2
DC1…20… and DC1…OE1 Variable Frequency Drives
02/20 MN040059EN
www.eaton.com
Cable cross-sections .................................................................... 39
Safety and switching.................................................................... 40
Disconnecting device................................................................... 40
Fuses ........................................................................................... 40
Residual current circuit-breaker (RCD) ......................................... 41
Overvoltage protection ................................................................ 41
Mains contactors ......................................................................... 42
Mains chokes............................................................................... 43
Radio interference suppression filter ........................................... 44
Braking resistances...................................................................... 45
Motor chokes............................................................................... 48
Sine filter...................................................................................... 49
Switching to the output side........................................................ 50
Contactors.................................................................................... 50
Switch-disconnectors................................................................... 51
Bypass circuit............................................................................... 52
Connecting Motors in Parallel ...................................................... 53
Three-phase motors..................................................................... 55
Motor Selection ........................................................................... 55
Circuit types with three-phase motors......................................... 56
Permanent magnet motor (PM motor) ........................................ 57
Brushless DC motor (BLDC motor).............................................. 57
Synchronous reluctance motor (SynRM) ..................................... 58
Single-phase AC motors .............................................................. 59
Connecting Ex motors ................................................................. 59
Installation.................................................................................. 61
Introduction.................................................................................. 61
Mounting position ........................................................................ 61
Mounting ..................................................................................... 62
Mounting position ........................................................................ 63
Cooling measures ........................................................................ 63
IP66 / NEMA4X degree of protection .......................................... 69
EMC installation ........................................................................... 70
EMC measures in the control panel............................................. 70
Earthing........................................................................................ 72
EMC screw .................................................................................. 73
Screen earth kit............................................................................ 75
EMC cable brackets ..................................................................... 76
General installation diagram......................................................... 78
Electrical Installation .................................................................... 79
Connection to power section....................................................... 80
Connection on control section ..................................................... 93
Thermistor connection ................................................................. 106