Section 2 - Technical Specification May 2008

TECHNICAL SPECIFICATION

3B6 Display

Load cell

SHLD
BLACK (-REF1)
BLUE (-IN1)
YELLOW (+OUT1)
GREEN (+OUT1)
RED (+IN1)
WHITE (+REF1)

Pin 18 + GND = 12V in work condition CONNECTOR X1 FOR CHECKS WITH TESTER
0V in overload condition
Electrical power to control unit (DLE)
Pin 7 + GND = feedback ok (12V) Pin 1: 12 V
Pin 2: GND
Pin 9 positive
Pin10 = boom retracted with forks in Overload signal (12V generated by the DLE)
horizontal position, without load: Pin 18: 12 V normal conditions, 0 Valarm overload
1,1÷1,4 mV Pin 7: re-reading overload signal
= boom extended with forks in
horizontal position, without load: Electrical power to load cell equal to 5 V
0,1÷0,4 mV Channel 1: Pin 16:positive Pin 17: negative
Pin 20 + GND = 12V with outriggers down
Pin 21 + GND = 12V with outriggers down Load cell signal in range 0,1 - 2,5 mV
Channel 1: Pin 10: positive Pin 9: negative

Machine without load on the forks, without

outriggers, with boom horizontal and not extended
Pin 9 and 10: 1,1 - 1,2 - 1,3 - 1,4 mV
Pin 1 Pin 8
Machine without load on the forks, without
outriggers, with boom horizontal and not extended
Pin 9 and 10: 0,1 - 0,2 - 0,3 - 0,4 mV

Outriggers down signal

Pin 20: 12 V
Pin 21: 12 V
Pin 16 Pin 23

24 GTH-4013 SX GTH-4017 SX Document 57.4403.4200

May 2008 Section 2 - Technical Specification

TECHNICAL SPECIFICATION

CALIBRATING THE DLE SYSTEM

1 2 3

•
NOTICE
During the calibration mode the limiter device
doesn’t block any manoeuvres so the calibration
can be done.
• With outriggers, calibrate the DLE system wi-
4 10 thout load and with load and outriggers fully at
ground.
• The calibration of the machine should be done
after a few minutes of use, in other words with
the machine "warm”.
9
5 6 7 8

- Enter the calibration mode:

Within 5 seconds from when the instrument is activated
(even if the display is still off) you should press the
keys on the front panel in the right sequence.
- Description of the controls: Belowe, the push buttons and their mean:

1 Calibration selection button

2 Display
3 Stability indicator with LED-bar Press to enter number 0
4 Green light - power OK Press to enter number1
5 Yellow light - calibration mode
6 Calibration confirmation button Press to confirm the sequence entered.
7 Not used
8 Red light - outrigger position The access code currently used is 1001. Therefore
9 Buzzer ON/OFF pushbutton you should enter the following sequence:
10 Red light - overload pre-alarm/alarm

The digit on display 2 shows the selected attachment. 1 0 0 1 CONFIRM

The user can choose among:

0: Generic If the sequence is correct the confirmation of the

instrument functioning in the calibration mode is
The system recognises the attachment fitted to the
machine automatically. given by the LED near lighting with a fixed
light.

The display shows a number that ISN’T blinking,

starting from “0”.

After calibrating, using different weights, check the cor-

respondece with the load charts (lenghts from the front
tyres to the center of the weight on the fork).

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Section 2 - Technical Specification May 2008

TECHNICAL SPECIFICATION

DISPLAY FUNCTION

0 The LED bar indicates the type of machine in use:

1 LED on -GTH 4013 SX - GTH 4017 SX
To select the machine to be calibrated press to increase the number of LED's lit or
press to reduce the number of LED's lit.
If you are doing the first calibration, press to reset the system and load the default
parameters of the selected machine.
If you are re-calibrating the instrument, directly jump to point 1.
Press to proceed to the next point (1).

1 Lower the outriggers to the ground, fully retract the boom holding it slightly above the
horizontal with respect to the ground. DON’T lift loads.
Press to confirm the EMPTY calibration of the machine. The audible alarm will sound
to confirm the command has been executed.
Press to proceed to the next point (2).

2 With outriggers down, place a load on the forks with a known weight, extend the boom
while holding it horizontal till reaching the overturning moment. The overturning distance
is from the front part of the wheels to the center of the load. (see the diagram inside the
cab).
Press to confirm the LOADED calibration of the machine and check that the alarm
triggers. The audible alarm will sound to confirm the command has been executed. Move
the boom fully in while holding the same in the horizontal position.
Press to proceed to the next point (3).

