Assisting Window Messages; Priority Of Indication And Help Messages; Help Messages - ABB RE 54 Operator's Manual

RE_ 54_
6.
6.1.
6.2.
28
Feeder, Machine and Transformer Terminals
Operator's Manual

Assisting window messages

There are two kinds of messages that are displayed in the assisting window:
1. Indication messages that are further divided to
• information about the terminal functions and the condition of the terminal
(self-diagnosis) together with a LED indicator
• text messages without a LED indicator, generally related to e.g. condition
monitoring, alarms and warnings

2. Help messages

All messages are latching, i.e. they remain on the display until acknowledged or
overrun by another message of higher prority.
U s e C - b u t t o n t o
c l e a r E v e n t s
Uaux = 80...265 Vdc/ac
Ion = 1/5 A (Io)
fn = 50 Hz Un = 100/110 V (U)
In = 1/5 A (I) Uon = 100/110 V (Uo)
Fig. 6.-1 Protection indicators

Priority of indication and help messages

The messages in the assisting window have a certain priority. If different type of
indications are activated simultaneously, the message with the highest priority
appears on the display. The priority of the messages is the following:
1. Internal fault
2. Trip, CBFP
3. Start, Block, Supervision (condition monitoring)
4. Help messages
As concerns the messages 1 and 2, the first active indication is shown in the assisting
window, whereas for the messages 3 and 4, the latest active indication is shown.
Help messages
Help messages (priority 4) assist the user by displaying hints on how to proceed, see
the example below.
C c l e a r s a l a r m s
E V E N T M I M I C
Assisting window
Protection indication LEDs:
Left: Ready, IRF, Test mode
Center: Start, Block
Right: Trip, CBFP
1MRS xxxxxx
98150
9509
1MRS750500-MUM
readtrip_b
assistvi_b