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Display on BOP of MicroMaster MM440

Created by: chintu at: 4/14/2007 10:27 AM (2 Replies)

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4/14/2007 10:27 AM	Rate (0)
chintu Posts: 29 Rating: (1)	Dear Sir, we have Micro Master Drive MM440. We are facing problem of BOP of Micro Master drive (MM440). We have connected BOP to MM440 But we will not see display. It show ##### on display of BOP. We have given 3 pahse supply to micro master drive mm440. We have done following observation on drive (1) We are getting +590 VDC between +DC & - DC terminal. (2) Between control terminal 9 & 28 : 27.5 VDC (3) Between Control terminal 1 & 2 : 10 VDC We dont understang why it show ##### on BOP of Drive. Can you guide me? Regards
chintu Posts: 29 Rating: (1)
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4/16/2007 9:08 AM	Rate (0)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 11/15/2024 Posts: 8768 Rating: (1171)	Hello chintu, Perhaps the connection pins are bend. See also following link: http://support.automation.siemens.com/WW/view/en/23623849 Best regards, Wizard

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4/16/2007 1:00 PM	Rate (0)
mohamed elsawy Regular Member Joined: 12/28/2005 Last visit: 6/10/2007 Posts: 20 Rating: (2)	Hello If the Pins on the I/O boardor back of the BOP are OK , then more possibly to have a problem in Control board or/and I/O board , you should make a support request mentioning serial no. of the drive . cheers M.sawy

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