Danfoss AKA 245, Руководство пользователя

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Appendix B
Repeat routines for alarm handling
Depending on who has been selected to receive alarms, AKA 245 will have the following repeat
routines if it cannot get in touch with the receivers:
Setting of “AKA send alarm to”:
“System address NNN:AAA”
If an alarm message cannot be delivered within fi ve minutes, it will be retransmitted every fi fth minute
until it can be delivered.
If more alarms are received before the oldest alarm is delivered, nothing is done about it. Alarm No.
250 will trigger the system alarm “Alarm list overfl ow”, and the gateway can then receive no more
alarms from the controllers. Alarm relay DO2 will now be activated every fi fth minute (each time the
oldest alarm is retransmitted).
When an alarm has been delivered, it will become history in the alarm list, and the next one will now
be the oldest active alarm.
“AKA alarm table”
The following repeat routine will be performed in connection with alarm routing and when the alarm
is not delivered.
Start
Normal
attempt /
Pri.
Pause in minutes: /
after taht, repeat attempt: /
to destination Primary or Alternative:
5 /
1/
Pri. 5/
2/
Alt 5/
3/
Alt 5/
4/
Pri. 5/
5/
Pri. 5/
6/
Alt 5/
7/
Alt 5/
8/
Pri 5/
9/
Pri. 5/
10/
Alt
etc.
When the alarm has been delivered to a primary or alternative alarm receiver, a copy will be
transmitted to the copy receiver, if such a receiver has been defi ned.
If the copy alarm cannot be delivered, it will also be repeated every fi ve minutes. This situation will not
stop the gateway from transmitting Pri./Alt. alarms, until all 249 spaces have been used.
AKA 245 Manual RS8DT102 © Danfoss 09/2004 37