Zapi EPS-AC0 SWs&ENC - Page 85

AEMZP0EA - EPS-AC0 SWs&ENC - User Manual Page - 85/95
9) KM CLOSED
CAN Bus Code = 253
- Cause: This alarm occurs at key on if the slave uC detects the safety
contact, of the main uC, closed prior to be commanded.
- Remedy: 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 being connected to a
battery voltage (not 12 V). Search for a harness problem or
replace the controller.
10) KM OPEN
CAN Bus Code = 251
- Cause: This alarm occurs if the slave uC detects the safety contact, of the
main uC, open when expected being closed.
- Remedy: It is necessary to replace the controller.
11) KS CLOSED
CAN Bus Code = 254
- Cause: This alarm occurs if the main uC detects the safety contact, of the
slave uC, closed prior to be commanded.
- Remedy: 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, NK1 is expected being connected to a
minus battery voltage (not 12 V). Search for a harness problem or
replace the controller.
12) KS OPEN
CAN Bus Code = 252
- Cause: This alarm occurs if the main uC detects the safety contact, of the
slave uC, open when expected being closed.
- Remedy: It is necessary to replace the controller.
13) CLOCK PAL NOT OK
CAN Bus Code = 218
- Cause: The main uC sends an analog signal towards the slave uC to reset
the slave uC on demand. When the slave uC detects this analog
signal external to a window from 2.2 to 2.8 and not in the range to
generate the reset on demand, the slave uC raises this alarm.
- Remedy: It is necessary to replace the controller.
14) CAN BUS KO SL.
CAN Bus Code = 215
- Cause: This alarm occurs when the slave uC does not receive any CAN
Bus frame from the main uC.
- Remedy: It is necessary to replace the controller.
15) SL EPS NOT ALL.
CAN Bus Code = 214
- Cause: This alarm occurs at key on:
a) when the initial automatic centering is expected.
AND
b) the slave uC detects the encoder is at rest longer than two secs
AND
c) within this two secs delay, the main uC does not communicate
that the automatic centering was successfully ended.
- Remedy: It is necessary to replace the controller.