Position Error correction failed

[prefetch]

i switched to a much lighter scope (a 5" refractor) and so i thought i'd have a lot less trouble with my DDM85, but i seem to keep getting snagged by random position errors.

 

my balance is pretty good.  i seem to have plenty of power available to the system.

 

i started logging the errors.  has anyone seen anything like this?  any ideas?

 

 

23:20:33.925: Starting Slew to RA 01.85h  DE -08.00d  EPOCH 0000

23:20:55.454: Interface setting TargetRightAscension to 7.27 False

23:20:55.485: Interface setting TargetDeclination to 0.00 True

23:20:55.516: Interface ForceNextPierSide = pierWest

23:20:55.516: Interface SlewToTargetAsynch

23:20:55.516: Starting Slew to RA 07.27h  DE 00.00d  EPOCH 0000

23:20:58.610: To long sleep of main timer, was reset by controltimer

23:20:58.610: AliveProgresscount stopped at 100

23:20:59.610: To long sleep of main timer, was reset by controltimer

23:20:59.610: AliveProgresscount stopped at 101

23:21:00.610: To long sleep of main timer, was reset by controltimer

23:21:00.610: AliveProgresscount stopped at 102

23:21:01.611: To long sleep of main timer, was reset by controltimer

23:21:01.611: AliveProgresscount stopped at 103

23:21:02.611: To long sleep of main timer, was reset by controltimer

23:21:02.611: AliveProgresscount stopped at 104

23:21:03.611: To long sleep of main timer, was reset by controltimer

23:21:03.611: AliveProgresscount stopped at 105

23:21:04.611: To long sleep of main timer, was reset by controltimer

23:21:04.611: AliveProgresscount stopped at 106

23:21:05.611: To long sleep of main timer, was reset by controltimer

23:21:05.611: AliveProgresscount stopped at 107

23:21:06.611: To long sleep of main timer, was reset by controltimer

23:21:06.611: AliveProgresscount stopped at 108

23:21:07.611: To long sleep of main timer, was reset by controltimer

23:21:07.611: AliveProgresscount stopped at 109

23:21:08.127: Axis DE/AL reported the following Problem:

Position Error

Position Error during slewing autocorrected by ClServo

Position Error correction failed

 

23:21:08.158: Raising Warning DE Axis: Position Error

Position Error during slewing autocorrected by ClServo

Position Error correction failed

 

[prefetch]

so i think i fixed it.

 

i stopped trying to make auto tune work an instead used manual tune and just picked the "small" OTA option and everything just worked so much better.  no more occasional squeaks or whines during slewing and after heavy exercise i never once got a slewing error.

 

really weird, but i'll take it.  

[MarkS]

Interesting!

 

In my experience with the DDM60, it doesn't pay to fine tune the tuning too much. After a lot of playing with it, I reverted to 'Medium' OTA option, with no problems.

 

The settings are much more 'relaxed' than my tweaked settings.

 

Mark