SECTION 3 - OPERATION - (ES, RT)
3124288
– JLG Lift –
3-1
SECTION 3. OPERATION - (ES, RT)
3.1 CONNECTING THE JLG CONTROL
SYSTEM ANALYZER (ES & RT)
1.
Connect the cable supplied with the Analyzer to the
host control system located at the ground control-
station on both the ES and the RT models. There is
also an alternate connection on the under side of the
platform control station on the RT. Connect the
remaining end of the cable to the analyzer.
NOTE:
The cable has a four-pin connector at each end of
the cable; The cable cannot be connected back-
wards.
2.
Power-up the Control System by turning the key to
the Platform or Ground position and pulling both
emergency stop buttons.
3.2 HELP MENU & FAULT CODES (ES & RT)
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 3-1. LSS Fault Codes (LE, MRT and RTS)
Help/Logged Message
Flash
Code
Description of Situation
PLATFORM OVER-
LOADED
2-5
The platform load measured at the Load Sensing System is excessive. Functions from the platform control are pre-
vented, and functions from the ground control may be prevented, depending on machine.
BATTERY TOO HIGH
4-4
Incoming Supply Voltage >34.0 Vdc. The control system’s battery voltage is too high. This may be due to over-charg-
ing or improper charger operation.
BATT TOO LOW
4-4
Incoming Supply Voltage <9.0 Vdc. The control system’s battery voltage is too low due to excessive electrical load or
discharge. This may compromise ability to predict weight. Recharge batteries or check for damaged batteries.
CANBUS FAILURE: LSS
MODULE
6-6
The control system failed to receive messages from the LSS Module. Check wiring at the LSS Module and along scis-
sor arms leading up to platform.
CELL #1 ERROR
8-1
Cell #1’s Bridge <2V, >3V, or could not read Cell #1’s Internal Memory. This situation indicates damage to the sen-
sor or its wiring.
CELL #2 ERROR
8-2
Cell #2’s Bridge <2V, >3V, or could not read Cell #2’s Internal Memory. This situation indicates damage to the sen-
sor or its wiring.
CELL #3 ERROR
8-3
Cell #3’s Bridge <2V, >3V, or could not read Cell #3’s Internal Memory. This situation indicates damage to the sen-
sor or its wiring.
CELL #4 ERROR
8-4
Cell #4’s Bridge <2V, >3V, or could not read Cell #4’s Internal Memory. This situation indicates damage to the sen-
sor or its wiring.
WATCHDOG RST
9-1
Microprocessor’s Watchdog Timer Triggered. This is an indication that the LSS Module has been exposed to exces-
sive electrical noise, or has experienced a hardware difficulty.
EEPROM ERROR
9-2
Memory used to retain Personality/Machine Setup/Calibration has been corrupted and must be reset by verifying all
entries and re-calibrating. After resolution, re-cycle power to clear difficulty.
LSS NOT CALIBRATED
9-3
Calibration has not been successfully completed. A new LSS Module will display this message until properly cali-
brated.
LSS INTERNAL ERROR
- PIN EXCITATION
9-9
Pin excitation <4.25 V. The sensors may be excessively loading the excitation supply, or the LSS Module may have
hardware difficulty.
LSS INTERNAL ERROR
- DRDY MISSING FROM
A/D
9-9
DRDY Interrupt from LSS Module’s A/D converter missing. This may indicate an LSS Module hardware difficulty.
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