ABB Relion 650 Series Engineering Manual page 69

1MRK 511 245-UUS A
LED operation mode LatchedAck-F-S
R
Y
G
R
Y
G
Ack
Illumination =>
IEC08000397 V1 EN-US
Figure 47: LHMI: LED operation mode LatchedAck-F-S / Base
The classical mode to indicate incoming alarms or warnings, which the operator has not seen
since the last acknowledgement, is presented in
possibilities for the operator to acknowledge:
• The signal is already gone when acknowledged, the LED turns
• The signal is still
R
Y
G
R
Y
G
Ack
Illumination =>
IEC08000398 V1 EN-US
Figure 48: LHMI LED operation mode LatchedAck-F-S Ack Prio / 1
When more than one color is used the rules for priority are valid. Two basic principles are:
• Two or more signals are still
•
•
• One or more signals with higher priority are changing to
•
See Figure 48
650 series
Engineering manual
= Steady = Flash
ON , the LED stays illuminated and changes to steady state.
= Steady = Flash
ON when the LED is acknowledged.
All colors (signals) are acknowledged and they will illuminate in steady state.
Incoming additional signals with lower priority will illuminate when they become the
highest priority in steady mode.
The higher priority color (signal) will illuminate in flash mode.
and Figure 49 for these two principles.
© Copyright 2011 ABB. All rights reserved
IEC08000397.vsd
Figure 47 as a basic operation mode. Two
OFF (at least for this color).
IEC08000398.vsd
ON after an acknowledgement.
Section 6
Local HMI engineering
63