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MM440 Open loop Torque control configuration

10/22/2007 9:52 AM	Rate (0)
Sdd Posts: 14 Rating: (0)	Hi all, I am using MM440 Drive 11KW in winder application. We have configured the drive in open loop torque control mode.The pareamters which we have set is, P1300=22 P1500=2 P1501=722.0 We are facing the problem of jerks ( variation in speed & current). Is it possible to change the Pgain or I gain of the current controller. Please suggest as to which parameter we will have to change in order to eleminate the jerka in speed. SDD
Sdd Posts: 14 Rating: (0)
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10/31/2007 12:45 PM	Rate (0)
Zcomin Posts: 23 Rating: (2)	maybe you can use vector control with max torque limited mode
Zcomin Posts: 23 Rating: (2)
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11/1/2007 12:21 PM	Rate (0)
Sdd Posts: 14 Rating: (0)	Hi Zcomin, I am using vector control but still i am getting the variation in the torque exterted by the Motor. How can i get the constant torque i.e. constant current if the torque setpoint is constant.
Sdd Posts: 14 Rating: (0)
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12/10/2007 11:02 AM	Rate (0)
Ryan Posts: 3 Rating: (0)	maybe there is some disturbance (EMI) in the analogue input channel. try to add some filter in this channel. e.g. set P753 to a relative higher value.
Ryan Posts: 3 Rating: (0)
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