Danfoss VLT 3000 Series Product Manual page 4

Special conditions
Galvanic isolation -
Earth leakage current ........................... 128
Extreme running conditions .................. 129
du/dt and peak voltage on motor .......... 130
Acoustic noise ...................................... 130
Thermal motor protection ..................... 130
Derating ................................................ 131
EMC testresults .................................... 134
Vibration and shock .............................. 137
Air humidity .......................................... 137
Efficiency .............................................. 138
Mains supply
interference / harmonics ....................... 139
Power factor ......................................... 139
Service
Fault messages ................................... 140
Electrostatic discharge (ESD) ............... 141
Fault location ........................................ 142
Accessories
External mounting
of display .............................................. 146
Connection of brake resistors ............... 146
Connection of option cards ................... 146
Mounting of bonding plate for
UL approval .......................................... 148
Mounting of fan option .......................... 148
Factory settings
Factory settings .................................... 149
Index
Index .................................................... 154
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4 MG.30.A7.02 - VLT is a registered Danfoss trademark