75
6.1.3 Steering Controller (EPS-AC0)
Error Message
Possible cause
Fault elimination
Error
Error text
6
SERIAL ERR #1
Main uC and Slave uC communicate via a local
serial interface. This alarm occurs when the
slave uC does not receive the communication
from the main uC through this serial interface.
It is necessary to
replace the controller.
13
EEPROM KO
It occurs if a test to write and read one location in
EEPROM fails. The SW expects to read the
written value. It occurs also when the hour
counter gives different values between the three
redundant locations in which it is recorded. It
occurs also when the busy bit of the EEPROM
does not rise within 12 msec.
It is necessary to
replace the controller.
16
LOGIC FAILURE #4
This alarm occurs in the rest state if the output of
the voltage amplifier of the phase Vw-Vv have a
drift larger than ±0.25 V.
It is necessary to
replace the controller.
17
LOGIC FAILURE #3
This alarm occurs in the rest state if the output of
the voltage amplifier of the phase Vu-Vw have a
drift larger than ±0.25 V.
It is necessary to
replace the controller.
18
LOGIC FAILURE #2
This alarm occurs when the real voltage between
phases W and V of the motor is different from the
desired.
It is necessary to
replace the controller.
19
LOGIC FAILURE #1
This alarm occurs when the real voltage between
phases W and U of the motor is different from the
desired.
It is necessary to
replace the controller.
32
VMN NOT OK
This alarm occurs in the initial rest state after key
on if the outputs of the motor voltage amplifiers
are not in the window from 2.2 to 2.8 Vdc.
It is necessary to
replace the controller.
48
MAIN CONT. OPEN
This alarm occurs only when the setting CAN
BUS is PRESENT. Then the eps-ac0 waits for a
via CAN information that the traction controller
has closed the main contactor. If this information
lacks more than about 1.5 secs, this alarm
occurs.
Find, on the traction
controller, the reason
for keeping the main
contactor open.
Содержание 508000003143
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