Section 2 - Technical Specification November 2008
TECHNICAL SPECIFICATION
Document 57.0009.0427
GTH-4017EX GTH-4514EX GTH-4013EX
30
FUNCTION DISPLAY
A-B Display of the value read by the ADC converter-cell channel 1 (A) and cell channel 2 (B).
This diagnosis function allows you to check proper reading of the load cell.
As you move the boom, you can see the LEDs of the load bar progressively go on/off
(valid if calibration has already been done).
Lay the machine for a calibration without load.
If the function A is setted, the LEDs of the load bar progressively have to go off, moving
out the boom; while in the function B the same LEDs progressively have to go on.
If it is completely ON or OFF, there could be a problem with the connection or in the
cell thereof; If it is partly lit but there is no movement in the boom, make sure the cell is
fixed.
C Digital Inputs display: this function allows you to see if the following signals are properly
delivered to the DLE device according to the lighted LEDs of the load bar:
LED1 and LED2: ON when the machine is stabilized.
LED3: the 4013 will be active if the nacelle is not installed.
LED4: ON if the interlock relay is active (machine safe without alarms).
D Software version existing in the DLE unit: this function allows you to see the software
version included in the DLE unit according to the lighted LEDs of the load bar:
No LED: software 0
One LED: software 1 ……
Four LED: software 4
E No function.
F Press to escape from the calibration and SAVE all changes (the buzzer and the LED
activate to confirm storage).
The limiter has now escaped from the calibration mode. The LED is no longer ON
steadily.
It is necessary to turn off and turn on the machine to eliminate all alarm messages (display
flashing).
DIAGNOSTIC FUNCTION IN CALIBRATION MODE
Alarm code 1
Description E2PROM Error. Internal comparison of data read from E2PROM failed.
Action Switch off and switch on the machine. If the alarm continues, recalibrate the machine,
otherwise replace DLE
Alarm code 2
Description CELL 1 reading out of range.
Action Check if the load cell is fixed well.
Check the connection between DLE and sensor for short circuits or signal interruptions
due to a broken cable.
Check the DLE connector for signs of oxidation, short circuits or absence of electrical
contact in some pins.
If the alarm persists, check if the cell is intact.
ALARM CODES
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