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INDI Library v1.9.2 Released (14 Sep 2021)

Bimonthly Stable INDI Library release introduces new drivers and fixes for existing ones.

CEM120 stops tracking at the Meridian

  • Posts: 79
  • Thank you received: 13
Just set up my new CEM120 all seems fine, can track, park, goto, platesolve and goto etc.   But when pointing south and tracking across the Meridian the mount stops tracking at 180 deg and goes idle.  If I do a GOTO say to 190 deg target, it does a nice Meridian flip.  (pretty scarry with 35 kilos of gear.)   I want the ability to track to around 190 degrees before flipping or stopping.  From the Ioptron manual I can use the handset :  
  • “Set Position Limit” will tell the mount when to stop tracking or to do a meridian flip. The limit can be set at from 0° to 14° (1 hour) pass meridian.
  •  “Set Behavior” will tell the mount if a meridian flip will be performed.
Can I do this from EKOS or do I need to do it from the handset and if I do it using the handset will that limit apply?   I assume I need it to go a little way past so I can set the flip hour angle in EKOS.

Is that correct or have I missed a setting equivalent to  Ioptrons "Set Position Limit"

Thanks, Max
1 month 3 weeks ago #75030

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  • Posts: 558
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I have the CEM120 and I set the handset to flip about 10 degrees past meridian as a failsafe. I set EKOS to flip 5 degrees past and it works every time. My suspicion is that your handset is set to stop at the meridian.

iOptron CEM120 EC2 and CEM25P
Celestron C11 EdgeHD
William Optics Star71
ASI 1600Mm Pro, ASI 462MC
Moonlight motorfocus & Esatto focuser
LodeStar X2 and ZWO OAG
DewBuster
NANO PC-T4
The following user(s) said Thank You: Max Dobres
1 month 3 weeks ago #75031

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I think that answers my question, I need to set " the handset to flip about 10 degrees past meridian". I was used to the mainly dumb HEQ5_Pro where everything is set via EKOS and I couldn't find a setting for it.

On a related note, do you power off the mount using the mounts' push button or do you cut the power another way. I have been careful to power off the mount directly so far, but it would suit me just to remotely cut the power after parking..
1 month 3 weeks ago #75032

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  • Posts: 558
  • Thank you received: 76
I haven’t turned my mount off in 6 months.

iOptron CEM120 EC2 and CEM25P
Celestron C11 EdgeHD
William Optics Star71
ASI 1600Mm Pro, ASI 462MC
Moonlight motorfocus & Esatto focuser
LodeStar X2 and ZWO OAG
DewBuster
NANO PC-T4
1 month 2 weeks ago #75035

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