16
5.3
Alarm Acknowledge Page
5.3.1
Alarm Indications – Fig. 5.5
The definitions for alarm states (on, off or flashing) are detailed
in Fig. 5.5.
5.3.2
Acknowledging Alarms
Unacknowledged alarms can be acknowledged from the
faceplates on the front of the instrument in two ways:
In the
Operating Level
– by pressing the
switch at any
frame (providing the switch is programmed for this function
– see Section 5.1 in the
Programming Manual
). The
switch acknowledges all alarms from either faceplate.
In the
Alarm Acknowledge Page
– by pressing the
switch – see Section 5.3.3 following.
✶
Note. In the
Alarm Acknowledge Page
Channel 1
alarms can only be acknowledged using faceplate 1.
Channel 2 alarms (if applicable) can only be
acknowledged using faceplate 2.
5.3.3
Using the Alarm Acknowledge Page
No Alarm Present
No l.e.d. indicators
illuminated.
Alarm Present
AL
l.e.d. indicator flashing,
indicating alarm exists on this
channel.
Use the
switch to return
to top of
Alarm Acknowledge
Page
.
Alarm Acknowledge Page
Use the
switch to
advance to next frame.
Alarm Identity
Upper display:
shows the
alarm identity and type.
Lower Display:
shows the trip
level of the alarm identified in
the upper display.
Acknowledge Alarm
Use the
switch to
acknowledge the alarm. When
the alarm is acknowledged,
'
ACKNGd
' is displayed and a
constant l.e.d. indicates the
acknowledged alarm.
If there are more active alarms
on the selected channel the
l.e.d. continues to flash until
all alarms for this channel
have been acknowledged.
Alarm Activated
302
795
AL
RMT
AT
MAN
302
802
AL
RMT
AT
MAN
ACKNLG
ALArM5
AL
RMT
AT
MAN
A2HPrC
800
AL
RMT
AT
MAN
A2HPrC
ACKNGd
AL
RMT
AT
MAN
AL
RMT
AT
MAN
100.3
200.5
Control Faceplate
AL
RMT
AT
MAN
100.3
200.5
AL
RMT
AT
MAN
100.3
200.5
No l.e.d. illuminated indicates
no alarms present and the
Alarm Acknowledge Page
is
not present in the
Operator
Level
.
A flashing l.e.d. indicates that
an unacknowledged alarm
exists.
A constant l.e.d. indicates that
all active alarms have been
acknowledged.
…5 CONTROL OPERATION
Fig. 5.5 Alarm L.E.D. Indications
Содержание COMMANDER 1911
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