Zapi ACE2, Руководство пользователя

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AF2ZP0CL - ACE2 - User Manual Page - 75/85
The safety out driver is shorted.
Troubleshooting:
-
Check if there is a short or a low impedance pull-down between SAFETY
OUT (CAN#19) and –BATT.
- The driver circuit is damaged in the logic board, which has to be
replaced.
10) WATCHDOG#1
Cause:
At start-up the watch dog signal is already active before the software has
generated it. At stby or running condition the watch dog signal is not active
(in alarm status).
Troubleshooting:
The WD hardware circuit or microcontroller output port are damaged. In both
cases no external component are involved. Replace the logic board.
11) WATCHDOG#2
Cause:
At start-up the watch dog signal is already active before the software has
generated it. At stby or running condition the watch dog signal is not active
(in alarm status).
Troubleshooting:
The WD hardware circuit or microcontroller output port are damaged. In both
cases no external component are involved. Replace the logic board.
12) KEYOFF SHORTED
Cause:
This fault is displayed when the controller detects a low logic level of Key-Off
signal during Start-Up diagnosis.
Troubleshooting:
It is very likely the fault is due to an under voltage, so it is suggested to
check:
-
Key input signal down-going pulses (below under voltage threshold) due
to external loads, like DC/DC converters starting-up, relays or contactor
switching, solenoids energizing / de-energizing.
- Check the connection of power cables to the battery terminal, positive
and negative, to MC and to contBatt and –Batt, which must be
screwed with a torque comprised in the range 13Nm÷15Nm.
- If no voltage transient is detected on the supply line and the alarm is
present every time the key is switched ON, the failure is probably in the
controller hardware, so it is necessary to replace the logic board.
13) LOGIC FAILURE#1
Cause:
This fault is displayed when the controller detects an over voltage or under
voltage condition. Over voltage threshold is 45V, under voltage threshold is
9V in the 24V controller. In 48V controller over voltage threshold is 65V,
under voltage threshold is 11V.
Troubleshooting:
Troubleshooting of fault displayed at start-up or in standby; in these cases it
is very likely the fault is due to an under voltage, so it is suggested to check:
-
Key input signal down-going pulses (below under voltage threshold) due
to external loads, like DC/DC converters starting-up, relays or contactor
switching, solenoids energizing / de-energizing.
- Check the connection of power cables to the battery terminal, positive