Contents
Contents
General safety guidelines.............................................................................................................................. 5
Safety symbols..................................................................................................................................... 5
Changeability of this document......................................................................................................... 6
Revision notes...................................................................................................................................... 6
Associated literature........................................................................................................................... 6
Conditioned based maintenance...................................................................................................... 7
VSD models.......................................................................................................................................... 8
LVD models........................................................................................................................................ 13
General information.................................................................................................................................... 15
OptiSpeed/Harmonic filter component overview......................................................................... 15
Differences between the G and W designs.................................................................................... 17
Differences for the VSD and LVD model drives............................................................................. 17
OptiSpeed compressor drive control system overview................................................................ 17
VSD adaptive capacity control......................................................................................................... 19
OptiSpeed compressor drive details......................................................................................................... 22
System architecture.......................................................................................................................... 22
Printed circuit boards........................................................................................................................ 32
Safety shutdowns......................................................................................................................................... 34
General information.......................................................................................................................... 34
Safety shutdown messages.............................................................................................................. 35
Cycling shutdowns....................................................................................................................................... 37
General information.......................................................................................................................... 37
Cycling shutdown messages............................................................................................................ 37
Warning messages....................................................................................................................................... 42
General information.......................................................................................................................... 42
Warning messages............................................................................................................................ 42
VSD frequently asked questions................................................................................................................ 43
Unit conversion............................................................................................................................................ 45
Liquid-Cooled OptiSpeed Compressor Speed Drive
3
