminal PR

Brake resistor

Jumper 

*1

Terminal P/+