Operation
10
Chapter 2, Controller Operation
535 User's Manual
NOTE:
Powering down the 535
acknowledges/clears all latched
alarms. When powering up, all alarms
will be reinitialized.
To acknowledge an alarm(s):
1. To acknowledge Alarm 1, press
ACK
once.
2. To acknowledge Alarm 2, press
ACK
twice.
3. If both alarms are activated, press
ACK
once to acknowledge Alarm 1, then
again to acknowledge Alarm 2.
4. The message and alarm icon dissappear. Refer to
Figure 2.2.
Latching Alarms
If an alarm is set up to be latching (for details, see Chapter 5) then, in general,
it must be acknowledged in order to clear the alarm and release the relay (if
applicable). A non-latching alarm will clear itself as soon as the process leaves
the alarm condition.
Limit Sequence
An alarm can be configured to be both latching and non-acknowledgeable. In
this case, the alarm is acknowledgeable only after the process has left the alarm
condition. This is similar to the function of a limit controller.
More on Alarms
For more details on how to set up alarms and for examples of various ways alarms
can be set up, refer to the section on Alarms in Chapter 7.
NOTE:
All alarms are software alarms unless
tied to an output relay in the
SET UP
mode. See Chapters 5 and 7 for
details on alarms.
