Connection Of Stand-Alone Option Units; Connection Of The Brake Resistor (Fr-E820-0030(0.4K) Or Higher, Fr-E840-0016(0.4K) Or Higher, And Fr-E820S-0030(0.4K) Or Higher) - Mitsubishi Electric 800 Series Instruction Manual

2.9

Connection of stand-alone option units

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 Instruction Manual of the corresponding option unit.
2.9.1 Connection of the brake resistor (FR-E820-
0030(0.4K) or higher, FR-E840-0016(0.4K) or
higher, and FR-E820S-0030(0.4K) or higher)
• Install a dedicated brake resistor (MRS, MYS, or FR-ABR) outside when the motor driven by the inverter is made to run by
the load, quick deceleration is required, etc. Connect the brake resistor (MRS, MYS, or FR-ABR) to terminals P/+ and PR.
(For the locations of terminals P/+ and PR, refer to the terminal block layout
Set parameters as follows.
Connected brake resistor
MRS, MYS
MYS used at 100% torque / 6%ED
FR-ABR
FR-E820-0030(0.4K) to 0050(0.75K), FR-E820S-0030(0.4K)
Connect a brake resistor across terminals P/+ and PR.
Jumper
Brake resistor
FR-E820-0240(5.5K), 0330(7.5K)
Connect a brake resistor across terminals P/+ and PR.

Jumper
Brake resistor
*1 Do not remove the jumper across terminals P/+ and P1 except when connecting a DC reactor (FR-HEL).
Setting of Pr.30 Regenerative
function selection
0 (initial value)
1
1

Terminal P/+
Terminal PR
Terminal P/+
Terminal PR
(page 46).)
Setting of Pr.70 Special regenerative
—
6%
10%
FR-E820-0080(1.5K) to 0175(3.7K)
FR-E840-0016(0.4K) to 0095(3.7K)
FR-E820S-0050(0.75K) to 0110(2.2K)
Connect a brake resistor across terminals P/+ and PR.
Terminal PR
Brake resistor
FR-E840-5.5K(0120), 7.5K(0170)
Connect a brake resistor across terminals P/+ and PR.
Jumper
Terminal P/+
Brake resistor
2.9 Connection of stand-alone option units
brake duty
Terminal P/+

Jumper

Terminal PR
2. Installation and Wiring
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