SECTION 2 - OPERATION - (LE, MRT, RTS)
3124288
– JLG Lift –
2-1
SECTION 2. OPERATION - (LE, MRT, RTS)
2.1 CONNECTING THE JLG CONTROL
SYSTEM ANALYZER (LE, MRT & RTS)
THE LOAD SENSING SYSTEM MODULE HAS AN INDEPENDENT
ANALYZER CONNECTION LOCATED NEAR THE MODULE. DO
NOT CONFUSE IT WITH THE ANALYZER CONNECTION FROM
THE HOST CONTROL SYSTEM.
1.
Connect the cable supplied with the Analyzer to the
LSS Module located beneath the platform and con-
nect 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.
2.2 HELP MENU & FAULT CODES (LE, MRT
& RTS)
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 2-1. LSS Fault Codes (LE, MRT and RTS)
Help/Logged
Message
Flash
Code
Description of Situation
Everything OK
LED ON The "Normal" Help Message
<MIN CAL
Calibration attempt Unsuccessful, Empty Platform appears to weigh too little. Improper Model Selection (Machine
Setup) may cause the LSS Module to expect the wrong Empty Platform Weight. This also may be caused by a damaged
sensor or associated wiring. Finally, this condition may occur if mechanical interference between the platform and sup-
port structure exists (all weight must transfer through sensors).
>MAX CAL
Calibration attempt Unsuccessful, Empty Platform appears to weigh too much. This situation has the same root causes
as the "<MIN CAL" Fault Message.
BATT TOO LOW
4/1
Incoming Supply Voltage <9.0 Vdc. The control system’s battery voltage is too low due to excessive electrical load or
discharge.
BATT 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.
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 sensor
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 sensor
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 sensor
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 sensor
or its wiring.
WATCHDOG RST
9/1
Microprocessor’s Watchdog Timer Triggered. This is an indication that the LSS Module has been exposed to excessive
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.
NO CAL
9/3
Calibration has not been successfully completed. A new LSS Module will display this message until properly cali-
brated.
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