User’s Manual
25
3.5 TYPICAL CONFIGURATIONS
The diagrams shown in Figures 3-9, 3-10, 3-11 illustrate typical connections of the
M3645 regen units with generic VFDs. There are many other configurations that may
be applied providing a basic connection criterion is maintained such as:
The AC input should maintain a low impedance path back to the grid.
No reactors should be connected upstream of the regen unit without consulting
Bonitron for instructions.
The DC input should be connected to a fixed bus whether from a common bus
supply or from the output of a VFD. This should never be connected to a switching
source such as the braking resistor terminals on some drives.
The DC input should not be connected to an active front end drive without
instructions from Bonitron.
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