Mitsubishi PBV20N2 Service Manual page 225

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

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