User Event - ABB DCS 500B Description

Functional Software description

• User Event

90
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
4 = EVENT
Parameter DLY (delay) selects the activation delay. External event
has to be active for longer than the activation delay time until it is
accepted.
(only alarm indication)
(only logging to Fault Logger)
DCS 500 Software Description