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TMA IS Safety Matrix

This repo contains the safety matrix for the TMA IS, named as TMA IS TABLE.csv

Actuation description:

ACRONYMS DEFINITION DESCRIPTION
N Not Store If the cause is active, the effect is tripped
S Store If the cause is active, the effect is tripped and stored. If the effect is no longer tripped, the operator must manually clear it
V Overridable The cause is active, the effect is tripped. It can bypass the tripping of the effect
R Resettable and Overridable Combination of the S and V

The numbers with some of the letters are:

NUMBERS DESCRIPTION
(1) Override with cabinet switch for main axis
(2) Fault conditioned with low pressure and brake active with delayed activation time
(3) Override with switch in elevation ring
(4) If AZ brake actuated only not stored operation (N or V)
(5) If EL and AZ brake actuated only not stored operation (N or V)

List of abbreviation:

ACRONYMS DEFINITION
CW Clockwise
CCW Counterclockwise
ETPB Emergency Trip Push Button
GIS Global Interlock System
OSS Oil Supply System
STO Safe Torque Off

Unexplained fields of the table:

  • TMA-D-#: stands for the list of detection (cause) just numbering them starting at 1
  • TMA-A-# stands for the list of actuation (effects) just numbering them starting at 1

About

This repo contains the safety matrix for the TMA IS. Repo from GitLab, original is here: https://gitlab.tekniker.es/publico/3151-lsst/documentation/tma-is/safety_matrix

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