AFCZP0BC – COMBIACX & ACEX - User Manual Page - 61/81
12 COMBIACX /ACEX ALARMS LIST
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.
12.1 Faults diagnostic system
The fault diagnostic system of COMBIACX / ACEX controller is divided into 2 main
groups of faults:
ALARMS:
these are the faults which open the power section, which means the
power bridge is opened and, when possible, the LC is opened and EB
is applied.
These are faults related to:
- failures in the motor/controller that the power system is not
anymore able to drive the truck
- safety related failures
WARNINGS:
these are faults which do not stop the truck or stop it by a controlled
regen braking. In other words, the controller is working well, but it has
detected conditions to reduce the performances or to stop the truck
without opening the power devices.
These warnings are related to:
- wrong operator sequences
- conditions which require performance reduction (like high
temperatures, ….)
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