TMA IS Matrix

TMA IS Matrix

Effects/Actuation

STO Azimuth Drives Power and Engage Azimuth brakes

STO Elevation Drives Power and Engage Elevation brakes

STO Azimuth Cable Wrap Drives

STO Camera Cable Wrap Drives

STO Balancing System Drives

STO Mirror Cover Drives

STO Locking Pins Drives

STO Deployable Platforms Drives

Lock the Deployable Platform extension

Dc-Link Cut-off Power (Main Drives)

Discharge Capacitor Banks

HAS OSS (Fast pressure off)

SOS OSS (Slow pressure off)

Camera Cable Wrap Safety Device Actuated (GIS-Detection)

TMA ETPBs (GIS-Detection)

TMA Brakes NOT Engaged (GIS-Detection)

Failed MCS Watchdog or MCS Loss communication (GIS-Detection)

Causes/Detection

TMA-A-1

TMA-A-2

TMA-A-3

TMA-A-4

TMA-A-5

TMA-A-6

TMA-A-7

TMA-A-8

TMA-A-9

TMA-A-10

TMA-A-11

TMA-A-12

TMA-A-17

TMA-A-13

TMA-A-14

TMA-A-15

TMA-A-16

Azimuth axis CW travel limit AND topple block pos A

TMA-D-1

R(1)

Azimuth axis CCW travel limit AND topple block pos B

TMA-D-2

R(1)

Azimuth axis over-speed

TMA-D-3

S

Azimuth brakes oil pressure loss

TMA-D-4

S(2)

S(2)

Azimuth brake no engaged

TMA-D-5

N

N

Elevation axis CW travel limit

TMA-D-6

R(1)

Elevation axis CCW travel limit

TMA-D-7

R(1)

Elevation axis over-speed

TMA-D-8

S

Elevation brakes oil pressure loss

TMA-D-9

S(2)

S(2)

Elevation brake no engaged

TMA-D-10

N

N

N

Mirror cover NO retracted

TMA-D-11

N

Mirror cover manual power cut-off switch

TMA-D-12

N(3)

Azimuth Cable Wrap CW travel limit

TMA-D-13

S

Azimuth Cable Wrap CCW travel limit

TMA-D-14

S

Inserted Elevation Locking Pins

TMA-D-15

N

Test Position Elevation Locking Pins

TMA-D-16

N

N

Retracted Elevation Locking Pins

TMA-D-17

N

N

Azimuth Platform Hatch NO closed

TMA-D-18

S(5)

S(5)

Access door ladder NO parked

TMA-D-19

S(4)

Central Section Hatches NO closed

TMA-D-20

S(5)

S(5)

R(5)

Platform NO fully retracted

TMA-D-21

N

N

N

Platform NO total extended

TMA-D-22

N

Platform extension NO inserted

TMA-D-40

N

N

N

N

Camera Cable Wrap safety device lim CW PullCordLimP

TMA-D-23

R

S

Camera Cable Wrap safety device CCW PullCordLimN

TMA-D-24

R

S

TMA ETPBs

TMA-D-25

S

S

S

S

S

S

S

S

S

S

S

Main Drives ETPB

TMA-D-26

S

S

S

S

S

S

S

S

S

S

S

OSS malfunction

TMA-D-29

S

S

Any Capacitor cabinet NO closed

TMA-D-30

S

S

MCS watchdog

TMA-D-31

S

S

S

S

S

S

S

S

S

S

Loss communication

TMA-D-32

S

S

S

S

S

S

S

S

S

S

Unauthorized Pier access (from GIS)

TMA-D-34

N

N

GIS Discharge Capacitors Bank

TMA-D-40

N

GIS disable other equipment

TMA-D-41

N

N

N

N

N

N

N

N

GIS Main drives-STO and engage the brakes

TMA-D-42

N

N

GIS Camera cable wrap drives STO

TMA-D-43

N