4-16 BL-CB33-0115 - 03-01-2018
Table 4-3 STEERING CONTROLLER - Continued
Error Message Possible Cause Fault Elimination
Code Error Text
226 NO SYNC 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.
227 SLAVE COM.
ERROR
Main uC and Save Uc communi-
cate 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.
It is necessary to replace the controller.
237 WAITING DATA This warning occurs only if CAN
BUS is PRESENT. At key-on
the EPS-AC0 asks the traction
controller to send a list of
parameters via CAN BUS.
From the request until the
parameter are correctly
received, this warning occurs.
The steer is not activated yet,
and the safety relays remain
open when this warning is
present.
228 POSITION
ERROR
This alarm occurs for a error in
the redundant test of the feed-
back sensors.
Check the potentiometer connected to CNB#6
is working correctly. If toggle switches are
connected to CNA#2 and CNA#3, verify
they are working correctly and the setting
AUX FUNCTION 11 is correct. Verify that
sensor bearing in the motor (encoder) has
not slipped (the sensor bearing has two
rings: one is connected to the rotor shaft;
the other is connected to trhe motor frame.
Check these two rings are securely con-
nected to their structure without slippage.
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