System diagnostics, 1 temperature alarms, 2 power supply unit – Rockwell Automation 8000 Series TMR System User Manual
Page 27: 3 feed failure, Fault finding, 1 fault detection, 2 fault, Annunciation, Fault finding techniques
OPERATOR AND MAINTENANCE MANUAL
D o c N u m b e r 5 5 2 8 6 4
I s s u e 0 2 J u n e 2 0 0 4
P a g e 1 7 o f 2 3
6. SYSTEM DIAGNOSTICS
The 8000 Series
System diagnostic requirements will depend upon client
requirements. The recommended minimum diagnostics are included in the
Software manual. Whilst some alarms indicate a fault on the module (which require
replacement), others are used for analysis of the 8000 Series
System and indicate
a fault in a secondary component.
6.1 TEMPERATURE ALARMS
Each module has dedicated monitoring points for temperature. A high temperature
may indicate a faulty fan unit.
6.2 POWER SUPPLY UNIT
Redundant or N+1 configuration tolerates the loss of a power supply unit. A Power
supply fault is annunciated via status contacts from the power supply to inform the
operator that a power supply needs replacing.
6.3 FEED FAILURE
Should a system feed fail, and the two power feeds are isolated up to the 8000
Series
System, all three slice LED’s flash red on all modules.