Functional Software description
90 DCS 500 Software Description
•
User Event
Events can be programmed to DCS 500B software by using USER
EVENT function blocks.
Input [IN] activates logging of an external alarm or fault into the
Fault Logger when state is 1.
Parameter TYPE selects the type of external event:
0 = FAULT: TRIPLEVEL 1 (main, field and fan contactors are
opened
1 = FAULT: TRIPLEVEL 2 (main and field contactors are opened
2 = FAULT: TRIPLEVEL 3 (main contactors is opened
3 = ALARM (only alarm indication)
4 = EVENT (only logging to Fault Logger)
Parameter DLY (delay) selects the activation delay. External event
has to be active for longer than the activation delay time until it is
accepted.
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