ICS ERRORS and SOLUTIONS Errors are shown as follows: - Message or description - Cause or periodicity, if known - Solution - Ice.ConnectionLostException error=0 Extremely random and frequent Soved by resetting ICS, sometimes CUs - Ice.ConnectionLost (Time Out NCU3222) Extremely random Soved by resetting ICS and NIR CU - Err-4: expected count rate too low (or too high ?) Random Solved by opening the ExpMeters - Err-5: unknown error Seen when selecting SCIENCE mode from SAFE mode Solved by trying again - Err-7: no object found and/or AG window doesn't respond (image frozen) Happens rarely (last time 04-01-2020) Change to work at pop-up AG windows instead, or reset ICS (see here) - Err-11: telescope int error Not sure Solved by resetting the AG computer - Nack-4: exposure already running If exposure is stopped for any reason Set to Sleep and Awake again, or reset ICS - Nack-xx: ???????????????? Observation missing by NIR Device response error popup on the ICS GUI. Generally, due to GEIRS hangup. NIR cannot be used anymore. At night, first try nireset-hardreset. If that is not enough, use nireset-reboot + nireset-hardreset. - Nack-31: Wrong parameter. Delay time (~start time) It is due to the NIR Read & Reset count parameter set above 800s The solution is to lower that number below 800 (it usually is around half of the ExpTime) - Lamp state mismatch Defective lamp Solved by changing lamp - Network.cpp:2169 Scheduler opened too early before observations. Solved by restarting Scheduler + ICS - Time out AGC 1897 (or 1907) Happens rarely (last time 18-08-2019) Solved by stopping guider by hand and re-acquiring obj. - Time out FFE Probs in the FE Solved by resetting the FE controller - Broken promise Not sure Not sure how it was solved - Future already retrieved Random after reaching the target Solved by acknowledging and repeating Observe command - InvalidFocustepException Happens when doing the focus sequence, it dosen't see stars. Because clouds, dome closed, ...