Instruction manual

INSTALLATION AND WIRING

2.2.5 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 an accident. Connect and operate

the option unit carefully in accordance with the corresponding option unit manual.

(1) Connection of the dedicated external brake resistor (option)

Connect a brake resistor across terminals P (+) and PR. Connect a dedicated brake

resistor only.

(For the locations of terminals P (+) and PR, refer to the terminal block layout (page

22).)

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%)

(2) Connection of the power factor improving DC reactor

Inverter size Brake resistance Reference rated power at brake duty of 10%

001 1000 ohm minimum 180W minimum

002 500 ohm minimum 360W minimum

003 350 ohm minimum 500W minimum

005 200 ohm minimum 800W minimum

007.5 150 ohm minimum 1200W minimum

010 110 ohm minimum 1600W minimum

Connect the power factor

improving DC reactor between

terminals P1-P (+). In this case,

the jumper connected across

terminals P1-P (+) must be

removed. Otherwise, the reactor

will not function.

Note: 1. The wiring distance should be within 5m (16.40 feet).

2. The size of the cables used should be equal to or larger than that of the

power supply cables (R (L

1), S (L2), T (L3)).

Brake resisto

(+)

(-)

Remove the jumper.

(+)

( )

DC reacto

M4500E.book 32 ページ２００５年２月２２日　火曜日　午後５時７分