User Manual Instruction Manual

13-86 GV6000 AC Drive User Manual
Vtrigger The threshold to detect power loss.
The level is adjustable. The default is the value in the GV6000 Bus
Level table. If “Pwr Loss Lvl” is selected as an input function AND
energized, Vtrigger is set to Vmem minus Power Loss Level (186).
Vopen is normally 60V DC below Vtrigger (in a 480VAC drive). Both
Vopen and Vtrigger are limited to a minimum of Vmin. This is only a
factor if Power Loss Level (186) is set to a large value.
WARNING:When using a value of Power Loss Level (186) larger
than default, the customer must provide a minimum line impedance
to limit inrush current when the power line recovers. The input
impedance should be equal or greater than the equivalent of a 5%
transformer with a VA rating 5 times the drive’s input VA rating.
Vinertia The software regulation reference for Vbus during inertia ride
through.
Vclose The threshold to close the pre-charge contactor.
Vopen The threshold to open the pre-charge contactor.
Vmin The minimum value of Vopen.
Voff The bus voltage below which the switching power supply falls out of
regulation.
Table 13.6 – Bus Levels
Class 200/240V AC 400/480V AC 600/690V AC
Vslew 1.2V DC 2.4V DC 3.0V DC
Vrecover Vmem – 30V Vmem – 60V Vmem – 75V
Vclose Vmem – 60V Vmem – 120V Vmem – 150V
Vtrigger1,2 Vmem – 60V Vmem – 120V Vmem – 150V
Vtrigger1,3 Vmem – 90V Vmem – 180V Vmem – 225V
Vopen Vmem – 90V Vmem – 180V Vmem – 225V
Vopen4 153V DC 305V DC 382V DC
Vmin 153V DC 305V DC 382V DC
Voff 5 – 200V DC –
Term Definition