Connection Of Stand-Alone Option Units; Connection Of The External Brake Resistor - Mitsubishi Electric FR-V560 Instruction Manual

Vector inverter

Table of Contents

1.6 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 corresponding option unit manual.

1.6.1

Connection of the external brake resistor

The built-in brake resistor is connected across terminals P and PR. Fit the external brake resistor when the built-in

brake resistor does not have enough thermal capability for high-duty operation. At this time, remove the jumper from

across terminals PR-PX and connect the external brake resistor across terminals P-PR.

The external brake resistor should be as listed in the following table. Selected the rated power of the brake resistor

according to the brake duty. (The rated power indicated below assumes that the brake resistor duty is 10%)

Inverter

Brake resistance specification

(wattage at 10% ED)

capacity

2.2K

350Ω (500W)

3.7K

200Ω (800W)

7.5K

110Ω (1600W)

15K

55Ω (3200W)

CAUTION

1. The brake resistor connected should only be the dedicated brake resistor.

2. The jumper across terminals PR-PX (7.5K or less) must be disconnected before connecting the

external brake resistor. A failure to do so may damage the inverter.

Model ..... FR-V560-2.2K, 3.7K, 7.5K-NA

1)Remove the screws in terminals PR and PX and remove the jumper

2)Connect the brake resistor across terminals P and PR. (The jumper should remain disconnected.)

1) Removal of jumper

Terminal PR

Jumper

Model ..... FR-V560-15K-NA

Connect the brake resistor across terminals P and PR.

2) Connection of brake resistor

Terminal P

Terminal PX

External brake resistor