3/2/2012 7:49 PM | |
Joined: 8/25/2006 Last visit: 9/25/2024 Posts: 2209 Rating: (278) |
Hello. May be first of all it will be good to check the speed feedback - connections, cables and configuration.
When you told about sin/cos encoder did you mean encoder with 2 pulse tracks shifted by 90°? I think the problem is with speed feedback. So as per my experience, if you talk about problems at low speeds, you may try to play with parameters P144-P147. Another option is to make adaptation of P-gain of speed-controller, look at manual function diagram G151 and parameters P550, P556, P559. You may configure adaptation so, that at low speeds the P-gain will be smaller then usual. |
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