Zapi AC-2 User Manual download pdf (Page 66)

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8.14 Description of “ALARMS” menu

The ALARMS logbook in the MAIN MENU’ records the alarms of the controller. It

has a FIFO (First Input First Output) structure that means the oldest alarm is lost

when the database is full and a new alarm occurs. The logbook is composed of

five locations getting possible to stack five different type of alarms with the

following information:

1) The alarm code

2) The times that each alarm occurs consecutively

3) The Hour Meter value when the first event of every alarm occurred

4) And the inverter temperature when the first event of every alarm occurred.

This function permits a deeper diagnosis of problems as the recent history can be

revised.

4 NOTE: if the same alarm is continuously happening, the controller does not use

new memory of the logbook, but only updates the last memory cell increasing the

related counter (point 2) of previous list). Nevertheless, the hourmeter indicated

in this memory refers to the first time the alarm occurred. In this way, comparing

this hourmeter with the controller hourmeter, it is possible to determine:

- When this alarm occurred the first time.

- How many hours are elapsed from the first occurrence to now.

- How many times it has occurred in said period.

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Zapi AC-2 User Manual Page 66