4. Troubleshooting
Process of abnormality of Inverter for Fan
SMGB0082 rev.1 - 07/2015
114
4.4
Process of abnormality of Inverter for Fan
In case that a Fan-related abnormality occurs, a retry control is performed according to the contents of the abnormality,
and in case that the same abnormality occurs again a specified number of times within a specified period, then there is an
alarm stop.
There are 2 types of retry,
•
Retry of Fan alone (Compressor keeps operating. It recovers in 10 seconds)
•
Retry of the entire cycle (Compressor also stops. It recovers in 3 minutes)
In case of a retry of the entire cycle, the retry display on the following page is shown. In case of a retry of Fan alone, it is
possible to know which Fan is conducting retry with “Inspection” · “Fan status (Individual)”.
Flow at the time of abnormality occurrence:
It is possible that the
cause of abnormality is a
temporary phenomenon due to
a sudden cause
It is possible that the
cause of abnormality is a
temporary phenomenon due to
a sudden cause
Occurrence of abnormality related to
the cooling cycle
Occurrence of abnormality related
to the fan
•
Compressor stops
•
Count of number of retries
•
Only the relevant fan stops
•
Count of number of retries
•
Compressor stops
•
Count of number of retries
Operation
continues
Occurrence of retry control
due to the same phenomenon
a defined number of times
before the end of timer count
Occurrence of retry control
due to the same phenomenon
a defined number of times
before the end of timer count
No
No
No
N O T E
The retry timer starts from the
time of the first occurrence of
abnormality (There is a timer
for each alarm code)
No
Yes
Yes
Yes
Yes
Yes
•
Retry reason is shown in
“Inspection” “No. 1 Cycle”
column.
•
Compressor restarts after 3 min
Abnormality of the fan of
the 1st unit of each cycle, and
fan manual set switch ON in
all units
Alarm Stop
•
Compressor is stopped
•
Alarm is shown
•
The relevant fan is stopped
•
Stop reason is shown in
“Inspection” “Fan status
(individual)”column
In case of fan cycle retry
•
Retry reason is shown in
“Inspection” “No.1 cycle”.
•
Compressor restarts after 3 min
In case of fan standalone retry
•
Retry reason is shown in
“Inspection” “Fan status”
column.
•
The relevant fan restarts when
fan start up conditions are
achieved.
