How to Recover the Swingarm Controller after a power outage


Following a telescope power outage (or power glitch), the breakers inside the ARGOS Swingam Controller may trip. The symptom are loss of communication to the unit ( and also interlock signals for the PF swingarms are missing. If this is the case, one or both rotary breakers may have tripped.

Recovery procedure:

  1. Verify that the unit is not reachable (ping
  2. Check that the 3-phase 480V breakers feeding the unit from the telescope are on (PP61A-19,21,23).
  3. Take the telescope to Horizon to be able to reach the controller cabinet (ARGOS SX CRE).
  4. Using the blue scissor lift, access the ARGOS SX CRE cabinet, located on the inside of the SX C-ring extension (next to the AO and LBC cabinets).
  5. Open the cabinet door and remove the plate labeled "SIEMENS" (see picture) to gain access to the controller. See: SA controller.
  6. Check the two switches shown here: SA breakers. If any is tripped, reset it. The controller should come back to life (lights on).
  7. Put the plate back and close the cabinet door.
  8. Open a vnc connection to dx-lalas (HowToLogInAndConnectToVNC).
  9. Open firefox and go to (it should be bookmarked).
  10. Select "Settings". If prompted to enter user and password, use "simotion"/"simotion" (without quotes). Reference: picture
  11. If Operating State is STOP, click on RUN.
  12. In firefox, open (it should be bookmarked).
  13. In the "Commands" frame (left frame), for each SX and DX click in sequence reset and set default parameters.
  14. In the "Status" frame, verify that both SX and DX status show "Simotion OK".

-- GustavoRahmer - 28 Aug 2018
I Attachment Action Size Date Who Comment
IMG_5465.jpgjpg IMG_5465.jpg manage 995 K 28 Aug 2018 - 16:57 GustavoRahmer  
IMG_5470.jpgjpg IMG_5470.jpg manage 1 MB 28 Aug 2018 - 17:36 GustavoRahmer  
Simotion_D45_Settings.pngpng Simotion_D45_Settings.png manage 127 K 28 Aug 2018 - 17:38 GustavoRahmer  
image002.pngpng image002.png manage 461 K 28 Aug 2018 - 17:38 GustavoRahmer  
Topic revision: r2 - 09 Mar 2019, GustavoRahmer
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