Technical information

562600-000, Issue1.0, March 2014
41 of 57
9.3 On Screen ALO Component Error Messages
PMERail Max and Ultra continuously monitors the presence and condition of the ALO
slew components. If any sensor, input, output, or other component fails, an error
message will appear along the bottom of the display. In the event of a failure, ALL motion
control relays will be operated, the cab mounted blue lamp will indicate that the RCI is
NOT active, the display red LED will flash and the internal and external alarms will sound.
ALO CRC failure
EEprom config CRC failure
ALO CAN failure
Null Safety Controller pointer
ALO pilot failure
Failed to initialise CAN
ALO invalid S/C
Failed to initiate back drive controller class
ALO backdrive failure
Failed to initiate pilot/brake controller class
ALO slew CANopen failure
No slew CAN messages
ALO pitch/roll not detected
No dual axis CAN messages
ALO backdrive CANopen failure
No back drive controller CAN messages
ALO pilot CANopen failure
No pilot controller CAN messages
ALO left feedback error
Left controller feedback error > 10%
ALO right feedback failure
Right controller feedback error > 10%
ALO pilot feedback failure
Pilot controller feedback error > 10%
ALO brake feedback failure
Both joysticks active at once
ALO illegal joysticks
Left joystick input stuck low
ALO left joystick inactive error
Right joystick input stuck low
ALO right joystick inactive error
Left joystick input stuck high
ALO left joystick active error
Right joystick input stuck high
ALO right joystick active error
Left pressure switch input stuck low
ALO left pressure inactive error
Right pressure switch input stuck low
ALO right pressure inactive error
Left pressure switch input stuck high
ALO left pressure active error
Right pressure switch input stuck high
ALO right pressure active error
Failed to initialise axiomatic controller(s)
ALO controller failure
No/missing CAN messages from Safety Controller
ALO S/C not reporting
Brake controller feedback error > 10%
ALO slew DR
Slew dual redundant error