Mitsubishi FR-A800

4
CONTENTS
2.9.8 Connection of the DC reactor (FR-HEL) ........................................................................................................ 79
3 PRECAUTIONS FOR USE OF THE INVERTER 81
3.1 Electro-magnetic interference (EMI) and leakage currents 82
3.1.1 Leakage currents and countermeasures........................................................................................................ 82
3.1.2 Countermeasures against inverter-generated EMI ........................................................................................ 84
3.1.3 Built-in EMC filter............................................................................................................................................ 86
3.2 Power supply harmonics 87
3.2.1 Power supply harmonics ................................................................................................................................ 87
3.2.2 Harmonic suppression guidelines in Japan.................................................................................................... 88
3.3 Installation of a reactor 90
3.4 Power-OFF and magnetic contactor (MC) 91
3.5 Countermeasures against deterioration of the 400 V class motor insulation 92
3.6 Checklist before starting operation 93
3.7 Failsafe system which uses the inverter 95
4 BASIC OPERATION 97
4.1 Operation panel (FR-DU08) 98
4.1.1 Components of the operation panel (FR-DU08)............................................................................................. 98
4.1.2 Basic operation of the operation panel........................................................................................................... 99
4.1.3 Correspondences between digital and actual characters............................................................................. 100
4.1.4 Changing the parameter setting value ......................................................................................................... 101
4.2 Monitoring the inverter status 102
4.2.1 Monitoring of output current and output voltage........................................................................................... 102
4.2.2 First monitored item...................................................................................................................................... 102
4.2.3 Displaying the set frequency ........................................................................................................................ 102
4.3 Easy operation mode setting (easy setting mode) 103
4.4 Frequently-used parameters (simple mode parameters) 105
4.4.1 Simple mode parameter list......................................................................................................................... 105
4.5 Basic operation procedure (PU operation) 107
4.5.1 Operating at a set frequency (example: operating at 30 Hz)........................................................................ 107
4.5.2 Using the setting dial like a potentiometer to perform operation .................................................................. 108
4.5.3 Setting the frequency by switches (multi-speed setting) .............................................................................. 109
4.5.4 Setting the frequency with analog signals (voltage input) ............................................................................ 110
4.5.5 Using an analog signal (current input) to give a frequency command ......................................................... 111
4.6 Basic operation procedure (External operation) 112
4.6.1 Using the frequency set by the operation panel ........................................................................................... 112
4.6.2 Setting the frequency by switches (multi-speed setting) (Pr.4 to Pr.6)......................................................... 114
4.6.3 Setting the frequency with analog signals (voltage input) ............................................................................ 115
4.6.4 Changing the frequency (60 Hz, initial value) at the maximum voltage input (5 V, initial value) .................. 116
4.6.5 Using an analog signal (current input) to give a frequency command ......................................................... 117
4.6.6 Changing the frequency (60 Hz, initial value) at the maximum current input (at 20 mA, initial value) ......... 118