Alarm Acknowledge Page; Using The Alarm; Alarm Indications; Acknowledging Alarms - ABB C1900 Operating Manual

...4 OPERATION

4.3 Alarm Acknowledge Page

4.3.1 Alarm Indications – Fig. 4.3
The definitions for alarm states (on, off or flashing) are detailed in
Fig. 4.3.

4.3.2 Acknowledging Alarms

Note. Channel 1 and 2 alarms can be acknowledged
only from faceplate 1. Channel 3 and 4 alarms (if
applicable) can be acknowledged only from faceplate 2.
Unacknowledged alarms can be acknowledged from the
faceplate controls on the front panel in two ways:
In the
OPERATING LEVEL
frame (providing the key is programmed for this function –
see Section 4.1 in the
Programming Manual
In the
Alarm Acknowledge Page
see Section 4.3.3 following.
CH1 AL1 AL2 AL3 AL4
CH2
CH3
CH4
CH1 AL1 AL2 AL3 AL4
CH2
CH3
CH4
CH1 AL1 AL2 AL3 AL4
CH2
CH3
CH4
Fig. 4.3 Alarm LED Indications
10
– by pressing the key at any
).
– by pressing the
No LED illuminated indicates no
alarms active.
The is not
Alarm Acknowledge Page
displayed in the
OPERATOR LEVEL
A flashing LED indicates an
unacknowledged alarm on that
channel. For example, a flashing
LED indicates an
AL1
unacknowledged alarm on
channel 1.
The is
Alarm Acknowledge Page
now displayed in the
OPERATOR
.
LEVEL
A constant LED indicates that all
active alarms have been
acknowledged on that channel.
The
Alarm Acknowledge Page
remains in the
OPERATOR LEVEL
until all alarm conditions are
cleared on that channel.
4.3.3 Using the Alarm Acknowledge Page
302
795
CH1 AL1 AL2
CH2
CH3
CH4
Alarm Activated
302
802
CH1 AL1 AL2
CH2
CH3
key –
CH4
ACKNLG
.
ALArM5
CH1 AL1 AL2
CH2
CH3
CH4
A2HPrC
800
CH1 AL1 AL2
CH2
CH3
CH4
A2HPrC
ACKNGd
CH1 AL1 AL2
CH2
CH3
CH4
If there are more active alarms on channel 2 the LED continues to
flash until all alarms for that channel have been acknowledged.
Note. The
acknowledge alarm, if programmed.
No Alarm Active
No LED indicators illuminated.
AL3 AL4
Alarm Active
LED indicator flashing,
AL2
indicating active
channel 2.
AL3 AL4
Use key to go to top of
Alarm Acknowledge Page
Alarm Acknowledge Page
Use key to advance to next
frame
AL3 AL4
Alarm Identity
Upper display:
identity and type.
Lower Display:
AL3 AL4
level of the alarm identified in
the upper display.
Acknowledge Alarm
Use key to acknowledge
the alarm (see). When the alarm
is acknowledged, '
displayed and a constant LED
AL3 AL4
indicates the acknowledged
alarm.
key or a digital input can also be used to
alarm on
.
shows the alarm
shows the trip
ACKNGd
' is