Advertisement
Code
Alarm
17
LOGIC FAILURE
#3
18
LOGIC
FAILURE #2
19
LOGIC
FAILURE #1
Traction
Pump
EPS
(T)
(P)
(E)
Description
Cause :
Hardware problem in the logic card circuit for high
current (overload) protection.
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.
This alarm occurs in the rest state if the output of the
voltage amplifier of the phase Vu-Vw have a drift larger
than
0.25 V. It is necessary to replace the controller.
Cause :
Fault in the hardware section of the logic board which
manages the phase's voltage feedback.
Troubleshooting :
This type of fault is not related to external components,
so when it happens it is necessary to replace the
controller.
Cause :
Fault in the hardware section of the logic board which
manages the phase's voltage feedback.
Troubleshooting :
This type of fault is not related to external components,
so when it happens it is necessary to replace the ACE2
logic board.
This alarm occurs when the real voltage between
phases W and V of the motor is different from the
desired. It is necessary to replace the controller.
This fault is displayed when the controller detects an
overvoltage or undervoltage condition. Overvoltage
threshold is 35V, undervoltage threshold is 9,5V in the
24V controller. In 48V controller overvoltage threshold is
65V, undervoltage threshold is 9,5V.
Troubleshooting of fault displayed at startup or in
standby; in these cases it is very likely the fault is due to
an undervoltage, so it is suggested to check :
A)
Key input signal down-going pulses (below
undervoltage threshold) due to external loads, like
DC/DC converters starting-up, Relays or contactor
switching, solenoids energizing / deenergizing.
B)
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 controller.
Troubleshooting of fault displayed during motor driving;
in this case it can be an undervoltage or a overvoltage
condition.
A)
If the alarm happens during traction acceleration or
driving hydraulic functions, it is very likely it is an
undervoltage condition; check battery charge
condition, power cable connection.
B)
If the alarm happens during release braking, it is very
likely it is due to overvoltage condition; check line
contactor contact, battery power cable connection.
7-68
Advertisement
