PBV20N2 PBV20N2 Service Service ManualManual
13
13 Alarm Alarm codescodes
This chapter explains the meaning of the various alarms that the different controllersThis chapter explains the meaning of the various alarms that the different controllers
may produce. Refer to the chaptermay produce. Refer to the chapter1111 for information on the for information on the TruckTool diagnosticsTruckTool diagnostics
application.application.
NOTE: If the truck NOTE: If the truck is equipped with the electrical steering option, the alarm codes ofis equipped with the electrical steering option, the alarm codes of
the steering controller are available in sectionthe steering controller are available in section15.11.10.15.11.10.
13.113.1
Traction controllerTraction controller
NOTE: Before you start to troubleshoot the truck, make sure that all NOTE: Before you start to troubleshoot the truck, make sure that all the powerthe power
supplies, fuses and connections are in supplies, fuses and connections are in order. Low voltage in the order. Low voltage in the traction controllertraction controller
can cause different sorts of alarms.can cause different sorts of alarms.
The fault diagnostic system of the traction controller is The fault diagnostic system of the traction controller is divided into two main groups:divided into two main groups:
•
•
AlarmsAlarms
These are faults, which open the power bridge and, when possible, also the mainThese are faults, which open the power bridge and, when possible, also the main
contactor is opened and the magnetic brake activated. Failures in the motor, thecontactor is opened and the magnetic brake activated. Failures in the motor, the
controller or the safety controller or the safety functions cause alarms.functions cause alarms.
•• WarningWarning
These are faults, which do not stop These are faults, which do not stop the truck or stop the the truck or stop the truck by using regenerationtruck by using regeneration
braking. The controller is working well, but it has detected some conditions thatbraking. The controller is working well, but it has detected some conditions that
reduce the performance or stop the truck without opening the power devices.reduce the performance or stop the truck without opening the power devices.
Incorrect operation sequences or conditions requiring performance reductions (forIncorrect operation sequences or conditions requiring performance reductions (for
example, high temperatures) cause warnings.example, high temperatures) cause warnings.
The text “Stored” means that the The text “Stored” means that the alarm or warning is stored in alarm or warning is stored in the traction controllerthe traction controller
logbook.logbook.
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