© Mitsubishi Forklift Trucks 2013. All
© Mitsubishi Forklift Trucks 2013. All
rights reserved.
rights reserved.
Revision: B
Revision: B
Document ID: 615023
Document ID: 615023
224 (244)
224 (244)
PBV20N2
PBV20N2
Service
Service Manual
Manual
CODE
CODE
TRUCKTOOL
TRUCKTOOL
AND
AND
DISPLAY
DISPLAY
DESCRIPTION
DESCRIPTION
19
19
Over or under voltage detected
Over or under voltage detected
LOGIC FAILURE #1
LOGIC FAILURE #1
(Alarm)
(Alarm)
Stored
Stored
This alarm is displayed when the controller detects an
This alarm is displayed when the controller detects an overvoltage or undervoltage condition.
overvoltage or undervoltage condition.
The overvoltage threshold is 45 V and the undervoltage threshold is 9 V in the 24 V controller.
The overvoltage threshold is 45 V and the undervoltage threshold is 9 V in the 24 V controller.
If the fault is displayed at startup or in the standby mode, it is due to an undervoltage condition.
If the fault is displayed at startup or in the standby mode, it is due to an undervoltage condition.
In such a case, the
In such a case, the check following:
check following:
•
•
The key input signal voltage drops below th
The key input signal voltage drops below the undervoltage threshold due external loads,
e undervoltage threshold due external loads,
such as DC/DC converters starting up or relays or contactors energizing or de-energizing.
such as DC/DC converters starting up or relays or contactors energizing or de-energizing.
•
•
If no voltage transient is detected on
If no voltage transient is detected on the supply line and the
the supply line and the alarm is displayed every time
alarm is displayed every time
the key is switched ON, the problem is in
the key is switched ON, the problem is in the steering controller.
the steering controller.
If the alarm is displayed during
If the alarm is displayed during motor steering, it is due to
motor steering, it is due to an undervoltage or an overvoltage
an undervoltage or an overvoltage
condition.
condition.
If the alarm happens during
If the alarm happens during traction acceleration or driving hydraulic functions, it is due
traction acceleration or driving hydraulic functions, it is due to an
to an
undervoltage condition. In such a case, check the battery charge level
undervoltage condition. In such a case, check the battery charge level and the power cable
and the power cable
connections.
connections.
32
32
Steering motor output voltage error
Steering motor output voltage error
VMN NOT OK
VMN NOT OK
(Alarm)
(Alarm)
Stored
Stored
This alarm occurs in the initial
This alarm occurs in the initial rest state after startup if the
rest state after startup if the outputs of the motor voltage
outputs of the motor voltage
amplifiers are not in the window from 2.2 V to 2.8 V. In such a case, replace the controller.
amplifiers are not in the window from 2.2 V to 2.8 V. In such a case, replace the controller.
48
48
Contactor does not close circuit
Contactor does not close circuit
MAIN CONT: OPEN
MAIN CONT: OPEN
(Warning)
(Warning)
This alarm occurs only when the parameter CAN BUS is set
This alarm occurs only when the parameter CAN BUS is set to PRESENT. In such a case, the
to PRESENT. In such a case, the
steering controller must receive event messages from the traction controller. See the traction
steering controller must receive event messages from the traction controller. See the traction
controller alarms in chapter
controller alarms in chapter 12
12 for the reason for keeping
for the reason for keeping the main contactor open.
the main contactor open.
61
61
Over temperature detected
Over temperature detected
HIGH TEMPERATURE
HIGH TEMPERATURE
(Alarm)
(Alarm)
Stored
Stored
This alarm occurs if the controller base plate
This alarm occurs if the controller base plate temperature exceeds 75°C. Improve the cooling
temperature exceeds 75°C. Improve the cooling
of the controller; otherwise it i
of the controller; otherwise it is necessary to replace the steering controller.
s necessary to replace the steering controller.
65
65
Steering motor over temperature
Steering motor over temperature
detected
detected
MOTOR TEMPERAT.
MOTOR TEMPERAT.
(Alarm)
(Alarm)
Stored
Stored
This alarm occurs when the analogue temperature sensor has exceeded the threshold of
This alarm occurs when the analogue temperature sensor has exceeded the threshold of
150°C.
150°C.
In such a case, check the thermal sensor inside the
In such a case, check the thermal sensor inside the motor and the wiring outside.
motor and the wiring outside. The
The
resistance of the sensor is 580
resistance of the sensor is 580
Ω at 20°C.
Ω at 20°C.
If the warning is
If the warning is present when the motor is cold and
present when the motor is cold and the thermal sensor is OK, improve the
the thermal sensor is OK, improve the
cooling of the motor. If
cooling of the motor. If that does not help, the
that does not help, the problem is in the COMBIACX controller.
problem is in the COMBIACX controller.
70
70
Output over current detected
Output over current detected
HIGH CURRENT
HIGH CURRENT
(Alarm)
(Alarm)
Stored
Stored
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