I have a new DDM100 that I am trying (and failing) to balance in RA.
The Autoslew>Servo-Setup>Balance routine works correctly in DEC but fails in RA. The graphical display shows the upper, vertical, red line and, briefly, the yellow bar. The vertical line then moves back to the left. There are no error messages, the RA motor is then switched off and I am forced to restart Autoslew in order to try again.
Is it possible that the total load on the system is too small? My scope (an RH200) is light and audibly "chattered" before I added 25kg of additional weight on the OTA side. Now the system is quiet and vibrates gently. The single counterweight is 12cm from the top of the shaft - so quite close to the DDM100. It feels balanced. I have tried moving the counterweight incrementally to various positions that are then clearly out of balance. Nothing seems to help.
I can't find any logs that help in diagnosing balance issues.
What is the minimum OTA-side load for a DDM100? Or do I have some other issue, not forgetting that am I new to the ASA world and might be doing something stupid?
All ideas gratefully received.