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Simovert 6SE7023-0FD21-2 Master drive Power Fail Re-start Feature

1/20/2010 4:11 PM	Rate (0)
GAP007 Posts: 2 Rating: (0)	Need help in determining why the drive will not automatically re-start after a power fail without having to toggle the enable bit from low to high. Have checked WEA parameters and everything else I can check in parameters.
GAP007 Posts: 2 Rating: (0)
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1/22/2010 1:05 AM	Rate (0)
Graeme Platinum Expert Joined: 6/4/2008 Last visit: 8/5/2025 Posts: 1518 Rating: (327)	Hi, how are you controlling the ON/OFF signal? P554 must still be at logic 1 when the power is re-applied, otherwise, the WEA does not work. Did you read the WEA function section carefully? Graeme

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1/22/2010 2:53 PM	Rate (0)
GAP007 Posts: 2 Rating: (0)	Thanks for the reply. Yes, I have looked closely at the configuration of this parameter. There exists a serial interface board in the drive which the hardwired "Run" command is maintained on PL6 terminals . The parameter P554 contains the value 2001 (SST 1, Word 1 bit 0). When the drive disconnect is cycled and the run maintained the drive remains in the (008) ON LOCKED mode and will not re-start until the "Run" is toggled. I have included the drawing I have for the drive showing the connection detail. Is this configuration workable for auto restart? Attachment 20100122074220.pdf (300 Downloads)
GAP007 Posts: 2 Rating: (0)
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