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two motors run in one drive

11/18/2010 11:51 AM	Rate (0)
ALGUDKAR RAO Posts: 621 Rating: (10)	dear experts and friends. here is iam facing one big problem. customer having 1 MM440 VFD 15Kw drive.the application is stone crusher machine.using two conveyor which having two individual motors the two motors name plate is given below. 7.5KW RPM 1440 VOl 415v current I 14.4amp both motor having same rating.and VFD having 15kw and output current 32amp. i did quick commissioning.when i given on command the alarm505v ie overload. if i remove the belt means without load both motor is working fine. and also i cheked individual motor with load its also working fine witout any fault or alarm. my question is one in VFDwe can run the two motors. can anyone help me regarding this issue.........? thanks in advance regards algudkar
ALGUDKAR RAO Posts: 621 Rating: (10)
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11/18/2010 12:03 PM	Rate (1)
umencho Diamond Member Joined: 3/21/2006 Last visit: 3/30/2025 Posts: 10239 Rating: (1183)	Hello, Look at http://support.automation.siemens.com/WW/view/en/14390055 plus /tf/WW/en/Posts/18410 Best reagrds, Hristo Mihalev

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12/19/2011 8:19 AM	Rate (0)
Rajkumarganesan Regular Member Joined: 12/16/2011 Last visit: 7/4/2025 Posts: 6 Rating: (0)	Do quick commissioning once again the motor data should be doubled(i.e.., if kw is 7.5, set 15.00kw in p0307, current & Rpm should also be increased ). double the Rpm in p1082 also

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