Connection Of Stand-Alone Option Unit; Connection Of A Dedicated External Brake Resistor (Mrs Type, Mys Type, Fr-Abr) (0.4K Or Higher) - Mitsubishi Electric FR-D720-0.2K-G Instruction Manual

2.4

Connection of stand-alone option unit

The drive unit accepts a variety of stand-alone option units as required.
Incorrect connection will cause drive unit damage or accident. Connect and operate the option unit carefully in accordance
with the corresponding option unit manual.
2.4.1 Connection of a dedicated external brake resistor
(MRS type, MYS type, FR-ABR) (0.4K or higher)
Install a dedicated brake resistor (MRS type, MYS type, FR-ABR) outside when the motor driven by the drive unit 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 on page 15.)
Set parameters below.
Connected Brake Resistor
MRS type, MYS type
MYS type
(used at 100% torque/6%ED)
FR-ABR
FR-D720-0.4K-G, 0.75K-G
Connect the brake resistor across terminals P/+ and PR. Connect the brake resistor across terminals P/+ and PR.
Brake resistor
 Do not remove the jumper across terminals P/+ and P1 except when connecting a DC reactor.
Pr. 30 Regenerative function selection Setting
0 (initial value)
1
1
Jumper
*
Terminal P/+
Terminal PR
Connection of stand-alone option unit
Pr. 70 Special regenerative brake duty Setting
6%
10%
FR-D720-1.5K to 3.7K-G
FR-D740-0.4K to 3.7K-G
Terminal PR
Brake resistor
—
Refer to page
114.
Jumper
*
Terminal P/+
27
2