User manual

Intelligent Technologies ( IT. ) D77B-DSNAP
Pub. No. MN05004001E
21
September 2002
Functional Description
Table 22: Truth Table
– = state not important RUNNING 1 = Run/FWD/SLOW
1 = state true (energized) RUNNING 2 = REV/FAST
0 = state false (de-energized) FAULT = any fault in Table 17
WARNING = any warning in Table 17
Old State
Fieldbus Inputs
Event New State ActionRun 1 Run 2 Reset
FAULTED – – 1 RESET OFF FAULT = 0
OFF 0 0 – NONE OFF NONE
OFF 1 0 – RUN 1 RUNNING 1 RUNNING 1 = 1
OFF 0 1 – RUN 2 RUNNING 2 RUNNING 2 = 1
OFF 1 1 – RUN 1/RUN 2 OFF NONE
RUNNING 1 1 1 – RUN 2 RUNNING 1 NONE
RUNNING 2 1 1 – RUN 1 RUNNING 2 NONE
RUNNING 1 1 0 – FAULT FAULTED RUNNING 1 = 0
FAULT = 1
RUNNING 2 0 1 – FAULT FAULTED RUNNING 2 = 0
FAULT = 1
RUNNING 1 1 0 – WARNING RUNNING 1 WARNING = 1
RUNNING 2 0 1 – WARNING RUNNING 2 WARNING = 1