WEG PLC300 User Manual - page 59

Alarms

PLC300 | 10-3 

The arrows and browse through the active alarms. By pressing on 

the selected alarm, a more detailed screen is shown:

A c t u a t o r 1 F a i l

C h e c k c i r c u i t 1

A : 1 6 / 1 0 / 0 9 1 0 : 5 7 : 5 8

The first line shows the text displayed in the list of the active alarms. This text can have up 

to 15 characters and is a simple description of the alarm.

The second line can show some explanation or action to take in relation to the alarm and 

can have up to 20 characters.

The third line shows the day and the time the alarm was activated. 

Press to return to the list of the active alarms.

Press to exit the list of the active alarms and return to the previous screen.

Alarm History

By pressing , a history of the alarms that have been normalized is 

shown. An alarm is normalized when the bit marker that activated it returns to the previous 

state. For instance, when a temperature being measured by the analog input lowers, a 

comparison block disconnects the bit that was activated.

For instance:

A L A R M - H I S T O R Y

> 0 03: A c t u a t o r 1 F a i l

0 0 2 : C A N P o w e r O f f

0 0 1 : O v e r t e m p . K 1

This screen shows the alarms that have already been normalized, that is, have left the 

alarm condition.

The arrows and browse through  the normalized alarms. By pressing

on the selected alarm, a more detailed screen is shown.

A c t u a t o r 1 F a i l

C h e c k C i r c u i t 1

A : 1 6 / 1 0 / 0 9 1 0 : 5 7 : 5 8

N : 1 6 / 1 0 / 0 9 13: 4 0 : 23

In addition to the information already explained in the active alarms, the date and time in 

which the alarm was normalized appear on the fourth line.