Hi, Confirm you perfromed the following procedure:
1. At Power-up, SET SB109 ON. 2. Enable the PID output (for example, if you used MB0 to enable an HSO, turn MB0 ON). 3. Activate the Run PID MB for the loop you want to tune. 4. Turn the appropriate Start auto-tune SB ON; activating the auto-tune function.
5. When auto-tune is complete, the SB will turn OFF, and the appropriate auto-tune is Complete SB will turn ON.