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wsy_nte

Ultra3000 Error Code

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Hi... We use Ultra3000 servo drive with servo motor MPL-B580F-S with high resolution encoder feedback. After run for one month, we found the error with E20 and E30 on the ultra3000. We cek the encoder cable and connection and its ok. How to solve this problem? Thanks. James

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E20 Motor Encoder State Error The motor encoder encountered an illegal transition. • Replace the motor/encoder. • Use shielded cables with twisted pair wires. • Route the feedback away from potential noise sources. • Check the system grounds. • Verify that the unbuffered encoder signals are not subjected to EMI in the CN1 cable. Remove these signals from the CN1 cable if they are not being used. • Verify that the motor has a high-frequency bond to the drive’s enclosure panel. • Verify that any stage connected to the motor shaft (for example using a ball screw) has a high-frequency bond to the machine frame and the drive’s enclosure panel. E30 Encoder Communication Fault Communication was not established with an intelligent encoder. • Verify motor selection. • Verify the motor supports automatic identification. • Verify motor encoder wiring. From just what you have posted and what if found on the AB site I would start by swapping the motor or encoder. Just a guess.

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