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© Mitsubishi Forklift Trucks 2013. All
© Mitsubishi Forklift Trucks 2013. All
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Revision: B
Revision: B
PBV20N2
PBV20N2
Table 10. Traction controller alarm codes
Table 10. Traction controller alarm codes
TRUCKTOOL
TRUCKTOOL
AND
AND
DISPLAY
DISPLAY
Self diagnosis test failed
Self diagnosis test failed
WATCHDOG
WATCHDOG
This is a safety-related self diagnosis test within the logic between the master (drive) and
This is a safety-related self diagnosis test within
(pump) microcontrollers. The alarm indicates that the master and slave watchdog message is
(pump) microcontrollers. The alarm indicates that the master and slave watchdog message is
missing or late.
missing or late.
This alarm can be caused by a
This alarm can be caused by a CAN bus malfunction, which blinds the master-slave
communication. Check all the CAN bus cables and measure the bus resistance between CAN
communication. Check all the CAN bus cables and measure the bus resistance between CAN
high and low. The
high and low. The bus resistance value should be 60
bus resistance value should be 60 Ω Ω . Measure also the CAN cables'
resistance between the truck chassis and the 0 cables. There should
resistance between the truck chassis and the 0 cables. There should not be any significant
connection and the resistance value should be over 1 M M Ω.
connection and the resistance value should be over 1
If CAN bus is OK, the problem is in the controller and it must be replaced.
If CAN bus is OK, the problem is in the controller and it must be replaced.
Controller memory error
Controller memory error
EEPROM KO
EEPROM KO
This warning is caused by a hardware or
This warning is caused by a hardware or software defect of the non-volatile embedded memory
supporting the controller parameters. This alarm does not prevent truck operation,
supporting the controller parameters. This alarm does not prevent truck operation, but the truck
will work with the default
will work with the default values.
values.
In case of this warning, perform a CLEAR EEPROM operation. Switch the key off and on to
In case of this warning, perform a
check the result. If the alarm occurs permanently, replace the COMBIACX controller. If the
check the result. If the alarm occurs permanently, replace the COMBIACX controller. If the
alarm disappears, the previously stored parameter values will have been replaced by the
alarm disappears, the previously stored parameter values will have been replaced by the
default values.
default values.
Hardware high current protection failure
Hardware high current protection failure
LOGIC FAILURE #3
LOGIC FAILURE #3
This alarm is caused by a hardware problem in the logic card circuit for
This alarm is caused by a hardware problem
protection.
protection.
This fault is not related to external components, so when it appears, replace the
This fault is not
related to external components, so when it appears, replace the COMBIACX
controller.
controller.
Motor voltage feedback circuit damaged
Motor voltage feedback circuit damaged
LOGIC FAILURE #2
LOGIC FAILURE #2
This alarm is caused by a fault in the logic board
This alarm is caused by a fault
This fault is not related to external components, so when it appears, replace the
This fault is not
related to external components, so when it appears, replace the COMBIACX
controller.
controller.
https://www.forkliftpdfmanuals.com/
Document ID: 615023
Document ID: 615023
DESCRIPTION
DESCRIPTION
(Alarm)
(Alarm)
the logic between the master (drive) and slave
CAN bus malfunction, which blinds the master-slave
. Measure also the CAN cables'
Ω.
(Warning)
(Warning)
software defect of the non-volatile embedded memory
CLEAR EEPROM operation. Switch the key off and on to
(Alarm)
(Alarm)
in the logic card circuit for high current (overload)
(Alarm)
(Alarm)
in the logic board managing the phase's voltage feedback.
managing the phase's voltage feedback.
154 (244)
154 (244)
Service
Service Manual
Manual
Stored
Stored
slave
not be any significant
Stored
Stored
but the truck
Stored
Stored
high current (overload)
COMBIACX
Stored
Stored
COMBIACX
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