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AF9ZP0BA - EPS-ACW REACH TRUCK - User Manual
- Remedy:
It is necessary to replace the controller.
14) LOGIC FAILURE #4
Alarm 0xFF10=16 Group #0 [M,S]:
- Cause:
This alarm occurs with steer at rest in case the amplifier on the
linked voltage Vu-Vw is not in a narrow window of +/- 250mV
around Vuw_zero 96msec long (sampling time 8msec for 12
consecutive samples.
- Remedy:
It is necessary to replace the controller.
15) DATA ACQUISITION
Warning 0xFFF5=245 with eps off and no drive [M]:
- Cause:
This alarm occurs during max current regulation (factory
adjusted) and when a procedure to acquire the motor
resistance is launched.
The acquisition of the motor resistance is not implemented yet.
- Remedy:
Recycle the key
16) EEPROM KO
Alarm 0xFF0D=13 Group #0 [M,S]:
- Cause:
Every microcontroller has its own Eeprom with two parameters
lists (to have a local back up copy). Each list has its own
checksum. When both checksums are wrong, this alarm occurs.
In case a parameter list has a wrong checksum it will be
repaired using the second list (back up copy with a correct
checksum).
- Remedy:
Make a Clear Eeprom. If the problem persists replace
controller.
17) PARAM TRANSFER
Alarm 0xFFF4=244 Group #0 [M]:
- Cause:
Master uC and Slave uC has its own parameter list (with its
local back up copy). Change of a parameter is handled by the
MuC only. MuC writes its own parameter and commands the
SuC to do the same for its parameter list. Execution of the write
command in the SuC is protected by a password. This alarm is
raised up by the MuC in case SuC refuses to do the write
command.
- Remedy:
Try to change one more time a parameter. If the problem
persists replace controller.
18) ANALOG
Alarm 0xFFFD=253 Group #0 [M,S]:
- Cause:
This alarm occurs two ways:
1. At key-on, the A/D converter is turned on and it is expected
to complete a first conversion of the analog inputs within
16msec. In case it isn’t, this alarm occurs.
2. In steady state conditions, the main signals (motor currents
and sensor at the steering wheel) are demanded for a new
A/D conversion every 250usec. In case no new conversion is
successfully ended within 1.25msec this alarm occurs (i.e. 5
consecutive conversions failed).
- Remedy:
Recycle the key. If problem persists replace the controller.
19) M/S PAR CHK MISM
