Two chillers side by side, with Reliance VTac9 VFD's, took a power hit, causing the drives too loose their parameter settings. Re-entered the parameter's, and the drives are running fine. Is this common to the VTac 9? If so why do they lose their settings? I mean besides the obvious power hit. Customer is looking for an answer, would be nice if I could give him one, rather then the competitor:).
V Tac 9 Lost Settings
Started by ncrc5315, Jun 13 2012 03:04 AM
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