Uniflair UST500, Инструкция по эксплуатации

Страница: 66 / 100

UST500 CONTROL BOARD
66 06MC0074@00B0100
14/04/2010
Alarms and Diagnostics (folder PAr/AL)
“UST500 ” performs full installation diagnostics and signals a variety of alarms.
Parameters for alarm activation and acknowledgment can be viewed and configured in folder
AL (parameters AL00…AL47) (see User Interface and Parameters chapter).
For some alarms, the signal can be excluded for a preset interval, set in the relative parameter.
For some alarms, the number of interventions can be counted: if the limit set in the parameter has been exceeded in the last hour, the alarm
switches from automatic reset to manual reset.
Automatic reset
For automatic reset alarms, normal operation is restored as soon as the cause of the alarm has been removed.
Manual reset
Alarms can be manually reset by pressing and releasing the [UP + DOWN] keys
Normal operation can only be reset
•
by pressing a key on the instrument keyboard and
•
only if the cause of the alarm has been removed.
Alarm deactivation
Alarms can be acknowledged by pressing any key.
N.B: acknowledging an alarm has no effect on the alarm generated other than on the alarm LED that goes from
fixed to flashing.
An alarm has two effects:
•
It blocks the utilities concerned
•
Message on display alternates with a message on the main display
The next two sections summarize alarms grouped by type (digital or analogue).
Alarm code and alarm parameters are in bold (PAr/AL folder)