Carel µAD - Alarm Management

19
20
Fig. 6.c
ENGLISH
µAD +030220465 - rel. 1.1 - 15.12.2010
6.5 Alarms management
The µAD displays the states of the chiller alarm.
When an alarm occurs, the fl ashing ALARM symbol (20) is shown on the display. If the µAD has a buzzer
and En02=2, the buzzer will emit a noise. The buzzer can be silenced by pressing the TEMP button for 3
seconds. The alarm disappears when the cause is removed.
The sequence of the warnings relative to all active alarms are shown on the display, see table below:
Table of alarm codes
Codes Name Description
Ach Chiller global alarm Presence of a general active alarm in the µChiller,
display continues while the alarm persists
Ahu Humidity alarm
Indicates a fault in the
µAD humidity probe
AtE Temperature alarm
Indicates a fault in the
µAD temperature probe
CEr Confi guration error Presence of a confi guration error
Och Chiller off line The µChiller results disconnected from the
communication serial with the µAD terminal. The
alarm is displayed until the connection has been
restored. When it appears, check that the µChiller
is powered and connected correctly to the µAD
(Ad01).
UEr Unrecognised peripheral It signals that the device connected tot he com-
munication serial with the µAD terminal results
different to a µChiller
Tab. 6.2
Specifi c alarm codes table with µAD connected to µC
2
SE
µAD connected to µC
2
SE, also allows to display other types of alarms, see table below:
Indication of alarms on µAD display Indication of alarms on µC
2
SE display
A12 A1...2
E00 E1...8
ESP ESP
FL FL
HC HC1...4
HP HP1...2
LP LP1...2
T TP&TC1&TC2
Tab. 6.3
For more detailed information regarding the alarms, consult the µC
2
SE manual.