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Code
Alarm
250
THERMIC SENS
KO
MICRO SLAVE
251
WRONG SET
BATTERY
KM OPEN
252
WRONG ZERO
KS OPEN
Pump
EPS
Traction
(P)
(E)
(T)
Description
Cause :
The output of the controller thermal sensor is out of
range.
Troubleshooting :
This type of fault is not related to external components;
replace the controller.
It occurs two ways:
A)
In steady state condition, when the main uC finds the
safety contact controlled by the slave uC has been
opened, but no alarm information has been
communicated from the slave uC to justify the
opening of the safety contact.
B)
at key on,when the main uC has closed its own safety
contact, it grants the local status bus to the slave uC
that is expected to change properly the status bus
configuration within 300msec. In case it doesn't, this
alarm occurs. It is necessary to replace the controller.
Cause :
At start-up, the controller checks the battery voltage and
verify it is within a window around the nominal value.
Troubleshooting :
A)
Check that the controller SET BATTERY parameter
value matches the battery nominal voltage.
B)
Check that the TESTER MENU/BATTERY
VOLTAGE parameter shows same value as the
battery voltage measured with a voltmeter. If it is does
not match, then do a "ADJUST BATTERY" function.
C)
Replace the battery.
This alarm occurs if the slave uC detects the safety
contact, of the main uC, open when expected being
closed. It is necessary to replace the controller.
Cause :
The outputs of the amplifiers (used to measure the
traction motor voltage) are checked to be included into a
range. This alarm occurs when the voltage signals >3V
or <2V at the initial.
Troubleshooting :
This type of fault is not related to external components;
replace the controller.
This alarm occurs if the main uC detects the safety
contact, of the slave uC, open when expected being
closed. It is necessary to replace the controller.
7-99
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