Zapi ACE3 User Manual page 77

10) LOGIC FAILURE#1
Cause:
This fault is displayed when the controller detects an under voltage condition.
Under voltage threshold is 16V in the 48V controller. In 80V controller the
under voltage threshold is 30V.
Troubleshooting of fault displayed at startup or in standby:
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Troubleshooting of fault displayed during motor driving:
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11) VDC LINK OVERV
Cause:
This fault is displayed when the controller detects an over voltage condition.
Over voltage threshold is 65V in the 48V controller. In 116V controller the
under voltage threshold is 30V.
Troubleshooting of fault displayed at start-up or in standby:
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Troubleshooting of fault displayed during motor driving:.
If the alarm happens during release braking, check line contactor contact,
battery power cable connection.
12) HW FAULT 11/12/13
Cause:
Hardware problem in the logic card circuit for MC driver management.
Troubleshooting:
This type of fault is not related to external components, so, when it is present
it is necessary to replace the ACE logic board.
13) HW FAULT 01/02/03
Cause:
Hardware problem in the logic card circuit for power section management.
Troubleshooting:
This type of fault is not related to external components, so, when it is present
it is necessary to replace the ACE logic board.
14) DRIVER SHORTED
Cause:
The driver of the main contactor coil is shorted.
Troubleshooting:
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AFFZP0BA – ACE3 - User Manual
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.
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.
If the alarm happens during traction acceleration or driving hydraulic
functions, check battery charge condition, power cable connection.
Check the connection of power cables to the battery terminal, positive
and negative, to LC and to controller +Batt 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.
Check if there is a short or a low impedance pull-down between NLC
(CNA#16) and –BATT.
The driver circuit is damaged in the logic board, which has to be
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