RCI-1502 HRT Tele Boom Manual
Problems That Do Not Produce Error Codes:
The load does not vary when I lift a weight.
The load cable and/or the load sensor is/are faulty. Check the load
cable for faults. If cable is good, check the resistance values of the load
cell. This, however, does not give the complete story. E ven if the
resistances are correct, there is still a chance that a fault on the sensor
exists. Replace the load cell.
The load display is very erratic and displays massive changes in value.
Check the view UNCALIBRATED T RANSDUCER INPUT for that
channel. If the values are flickering by 2-3 counts while the display is
changing by say a number of t onnes, then the cause is most probably
calibration. One common cause of this is if different loa d values were
entered for the high and low calibration without the actual
load being
altered (or of course there was an error in a load
channel while you
were calibrating). In other words you forgo t to lift the heavy load! (It
happens often) In this situation the display is confused because the
calibration data is telling it that the signal it is seeing represents both the
low load value and the high load
value simultaneously. Correct the
calibration.
This can also o ccur if only part of the calibration procedure has been
completed. You should ex pect strange results if
you have not
completed the calibration of that sensor.
When the system starts in the morning the displays are erratic, but settle
during the day.
This is a common sign of moisture ingress into either the display, the
connectors, the sensors or the cabl e. These should be checked, dried
and sealed.
The display does not start.
You should check the power supply. The RCI-1502 has a voltage range
of 10 – 4 0 vdc. If the supply is within range, open the Switchbox and
check the fuses.
The unit is on alarm, but no error code on display.
•
Check for Two blocking condition.
•
If no Two Blocking co ndition exist but the ATB LED on display is
ON, check the “earth lead” from the display for proper grounding to
crane chassis.
•
If “earth lead” is OK, check the ATB switch and cable for faults.
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Страница 59: ...Appendix 8 1 Data Logging on RCI Systems ...
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