NASA-LLIS-0413
Lessons Learned - Incorrect Actuations of Relays in Matrix (1975)
active, Most Current
| Organization: | NASA |
| Publication Date: | 26 June 1996 |
| Status: | active |
| Page Count: | 2 |
scope:
Abstract:
Because the Viking Orbiter power switching relays were arranged in a matrix, two relays could under certain conditions be inadvertently actuated when only one was commanded. A system control protocol should be established whereby independently requested relay actuations are executed in a predictable manner.
Document History
NASA-LLIS-0413
June 26, 1996
Lessons Learned - Incorrect Actuations of Relays in Matrix (1975)
Abstract:
Because the Viking Orbiter power switching relays were arranged in a matrix, two relays could under certain conditions be inadvertently actuated when only one was commanded. A system...
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