JLG LSS Scissors - Manual (Page 29)

SECTION 4 - OPERATION - (RS)
3124288 – JLG Lift – 4-1
SECTION 4. OPERATION - (RS)
4.1 CONNECTING THE JLG CONTROL
SYSTEM ANALYZER (RS)
1. Remove the compartment panel on the ground con-
trol side of the machine.
2. Disconnect the 4 pin connector which provides
power and information to the MDI Display.
3. Connect the cable supplied with the Analyzer to the
mating 4 pin connector that was just disconnected.
NOTE: The cable has a four-pin connector at each end of
the cable; The cable cannot be connected back-
wards.
4. Power-up the Control System by turning the key to
the Ground Control position and pull the Ground
emergency stop button.
4.2 HELP MENU & FAULT CODES (RS)
The Help Menu is a troubleshooting tool to communicate
detected System Faults to the technician. The following
table documents the Faults for the Load Sensing System.
To access the Help Menu, use the LEFT and RIGHT arrow
keys to select HELP: PRESS ENTER from the Top Level
Menu. Press the ENTER key to view the menu.
When accessing the Help Menu, the JLG Analyzer will dis-
play EVERYTHING OK if the platform is not overloaded
and no difficulties are detected. Otherwise, the JLG Ana-
lyzer will display OVERLOADED.
In the event of difficulty, the user can press ENTER again
to display Logged Help, which is a record of the last 16
Fault Messages. The following table lists each Help/
Logged Message, the Flash Code (for each Fault, the
module will flash the two-digit code on its LED) triggered
by the Fault, and a Description of the Situation (cause).
Table 4-1. LSS Fault Codes (RS ONLY)
HELP/LOGGED MESSAGE
FLASH
CODE
DESCRIPTION OF SITUATION
Everything OK LED ON The "Normal" Help Message
PLATFORM OVERLOADED 2-5 While the Load Sensing System is enabled, the Platform Load measured by the Load Sensing System is
excessive. Functions from Platform Control are prevented, and functions from Ground Control may be pre-
vented, depending on machine configuration (Markets other than Japan).
For the Japanese Market, only Lift Up is prevented and Drive (at creep speed) is allowed in the stowed posi-
tion.
CANBUS FAILURE - LSS
ANGLE SENSOR 6-6 The Control System Failed to receive messages from the Angle Sensor. Check wiring to the Angle Sensor.
LSS PRESSURE SENSOR -
DISAGREEMENT 8-2 Pressure Sensor 1 and Pressure Sensor 2 do not agree. The system shall assume the machine is overloaded
until the sensors agree.
Using the Analyzer LOAD submenu under DIAGNOSTICS check PRES1 and PRES2 readings. They must
agree within 75 PSI. With the safety prop engaged check to ensure that the appropriate voltage is being sup-
plied to both sensors and that the wiring and connections are intact. The voltage between pins A and B should
read +5V +/- 0.5V with the machine turned on. If the voltage supplied is correct, replace both transducers.
LSS ANGLE SENSOR - DIREC-
TION DISAGREEMENT 8-2 The Angle sensors change in reading does not agree with the direction of machine motion (lift up).This indi-
cates that the direction of movement of the platform does not agree with the angle sensors change in output.
Ensure that the angle sensor is installed properly and that the lever arm is not damaged.
LSS ANGLE SENSOR -
OUT OF RANGE HIGH 8-2 The Angle Sensor's reading when the machine is at maximum elevation does not fall within the high end
acceptable range. The Angle Sensors reading must be less than or equal to 245 counts at maximum eleva-
tion.
Ensure that the Angle Sensor is mounted properly.
LSS ANGLE SENSOR -
OUT OF RANGE LOW 8-2 The Angle Sensor's reading when the machine is stowed does not fall within the low end acceptable range.
The Angle Sensors reading must be greater than or equal to 5 counts with the platform stowed.
Ensure that the Angle Sensor is mounted properly.
LSS ANGLE SENSOR HAS
NOT BEEN CALIBRATED 8-2 The Angle Sensor has never been calibrated and the control system assumes that the platform is overloaded.
Calibrate the Angle Sensor using the CALIBRATION: ANGLE submenu to clear the message.