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6/4/2008 4:00 PM | |
Posts: 1 Rating: (0) |
Ihave a Micromaster430 Drive, work for a pump system the system consists of 2 pumps one works as frequency converter pump and the other pump work as direct pump. the direct pump works when the pressure decreases under 4 bar to maintain the pressure at 4 bar the problem is that at 1st start to the pump system the frequency converter pump start and reaches 46 Hz then goes down to 29 Hz then direct pump starts (that makes the pipe line vibrates) after a few seconds the frequency converter starts to goes to 42 Hz and the direct pump turns off some times gives error F0022 or F0001 I need the frequency converter pump to start gradually if the system need another pump it will start together when the pressure increase above 4 bar the direct pump turns off I attached the parameter list AttachmentParameters.pdf (207 Downloads) |
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