Appendix
39 | P a g e
Appendix II
Explanation of Errors on a RoboCrib
Calibration Errors
Not calibrated
Since start up
Check pot voltage for wind
Count and recalibrate.
“Recalibrating
Please Wait”
Notes: This error will occur any time the machine is started or on a power loss to the controller. On normal
operation, the Touch screen will display an error noted above and check the pot voltages. The machine will
make a series of “CAL” or “TST” commands until the system detects the machine in an unwound condition.
This can be confirmed by the wind indictor lights on the main controller. Both the LSP and MP lights should be
in the middle position “Green”.
Status OK.
All systems Go
None system ready for fetch commands.
Notes: This is the normal operating condition.
Check wind count and attempt to recalibrate 3
times, if unsuccessful system will lock touch
screen and display error.
“Encoder B not working
on platter X See
supervisor”
Notes: Encoder B errors can be caused by a number of things. The most common causes are follows:
1. The drive chain on affected platter is too tight causing an oscillation on start up of the motor. The
paddle wheel on the back shaft of the motor moves oscillates in both directions at a slow rate of speed
through the optical reader causing the encoders to give a false reading.
2. The drive chain on affected platter is too loose causing an oscillation on deceleration to called position.
The paddle wheel moves or oscillates in both directions at a slow rate of speed through the optical reader
and gives a false reading.
3. A hard Jam causes the machine to stop suddenly causing oscillation in the paddle wheel.
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