3 With outriggers down, place a load on the forks with a known weight, extend the boom
while holding it horizontal till reaching the overturning moment. The overturning distance
is from the front part of the wheels to the center of the load. (see the diagram inside the
cab).
Press some times to switch off the LED's of the load and press to switch on
them; at the end, all LED's are on from left to right, except the red last one.
The procedure is saved automatically
Press some times to arrive to the point (F).

F Press to exit calibration and to SAVE the changes made (the audible alarm sounds
and the LED’s come on to confirm that data have been saved).
The limiter is no longer in the calibration mode. The LED is not lit fixed any more.
You should turn the machine off and then on again to eliminate any alarm messages.

Starting to work.

26 GTH-4013 SX GTH-4017 SX Document 57.4403.4200

May 2008 Section 2 - Technical Specification

TECHNICAL SPECIFICATION

LOAD DIAGRAM LOAD DIAGRAM

GTH-4013 SX - ON OUTRIGGERS GTH-4013 SX - ON TYRES

71.6°
13 70° 13 68.8°

12 60° E 12 60° E

kg
11 D 11 D

00
50° 50°

20

kg
10 C 10 C

00
9 40°

g
25
9 40° B B

k
00
8 A

30

kg
8 A

12.80 m
.60 m

00
.60 m 7 30°

12.99 m
7 30°

35
6 kg
6 00
40
kg

5 20°
00

5 20°
1500 kg

2500 kg

3500 kg
2000 kg

3000 kg

40

1000 kg
1500 kg
250 kg

500 kg
4
3
10°
3
1250 kg

10° 2
2 1
0°
1 0
0°
0 -1 -4.18°
-1.43° 10 9 8 7 6 5 4 3 2 1 0
-1
10 9 8 7 6 5 4 3 2 1 0 9.08 m

9.02 m

LOAD DIAGRAM LOAD DIAGRAM

GTH-4017 SX - ON OUTRIGGERS GTH-4017 SX - ON TYRES

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Section 2 - Technical Specification May 2008

TECHNICAL SPECIFICATION

DIAGNOSTIC FUNCTION IN CALIBRATION MODE

FUNZIONE DISPLAY

A-B Display of the value read by the ADC converter-cell channel 1 (A).
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).
Position the machine for a calibration without load.
If the function A is setted, by a progressive boom extension the LEDs of the load bar
progressively have to go off.
If function A is activated and the LED 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:
LED3: lit when the load limiter disconnect key is turned.
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
stedily.
It is necessary to turn off and turn on the machine to eliminate all alarm messages (display
flashing).

ALARM CODES

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.

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May 2008 Section 2 - Technical Specification

TECHNICAL SPECIFICATION

Alarm code 4
Description Block Relay check error during work. Check through.re-reading of the block output
of the congruence with the current state of the limiter.
The alarm triggers even in the absence of malfunctions if the load limiter cutout
key is used.
Action The relay or the cable can be shorted; check.
The limiter’s outputs do not deactivate. Switch off and on the machine and run a complete
test of the outputs.
If the alarm persists, replace the DLE.

Alarm code 5-8

Description Block Relay check error at start. When the instrument is started, the re-reading of the
block output is always OFF except when the two outputs of the DLE are connected in
series.
5 - DLE output 0V or low voltage - 12V re-reading
8 - DLE output 12V - ow voltage or 0V re-reading
The alarm triggers even in the absence of malfunctions if the load limiter cutout
key is used when the instrument is started.
Action The relay or the cable can be shorted; check.
The limiter’s outputs do not deactivate. Switch off and on the machine and run a complete
test of the outputs.
If the alarm persists, replace the DLE.

Alarm code A
Description RAM data error. Checks that the parameters load in the RAM at start-up remain unal-
tered.
Action Switch off and on the limiter.

Alarm code B
Description Outriggers congruence.
Action Check that the signal of stabilised machine is congruent between the two inputs used
for reading during operation.
Display: until the system is turned off.
Operations: check wiring, power cable, DLE connector. If the alarm persists, change the
DLE (digital input reading malfunction).

Alarm code C
Description A.D.C. reading control error. If the analog/digital converter works fine after special
rereading of the DLE board.
Action Switch off and on the limiter.
If the alarm continues, replace DLE.

