Lenze 9300 Vsd Internals
Posted 01 September 2008 - 12:42 AM
My current plan (no pun) is to change the IGBTs in the drive then current sensing system so that the drive 'thinks' it is outputting it's standard current.
Posted 02 September 2008 - 10:21 AM
Welcome to the forum.
I do not know about the particular drive that you have mentioned, but the major differences will be the input rectifier, reactors (AC or DC), bus capacitors. (Carry the AC ripple current), output IGBTs and the protection sensing circuit.
If there is a soft charge contactor (or relay) this will also change ase will the soft charge resistor due to the larger capacitor bank. Cabling and busbar work will also probably change due to the higher current, so there is not that much that will not change. Maybe the gate drive pcb and possibly the main control pcb.
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