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different setpoint speed and feedback speed

8/31/2011 11:45 AM	Rate (0)
vu khac Posts: 8 Rating: (0)	i have problems with simoreg converters DC-6RA7087-6DV62. when set <=3.4 circle/ minute to feedback correct. but if setpoint speed >3.4c/m so feedback respond different.example: set 3.6 circle/ minute to feedback is 3.4c/m. Help!!, adjust to parameter ? guide me.
vu khac Posts: 8 Rating: (0)
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8/31/2011 12:06 PM	Rate (0)
KSN Platinum Expert Joined: 8/25/2006 Last visit: 9/16/2025 Posts: 2218 Rating: (282)	Hello. What is used as actual speed (P083)? Did you maderequired optimization runs (P051)?

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9/1/2011 4:17 AM	Rate (0)
vu khac Posts: 8 Rating: (0)	i used to analog tacho (1) and P051= 7.optimization for speed control then P051=26? or about?
vu khac Posts: 8 Rating: (0)
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9/1/2011 6:06 AM	Rate (0)
KSN Platinum Expert Joined: 8/25/2006 Last visit: 9/16/2025 Posts: 2218 Rating: (282)	Hello. Did you execute optimization run for current controller (P051=25) and then for speed controller (P051=26)? If your drive have field weakening you need also optimization for field weakening (P051=27).

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9/4/2011 4:18 PM	Rate (0)
vu khac Posts: 8 Rating: (0)	hi. i used to device speed monitor, P051=7. if adjust Kp(p225) and Ti (p226), is'nt it? increase, decrease ?
vu khac Posts: 8 Rating: (0)
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4/12/2012 10:16 AM	Rate (0)
Ziemens Silver Member Joined: 3/2/2007 Last visit: 9/9/2025 Posts: 990 Rating: (5)	hy sir, did you solve the problem? thank you
	... thank you ...
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