CHECK THE SYSTEM USING WINSCOPE

Connect the PC to the LMI display (limit moment indicator) using the serial port and the power cord (cod.
07.0736.0014), switch on the board and start the Winscope application.
Below, the list of the parameters and of the variables visualizable on the PC. In bold, the values interesting for the
GTH-4013 SX and GTH-4017 SX.

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Section 2 - Technical Specification May 2008

TECHNICAL SPECIFICATION

LIST OF THE DLE PARAMETERS

N° Winscope Name Description

00 C1cellaVuoto Value saved in analog channel 1 - calibration with unloaded
machine (best setting around 700).
01 C1cellaCarico Value saved in analog channel 1 - calibration with loaded machine
(best setting around 300).
02 C1cellaMin Min admissible value for analog channel 1 reading (if actual value
is below: alarm 2) (value set at 10 roughly).
03 C1cellaMax Max admissible value for analog channel 1 reading (if actual value
is above: alarm 2) (value set at 1010).
04 C2cellaVuoto Value save in analog channel 2 - calibration with unloaded machine
(best setting around 300).
05 C2cellaCarico Value save in analog channel 2 - calibration with loaded machine (best
setting around 700).
06 C2cellaMin Min admissible value for analog channel 2 reading (if actual value is
above: alarm 3)(value set at about10).
07 C2cellaMax Max admissible value for analog channel 2 reading (if actual value is
above: alarm 3) (value set at about 1010).
08 Filter Number of filter samples, with mobile mean. Load cell reading. Max
5.
09 paCellaUnica Sets to 1 automatically (during the machine selection) when the DLE
is used in single channel mode.
10 Celle_MaxDelta Max admissible delta between readings of analog channels 1 and 2,
expressed as a %, default 10 (current 20).
11 SpanForche Limiter intervention percentage in case of work with stabilised
machine and forks. Default: 100 (as per calibration).
12 SpanNavicella Limiter intervention percentage in case of work with stabilised machine
and platform (changed by the relevant procedure during calibration).
When the platform is selected, the limiter uses this % (default 110%
- load increase of 10%) instead of the SpanForche datum (current
value 125).
13 DeltaSpanGomme Limiter intervention percentage in case of work with non-stabilised
machine (changed by the relevant procedure during calibration).
% value that adds to the calibration with forks and outriggers
(SpanForche).
14 OffSet0 Command given to the digital potentiometer for cell 1 (value
from 0 to 255) to set the reading scale during calibration with
unloaded machine to a certain pre-set value (about 900 bit ADC
- C1cellaVuoto) (about 700).
15 OffSet1 Command given to the digital potentiometer for cell 2 (value from 0 to
255) to set the reading scale during calibration with unloaded machine
to a certain pre-set value (about 200 bit ADC - C2cellaVuoto) (about
300).
16 paIsteresiSblocco Load % for the reset of the movements once the block condition
has been rectified. (default 5% = 95%).
17 paRitardoSblocco Value expressed in tenths of second corresponding to the time
that must elapse between the block condition and the movement
reset (default 10 = 1 second).

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TECHNICAL SPECIFICATION

20 C1NavicellaVuoto Parameters 20, 21, 22 and 23 are usually equivalent to parameters

0, 1, 4 and 5. They shall be used for a new calibration of the platform
not depending on the proportional % calibration done with the forks.
These parameters only apply to the platform. Value saved in analog
channel 1 during calibration with empty machine.
21 C1NavicellaCarico Value saved in analog channel 1 during calibration with loaded
machine.
22 C2NavicellaVuoto Value saved in analog channel 2 during calibration with empty
machine.
23 C2NavicellaCarico Value saved in analog channel 2 during calibration with loaded
machine.
24 CurMacchina Machine selected on point “0” of the calibration.
28 VersioneSW Software version.
29 WPsum Parameters CHECKSUM used by the safety functions.

LIST OF THE DLE VARIABLES

N° Winscope Name Default Description

05 PCorder 0 You can save changes effected to the

parameters by setting this variable to “1”. The
variable will return to 0 once the value has
been saved.
10 C1swl Load percentage of cell 1 (0% = calibration
without load; 100% = calibration under load).
13 C1adcFiltro Current value of cell 1 (analog, converted into
bits 0 - 1023).

Document 57.4403.4200 GTH-4013 SX GTH-4017 SX 31