Mitsubishi Electric FR-A700 Technical Manual page 7

3.6.10 Twisted/shielded cables ........................................................................................................................................................... 535
3.6.11 Notes on installation of inverter in an enclosure ...................................................................................................................... 536
3.7 Enclosure design ......................................................................................................................................... 543
3.7.1 Inverter installation environment .............................................................................................................................................. 543
3.7.2 Heat generated by inverter and related devices ...................................................................................................................... 545
3.7.3 Specification of enclosed enclosure ......................................................................................................................................... 548
3.7.4 Cooling of inverter enclosure ................................................................................................................................................... 549
3.8 Meters and measurement methods ............................................................................................................ 550
3.8.1 Measurement of powers .......................................................................................................................................................... 550
3.8.2 Measurement of voltages and use of PT ................................................................................................................................. 550
3.8.3 Measurement of currents ......................................................................................................................................................... 551
3.8.4 Use of CT and transducer ........................................................................................................................................................ 551
3.8.5 Measurement of inverter input power factor ............................................................................................................................ 551
3.8.6 Measurement of converter output voltage (across terminals P-N) ........................................................................................... 551
3.8.7 Measurement of inverter output frequency .............................................................................................................................. 551
3.9 Compliance with standards ........................................................................................................................ 552
3.9.1 Compliance with the UL and CSA standards ........................................................................................................................... 552
3.9.2 Compliance with the EU Directives .......................................................................................................................................... 554
4 PRACTICAL CIRCUIT
4.1 Standard connection diagram (common) ...................................................................................................... 558
4.1.1 The inverter equipped with magnetic contactor on primary side (FR-AX manual controller used) (common) ........................ 558
4.1.2 The inverter equipped with magnetic contactor on primary side (with FR-BU2 type brake unit) (common) ........................... 559
4.1.3 The inverter equipped with magnetic contactor on primary side (with high-duty brake resistor) (A700) ................................. 560
4.1.4 The inverter without magnetic contactor on the primary side (common) ................................................................................ 561
4.2 Remote operation (common) ......................................................................................................................... 562
4.2.1 Use of the FR-FK motorized speed setter (common) ............................................................................................................. 562
4.2.2 Automatic operation using 4 to 20mADC current signal (common) ........................................................................................ 563
4.3 Motor equipped with brake (common) ........................................................................................................... 564
4.4 Parallel motor operation (common) ............................................................................................................... 565
4.4.1 Motors driven by one inverter (common) ................................................................................................................................ 565
4.4.2 Inverters and motors are in pairs (common) ........................................................................................................................... 566
4.4.3 Using pulse I/O (A700) ........................................................................................................................................................... 567
4.4.4 Soft starter is used to soft-start/soft-stop two motors at the same time (common) ................................................................. 568
4.5 Inverter - commercial power supply switch-over operation (common) ....................................................... 569
4.5.1 Star-Delta connection start (common) .................................................................................................................................... 569
4.5.2 Bypass inverter switch-over operation (common) ................................................................................................................... 570
4.5.3 Bypass-inverter switch-over operation [when bypass/inverter switch-over sequence is used] (common) .............................. 572
4.6 Automatic restart after instantaneous power failure circuit (common) ...................................................... 573
4.7 Automatic operation of fan, pump or the like using speed setter (common) .............................................. 574
4.8 Positioning operation (common) .................................................................................................................... 575
4.9 Vertical, winding lifter (A700, E700) .............................................................................................................. 576
4.9.1 Use of relay output option (A700, E700) .................................................................................................................................. 576
4.9.2 Use of brake sequence circuit function (A700) ........................................................................................................................ 577
4.10 Inverter fault output display and failure reset (A700, F700) ......................................................................... 578
4.11 Multi-speed operation application example (A700, F700, E700) ................................................................... 579
4.12 Jog operation in External operation mode (common) ................................................................................. 580
4.13 Operation using the second acceleration/deceleration time (common) ..................................................... 581
4.14 Start signal (three-wire) holding (common) .................................................................................................. 582
4.15 Reversible operation by analog input (A700, F700) ...................................................................................... 583
4.16 Operation using stop-on-contact control function (A700, E700) ................................................................. 584
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