Big Joe J1-192, Maintenance Repair Parts Manual

Page: 35 / 124

BL-J1-192-0315 - 11-19-2019 3-19
250 MICRO SLAVE It occurs when the information on the
status bus between the main uC and
the slave uC is frozen to the 0xFF
value (the slave uC does not update
the status bus configuration).
Replace the controller.
251 KM OPEN This alarm occurs if the slave uC detects
the safety contact, of the main uC, is
open when expected to be closed.
Replace the controller.
252 KS OPEN This alarm occurs if the main uC detects
the safety contact, of the slave uC, is
open when expected to be closed.
Replace the controller.
253 KM CLOSED This alarm occurs at key on if the slave
uC detects the safety contact, of the
main uC, is closed prior to being com-
manded.
This alarm occurs if the connection
CNA#5 (K1) is around a voltage of 12
Vdc when switching on the key. In fact,
when the safety contacts are open, K1
is expected to be connected to a bat-
tery voltage (not 12 V). Search for a
harness problem or replace the con-
troller.
254 KS CLOSED This alarm occurs if the main uC detects
the safety contact, of the slave uC to
be closed prior to being commanded.
This alarm occurs if the connection
CNA#4 (NK1) is around a voltage of 12
Vdc when switching on the key. In fact,
when the safety contacts are open to a
minus battery voltage (not 12 V).
Search for a harness problem or
replace the controller.