Mitsubishi FR-A740-00023-EC - 1.2 Inverter and peripheral devices

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1 OUTLINE 1
1.1 Product checking and parts identification ........................................................ 2
1.2 Inverter and peripheral devices.......................................................................... 3
1.2.1 Peripheral devices ..................................................................................................................... 4
1.3 Method of removal and reinstallation of the front cover.................................. 5
1.4 Installation of the inverter and enclosure design ............................................. 7
1.4.1 Inverter installation environment................................................................................................ 7
1.4.2 Cooling system types for inverter enclosure.............................................................................. 9
1.4.3 Inverter placement ..................................................................................................................... 9
2 WIRING 11
2.1 Wiring.................................................................................................................. 12
2.1.1 Terminal connection diagram .................................................................................................. 12
2.1.2 EMC filter................................................................................................................................. 13
2.2 Main circuit terminal specifications ................................................................. 14
2.2.1 Specification of main circuit terminal ....................................................................................... 14
2.2.2 Terminal arrangement of the main circuit terminal, power supply and the motor wiring. ........ 15
2.2.3 Cables and wiring length ......................................................................................................... 18
2.2.4 When connecting the control circuit and the main circuit separately
to the power supply (separate power) ..................................................................................... 21
2.3 Control circuit specifications ........................................................................... 23
2.3.1 Control circuit terminals ........................................................................................................... 23
2.3.2 Changing the control logic ....................................................................................................... 26
2.3.3 Control circuit terminal layout .................................................................................................. 28
2.3.4 Wiring instructions ................................................................................................................... 29
2.3.5 When connecting the operation panel using a connection cable ............................................ 30
2.3.6 RS-485 terminal block ............................................................................................................. 30
2.3.7 Communication operation........................................................................................................ 30
2.4 Connection of motor with encoder (vector control) ....................................... 31
2.5 Connection of stand-alone option units .......................................................... 37
2.5.1 Connection of the dedicated external brake resistor (FR-ABR)
(00620 or less)......................................................................................................................... 37
2.5.2 Connection of the brake unit (FR-BU2) ................................................................................... 40
2.5.3 Connection of the brake unit (FR-BU/MT-BU5) ....................................................................... 42
2.5.4 Connection of the brake unit (BU type) ................................................................................... 44
2.5.5 Connection of the high power factor converter (FR-HC/MT-HC)............................................. 44
2.5.6 Connection of the power regeneration common converter (FR-CV)
(01800 or less)......................................................................................................................... 46
CONTENTS