Eps-Ac0 Alarms List; Main Menu "Alarms" List; One Blink Alarms - Zapi EPS-AC0 SWs&ENC User Manual

13 EPS-AC0 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 types 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 latest event of every alarm occurred
4) The inverter temperature when the latest event of every alarm occurred.
This function permits a deeper diagnosis of problems as the recent history can be
revisited.
The CAN Bus code is the corresponding number with which the alarm is signalled
on the CAN Bus (ID 0x298h).

13.1 Main menu "ALARMS" list

To Enter the MAIN MENU push the Enter button at the Home Page of the hand set
display and Roll for the ALARMS item. Here is the ALARMS list:

13.1.1 One Blink Alarms

1) MICRO SLAVE KO
- Cause:
- Remedy:
2) MICRO SLAVE #4
- Cause:
- Remedy:
3) MICRO SLAVE
AEMZP0EA - EPS-AC0 SWs&ENC - User Manual
CAN Bus Code = 246
In stepper motor application, this alarm occurs if the main uC is
detecting a direction of the stepper motor not matched with the one
that the slave uC is detecting.
In closed loop application, this alarm occurs if the main uC is
detecting a direction of the steering error not matched with the one
that the slave uC is detecting.
Furthermore, this alarm occurs also if the main uC is detecting no
steering limitation meanwhile the slave uC is detecting e steering
limitation.
It is necessary to replace the controller.
CAN Bus Code = 221
It occurs in one of the following conditions:
(Open loop application only) If the slave uC detects the stator
voltage phasor rotates in the opposite direction respect to the sign
of the stepper motor speed, this alarm occurs.
(Closed loop application only) If the slave uC detects the stator
voltage phasor rotates in the opposite direction respect to the
commanded position, this alarm occurs.
(i.e. slave uC detects the actual sign of the frequency in the motor
opposes the sign that the frequency should have according the
command).
It is necessary to replace the controller.
CAN Bus Code = 250
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