Indication (Normal And Abnormal) - Hitachi Central Station EX Installation Manual

8. Indication (Normal and Abnormal)

LED indication for normal and abnormal condition are as follow.
State
Software start Detected abnormality on the
up failure software
Memory
Detected abnormality on checking
check failure
FlashROM
(FlashROM)
Checking
memory Checking FlashROM
(FlashROM)
Memory
Detected abnormality on checking
check failure
SDRAM
(SDRAM)
Checking
memory Checking SDRAM
(SDRAM)
File system Detected abnormality on checking
failure file system
Immediately after turning power
Application
ON and application start up in
start up
normal mode
After turning power ON in normal
H-LINK
mode, application starts up and
initialization
detected abnormality on initializing
failure
H-LINK communication port.
After turning power ON in normal
Internal mode, application starts up and
database failure detected abnormality on checking
internal database.
After turning power ON in normal
Initializing
mode, application starts up and then
system
processing system initialization.
After start up in normal mode,
Preparing for
the Central Station EX is either
air conditioners
checking connection with other
connection
central controllers or while auto
checking
address detection.
After turning power ON in normal
Checking
mode, application starts up and
connection with
then checking connection with air
air conditioners
conditioners.
After turning power ON in normal
Communication mode, completed connection
failure with air checking with air conditioners and
conditioners detected communication failure with
1 or more air conditioners.
Writing
microSD Data being written to microSD
(for service card
maintenance)
After turning power ON on
Normal state (*) normal mode, none of the above
situations is observed.
NOTICE:
Upon occurrence of situation highlighted in gray, refer to "23. Maintenance and Service" (pages 92-93).
*: "0c0" indicating checking connection will turn to "000" as making transition to normal operation state.
If Central Station EX failed to detect all air conditioners detected on the initial connection check, after recovery
from power failure, for example, 7-segment LED will indicate "000" for 3 minutes and then show "00E" to indicate
communication failure with air conditioners.
18
Table 8.1 Indication and Condition for ERROR LED and 7-segment LED
Lights/indicates when Goes OFF/clears when
The software has no error/
abnormality.
Checking FlashROM
successfully completed.
Checking FlashROM
successfully completed.
Checking SDRAM
successfully completed.
Checking SDRAM
successfully completed.
Checking file system
successfully completed.
1 second elapsed
Initialization of H-LINK
communication port
successfully completed.
Checking internal database
successfully completed.
System initialization
successfully completed.
Starting connection
checking
Connection checking
completed.
Communication with all air
conditioners detected is
successfully established.
Writing data completed.
One or more criteria above
are met.
ERROR 7-segment Indication
LED state LED state
ON
ON
OFF
ON
OFF
ON
on for 1
second
ON
ON for 1
sec. and
OFF for 1
sec.
(Repeated)
OFF
Flashes
once in 5
sec.
(Repeated)
Flashes
once in 5
sec.
(Repeated)
Flashes
once in 3
sec.
(Repeated)
OFF
OFF
priority
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
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