Trouble shooting

Automatic Failure Handling

• Autoresume
• Fad connection loss

Bias

• bias disconnection
• Overcurrent status
• Status notReferenced

FADs

• crate reset
• start up connection problem
• in-run fad loss
• drs underflow problem
• startup - no proper connection problem
• fadctrl hangs in state configuring by taking an external lp run

FTUs

• ftmctrl in state ERROR
• ftmctrl in state ClockCondError

Drivectrl

• cosy in state ERROR
• drivectrl in state LOCKED
• Manual parking of the telescope

Computers

• Informations about the Computers
• Restarting a hanging PC

Arduino

• Arduino Reset

Hardware

• Power Cycling the camera
• Switching off the bias crate

General Remarks

Stopping Programs

• never stop a not hanging program with ctrl+c
  • when a restart of the program is really necessary use .q instead
  • restarting a program is in most cases not a solution and only increase the risk to trigger more problems. So avoid restarting programs as long as possible