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Code
Alarm
224
WAITING FOR
NODE
COIL SHORTED
EF
225
CURRENT
SENS. KO
CURRENT
GAIN
226
VACC OUT
RANGE
CHAT TIME
NO SYNC
Pump
EPS
Traction
(P)
(E)
(T)
Description
Cause :
The controller receives from the CAN the message that
another controller in the net is in fault condition; as a
consequence the ACE0/COMBIAC0 controller itself
cannot enter an operative status, but has to WAIT for the
other controller coming out from the fault status.
Cause :
This alarm occurs when there is a short circuit of the
EB/AUX coils connected to CNA#18 output. After the
overload condition has been removed, the alarm exits
automatically by releasing and then enabling a travel
demand.
Troubleshooting :
A)
The typical root cause for this error code to be
displayed is in the harness or in the load coil. So the
very first check to carry out concerns connections
between controller outputs and loads.
B)
In case no failures/problems have been found
externally, the problem is in the controller, which has
to be replaced.
Cause :
One of the current sensor, used to measure the value of
the current on the motor phases, is damaged.
Troubleshooting :
This type of fault is not related to external components,
replace the controller.
This alarm occurs when the parameters to compensate
for the gain of the current amplifiers (ADJUSTMENT #03
and ADJUSTMENT #04) have the default values (i.e. the
maximum current was not regulated). It is necessary to
send the controller to Zapi to perform the maximum
current regulation.
The voltage on the Vacc potentiometer (A15) is outside
of the range that was set with the "Program Vacc"
function.
Troubleshooting :
Repeat the "Program Vacc" procedure.
After no travel request is active for the chat time, the line
contactor is automatically opened.
Troubleshooting :
To restart, the operator needs to press the accelerator
pedal.
Every 16msec, inside the code cycle, the main uC rises
and then lowers an input for the slave uC (SYNC). When
the slave uC detects no edge for more than 100 msec on
this input, this alarm occurs. This is just a watch dog
function: when the main uC does not execute the code
cycle it does not update the SYNC signal and the slave
uC cuts off the steer and traction. It is necessary to
replace the controller.
7-87
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