
TABLE OF CONTENTS B-65232EN/03
c-4
2.6.3 AC Line Filter...................................................................................................... 139
2.7 CONNECTOR............................................................................................140
3 SPECIFICATIONS..............................................................................141
3.1 SPECIFICATIONS.....................................................................................142
3.2 DERATING ................................................................................................143
3.2.1 For SVU-20 ......................................................................................................... 143
3.2.2 For SVU-40 and SVU-80 .................................................................................... 144
3.3 PROTECTION AND ABNORMALITY DETECTION FUNCTIONS.............146
3.4 NORMAL OPERATING MODE..................................................................148
4 SEPARATED REGENERATIVE DISCHARGE UNIT .........................149
4.1 FOR SVU-4, SVU-12, AND SVU-20 ..........................................................150
4.1.1 Cases Where a Separated Regenerative Discharge Unit Is Not Required........... 150
4.1.2 Cases Where a Separated Regenerative Discharge Unit Is Required.................. 152
4.1.3 For SVU-40 and SVU-80 .................................................................................... 154
4.1.4 Notes on Regenerative Discharge Unit Installation ............................................ 156
5 POWER SUPPLY...............................................................................162
5.1 INPUT POWER SUPPLY ..........................................................................163
5.1.1 Three-phase Input Power Supply for Motor Power............................................. 163
5.1.2 Single-phase Input Power Supply for Motor Power............................................ 163
5.1.3 Single-phase Input for Control Power ................................................................. 163
5.2 POWER SUPPLY RATINGS .....................................................................164
5.2.1 Three-phase Input Power Supply Ratings for Motor Power ............................... 164
5.3 POWER TRANSFORMER FOR EXPORTS..............................................165
5.3.1 Specification........................................................................................................ 165
5.3.2 How to Select a Transformer............................................................................... 166
6 HEAT DISSIPATION ..........................................................................167
7 INSTALLATION CONDITIONS AND NOTES.....................................168
7.1 ENVIRONMENTAL CONDITIONS.............................................................169
7.2 SELECTING A GROUND FAULT INTERRUPTER ...................................170
7.3 NOISE PROTECTION ...............................................................................171
7.3.1 Separation of Signal Lines................................................................................... 171
7.3.2 Grounding............................................................................................................ 173
7.3.3 Noise Suppressor................................................................................................. 174
7.3.4 Cable Clamp and Shield Processing.................................................................... 175
7.4 INSTALLING LIGHTNING SURGE ABSORBERS ....................................178