Mitsubishi Electronics FR-D740-012 ユーザーズマニュアル

I

1.1 Product checking and parts identification......................................... 2
1.2 Inverter and peripheral devices.......................................................... 3

Peripheral devices .......................................................................................................................... 4

1.3 Removal and reinstallation of the cover ............................................ 5

Front cover...................................................................................................................................... 5

Wiring cover.................................................................................................................................... 7

1.4 Installation of the inverter and enclosure design.............................. 8

Inverter installation environment..................................................................................................... 8

Cooling system types for inverter enclosure................................................................................. 10

Inverter placement ........................................................................................................................ 11

2.1 Wiring................................................................................................. 14

Terminal connection diagram ....................................................................................................... 14

2.2 Main circuit terminal specifications................................................. 15

Specification of main circuit terminal ............................................................................................ 15

Terminal arrangement of the main circuit terminal, power supply and the motor wiring............... 15

Cables and wiring length .............................................................................................................. 17

2.3 Control circuit specifications ........................................................... 20

Control circuit terminal .................................................................................................................. 20

Changing the control logic ............................................................................................................ 22

Wiring of control circuit ................................................................................................................. 24

Wiring instructions ........................................................................................................................ 28

Connection to the PU connector................................................................................................... 29

2.4 Connection of stand-alone option unit ............................................. 31

Connection of a dedicated external brake resistor (MRS type, MYS type, FR-ABR)
(FR-D720-025 or more, FR-D740-012 or more, FR-D720S-025 or more) ................................... 31

Connection of the brake unit (FR-BU2) ........................................................................................ 33

Connection of the high power factor converter (FR-HC) .............................................................. 34

Connection of the power regeneration common converter (FR-CV) ............................................ 35

Connection of a DC reactor (FR-HEL).......................................................................................... 35

3 PRECAUTIONS FOR USE OF THE INVERTER

3.1 EMC and leakage currents................................................................ 38

CONTENTS