"2047ES / 2647ES / 3247ES" Service & Parts Manual - CE Specifications
March 2008
Page 3-7
GP102 LED Flash Codes
The
GP102
has a built-in LED to provide simple diagnostics when no
EZcal
is available. Please note
that the use of an
EZcal
provides significantly better diagnostics through the HELP messages. An
EZcal
is also necessary to calibrate a
GP102
.
LED on steady
This indicates no fault with the
GP102
LED off always
This indicates no power to the
GP102
, or idle timeout (if enabled - activate a lift or drive function to
cancel the idle timeout)
LED flash code 1
This indicates the
GP102
has not been properly calibrated.
LED flash code 2
This indicates a fault with the switch inputs to the
GP102
. Check wiring to connector P2.
LED flash code 3
This indicates a fault with the shutdown outputs of the
GP102
- a short to the supply has been detected.
Check wiring from pins P3-4.
LED flash code 4
This indicates that armguard is active, or that there is a fault with the elevation switch - the
GP102
verifies correct opening and closing of the elevation switch against the height sensor. Checking the
elevation switch on P2-10. If the height sensor has been adjusted or replaced, repeat the CALIBRATE
HEIGHT procedure.
LED flash code 5
This indicates a fault with the shutdown outputs of the
GP102
- a short to 0V (ground) has been
detected. Check wiring from pins P3-4.
LED flash code 6
This indicates a fault with the load measurement - check the pressure sensor and wiring from it to
connector P4.
LED flash code 7
This indicates a fault with the supply to the
GP102
- check battery supply at least 8V on pin P2-12; also
check that there is not a short to 0V (ground) on pin P4-1.
LED flash code 8
This is not a fault - it indicates the
GP102
has prevented a function; functions can be prevented if the
platform is overloaded, if the machine is tilted too far, or if the platform is too high.
LED flash code 9
This indicates a fault with the height measurement - check the height sensor and wiring from it to
connector P4.
LED flash code 10
This indicates the
GP102
is carrying out start-up tests.
LED flash code 15
This indicates the
GP102
is in “FACTORY OVERRIDE” and overload functions are disabled - this aids
manufacture by allowing vehicle movement before the machine is built sufficiently to be calibrated. 15
flash will be present whenever a
new circuit board is installed previous to calibration.