Emerson Dixell iProChill IPC115D Application Manual page 201

Action
Regulators
Alarm
Other loads
10.44 NOTE: ALARM RELAY AND BUZZER
The alarm relay working is enabled with at least one relay configured as alarm
Alarm relay/buzzer outlet
ON if...
1. In the presence of active alarms
2. In the presence of alarms not resettled
OFF if.. 1. In absence of alarms
2. In stand-by or ON - remote OFF if AL65=1
3. (buzzer) pressing one of the keys even in the presence of non-resettable alarms
11. NO VOLTAGE
On restore:
1. the device goes to the status preceding the power cut.
2. If a defrost cycle is progress the cycle is rested.
3. All timings in progress are annulled and re-initialised.
4. If a manual reset alarm is present, the alarm status is maintained until the key is used to restore
conditions.
12. AUTOMATIC TO MANUAL RESRT ALARMS DIAGNOSTICS
N° OCCURRENCES PER HOUR
The observation interval is a time window. The length is one hour. It is divided into 60 intervals, 1 minute
each.
This time window is slidable, it always cover the latest hour. See graph below:
1°Int 2°Int 3°Int 4°Int 5°Int 6°Int 7°Int 8°Int 9°Int 10°Int
During one interval (1 minute), if the alarm is active, this interval will be marked as "active". Then count all
"active" intervals number of the latest hour.
If the total number does not exceeds the threshold set, it means this alarm is not frequently occur. Once it
became not active, it will disappear immediately.
For example: See graph below (assume threshold set = 5. Active alarms are marked with ACT):
The total number of active intervals is 3. It is less than 5. So this alarm is automatic reset.
1°Int 2°Int 3°Int 4°Int 5°Int 6°Int 7°Int 8°Int 9°Int 10°Int
ACT ACT ACT
If the total number exceeds the threshold set, it means this alarm occurs very frequent. There maybe some
serious situation lies in the unit. So even when this alarm becomes not active, it does not disappear. It will
becomes "Resettable". Only by pressing a "RST" key in the keyboard can cancel this alarm.
For example: See graph below (assume threshold set = 5. Active alarms are marked with ACT):
The total number of active intervals is 7. It exceeds 5. So this alarm becomes to manual reset.
1°Int 2°Int 3°Int 4°Int 5°Int 6°Int 7°Int 8°Int 9°Int 10°Int
ACT ACT ACT
1592025050 iProChill v2.5 10D00 AG v1.3 GB 18.02.2016.docx
Alarm relay (DO type=1) + buzzer activated
Relay + buzzer activated
Off
ACT ACT
...
55°Int 56°Int 57°Int 58°Int 59°Int
...
...
ACT ACT
iProCHILL
55°Int 56°Int 57°Int 58°Int 59°Int
55°Int 56°Int 57°Int 58°Int 59°Int
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