I am not familiar with the G320 drives, but usually run away is caused by either a tach reversal, if no tach is fitted and the loop is closed by encoder alone, then the encoder is not phased right.
Firstly, if you have a tach fitted you should power the system up with ensuring no (or zero) signal command is issued.disconnect the command input if neccesary and connect to ground or common. Power up and if the motor runs away change the tach lead polarity and retry, when you power up, try turning the shaft you should meet some resistance. Once the tach is correctly phased (if you have one) then connect the system and if a command is given and the motor oscillates jumps or takes off, it is most probabally encoder phasing, this can be corrected by changing the A & /A leads if you have a differential encoder, or A & B if non differential.
Al
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CNC, Mechatronics Integration and Machine Design.
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E. |