Allen-Bradley · PowerFlex 750
This Alarm 2 indicates that Encoderless TorqProve has been enabled, but the specific application concerns, limitations, and risks associated with operating TorqProve without an encoder have not been reviewed or acknowledged. The drive cannot start due to this unaddressed configuration risk. It is crucial to understand these limitations to ensure safe operation.
Click steps to track your progress.
1. Access the drive HMI or programming software and navigate to P1100 (Torque Prove Mode).
2. If encoderless operation is desired for the application, set P1101 (Torq Prv Safety Ack) to '1' (Acknowledged) to confirm understanding of risks.
3. If an encoder is available and desired for improved accuracy, reconfigure P35 (Speed Feedback Select) to the appropriate encoder input (e.g., '1').
4. Review the application's safety integrity level (SIL) and ensure that encoderless TorqProve meets these specific requirements.
5. Test the TorqProve functionality with a controlled load and monitor actual torque values (e.g., A0-07) to verify proper operation and fault clearance.