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AFMNA0AA – EPS-BLI HYG – User Manual
37) NO SP REFRESH
Alarm 0xFFFE = 254 Group #2 [M,S]:
- Cause:
In case at least one output between CPOC1 and CPOC2 (CNA#20
and CNA#17) has a PWM period shorter than 4 ms or longer than
6 ms, confirmed for 92 ms long, this alarm occurs (NO SP
REFRES02 and NO SP REFRES04).
It occurs also when at least one between CPOC1 and CPOC2
does not switch longer than 12 ms (2 period lost) with alarm NO
SP REFRES20.
- Remedy:
Check the sensor at the steering handle and the wiring from the
steering handle to the controller.
38) STEER HAZARD
Alarm 0xFF55 = 85 Group #4 [M,S]:
- Cause:
This is just a warning to inform that the steering controller is
limiting the angle in the steering direction. No speed reduction
occurs on the traction.
39) IQ MISMATCH
Alarm 0xFFAF = 242 Group #2 [M,S]:
- Cause:
This alarm occurs when the mean voltage on the Quadrature line
of the stepper motor (connection CNA#8) is not null: the voltage on
every stepper motor line is a sine wave with null mean voltage.
- Remedy:
Check the continuity of the stepper motor connections. In particular
the resistance between CNA#8 and the minus battery (with the
stepper motor at rest) is expected being very low (close to 30
ohms).
40) CAN BUS WARNING
Alarm 0XFFE3 = 227 Group #0 [M,S]:
- Cause:
Main uC and Slave uC communicate via a local serial interface.
This alarm occurs when the main uC does not receive the
communication from the slave uC through this serial interface.
- Remedy:
It is necessary to replace the controller.
41) EPS NOT ALIGNED
Alarm 0XFFEE = 238 Group #0 [M,S]:
- Cause:
This is a real alarm that cut off the traction. It occurs at the initial
alignment if the straight-ahead condition is not matched within
6sec. Throughout this 6 s delay, the steer is not activated yet, the
safety relays are open and the traction is stopped.
42) D LINE SENSOR KO
Alarm 0XFFF3 = 243 Group #0 [M,S]:
- Cause:
This alarm occurs when the mean voltage on the Direct line of the
stepper motor (connection CNA#9) is not null: the voltage on every
stepper motor line is a sine wave with null mean voltage.
- Remedy:
Check the continuity of the stepper motor connections. In particular
the resistance between CNA#9 and the minus battery (with the
stepper motor at rest) is expected being very low (close to 30
ohms).
