Load Sense/Dual Load Zone Module Error - Skyjack SJ82 T Service Manual

Load Sensing System - CE

4.4-3 Load Sense/Dual Load Zone Module Error

When a fault is detected, the module outputs will have limited operation depending on the fault type:
For ANY and all faults:
Load zone border light is turned on
▪
Low capacity lamp and high capacity lamp will flash alternately
▪
Overload lamp will flash
▪
The Red diagnostic LED on The module will be illuminated (no flashing)
▪
If a short circuit is detected on wire 120, 82, or 119:
The output that is shorted will be disabled (open, high Z to ground)
▪
120 shorted: high capacity light on solid, border light on solid, overload light flashes
▪
82 shorted: capacity lights flash alternately, border light on solid, overload light off
▪
119 shorted: capacity lights flash alternately, border light off, overload light flashes
▪
If a short circuit is detected on any safety contact (wire 162B, 13A, or 39A):
All safety contacts will be disabled (opened)
▪
Stowed Position: all functions are available
▪
Off limits(boom extended and/or boom above 10°): No functions and overload alarm pulses with overload
▪
light.
If the measured load falls below the tare (no load/empty platform) calibration point by 2.0mA, for 1.5
seconds:
13A is disabled (open) – Down Function is disabled. Will self-clear when the measured load returns to
▪
normal.
Module Amber and Green diagnostic LEDs flash together
▪
If a discrepancy is detected between the load cell analog inputs (delta > 2mA for 2.0 seconds):
Wire 162B, 13A, and 39A are disabled (opened) - – Stowed Position: all functions are available: lower and
▪
retract functions may not be operable. Off limits: (boom extended and/or boom above 10⁰): No functions
and overload alarm pulses with overload light.
Module Amber and Green diagnostic LEDs on the module flash alternately
▪
To reset the module hold the actuator button down for 5 seconds, or shut the MEWP platform power off
using the ignition switch or e-stop..
SJ82 T, SJ86 T
Section 4 – Troubleshooting Information
229040ABA
159