viii
[ 5 ] [ ] Display of parenthesis ............................................................................................... 6-42
[ 6 ] Data of function codes cannot be changed ............................................................................. 6-42
[ 7 ] Function code data are not changeable (change from link functions) ..................................... 6-43
[ 8 ] en.Off appears .................................................................................................................... 6-43
[ 9 ] Other status display ................................................................................................................ 6-43
Chapter 7 MAINTENANCE AND INSPECTION
7.1
Inspection Interval ............................................................................................................................. 7-2
7.2
Daily Inspection ................................................................................................................................. 7-3
7.3
Periodic Inspection ............................................................................................................................ 7-4
7.3.1 Periodic inspection 1--Before the inverter is powered ON or after it stops running ....................... 7-4
7.3.2 Periodic inspection 2--When the inverter is ON or it is running ..................................................... 7-6
7.4
List of Periodic Replacement Parts .................................................................................................... 7-7
7.4.1 Judgment on service life ............................................................................................................... 7-8
[ 1 ] Measuring the capacitance of DC link bus capacitor in comparison with initial value
at time of shipment ................................................................................................................. 7-10
[ 2 ] Measuring the capacitance of the DC link bus capacitor
under ordinary operating conditions .........................................................................................7-11
[ 3 ] Early warning of lifetime alarm .................................................................................................7-11
7.5
Measuring the Amount of Electricity in Main Circuit ......................................................................... 7-12
7.6
Insulation Test .................................................................................................................................. 7-13
7.6.1 Megger test of main circuit .......................................................................................................... 7-13
7.6.2 Insulation test of control circuit .................................................................................................... 7-13
7.6.3 Insulation test of external main circuit and sequence control circuit ............................................ 7-13
7.7
Product Inquiries and Warranty ....................................................................................................... 7-14
7.7.1 Inquiry request ............................................................................................................................ 7-14
7.7.2 Product warranty ......................................................................................................................... 7-14
[ 1 ] Free of charge warranty period and warranty range ............................................................... 7-14
[ 2 ] Exclusion of liability for loss of opportunity, etc. ...................................................................... 7-15
[ 3 ] Repair period after production stoppage, spare parts supply period
(maintenance period) .............................................................................................................. 7-15
[ 4 ] Delivery conditions .................................................................................................................. 7-15
[ 5 ] Service description ................................................................................................................. 7-15
[ 6 ] Applicable scope of service .................................................................................................... 7-15
Chapter 8 BLOCK DIAGRAMS FOR CONTROL LOGIC
8.1
Meanings of Symbols Used in the Control Block Diagrams ............................................................... 8-1
8.2
Frequency Setting Section ................................................................................................................. 8-2
8.3
Operation Command Section ............................................................................................................ 8-5
8.4
PID Control Section (for Processing) ................................................................................................. 8-6
8.5
PID Control Section (for Dancer) ....................................................................................................... 8-7
8.6
Position Control Section .................................................................................................................... 8-8
8.7
Control Section .................................................................................................................................. 8-9
8.7.1 V/f control ...................................................................................................................................... 8-9
[ 1 ] Common ................................................................................................................................... 8-9
[ 2 ] Without speed sensor ............................................................................................................. 8-10
[ 3 ] With speed sensor ...................................................................................................................8-11
8.7.2 Vector control .............................................................................................................................. 8-12
[ 1 ] Common ................................................................................................................................. 8-12
[ 2 ] Torque command / torque limit ............................................................................................... 8-13
[ 3 ] Speed control / torque control ................................................................................................. 8-14
[ 4 ] Speed limit and over speed protection processing ................................................................. 8-15
[ 5 ] Motor drive .............................................................................................................................. 8-16
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