GMG 3394-RT, Руководство по обслуживанию, Страница: 26 / 31

Section
3394RT---6094RT Scissor Lifts - Service Pack
Page 2 1
5 - Troubleshooting
GP400 LED FLASH CODES
(
continued)
LED flash code 3/x
There is a problem with the line contactor or valve wiring; disconnect connectors
P4/P5/P6 to identify the problem valve wiring
LED flash code 4/x
There is a problem with battery supply
Check battery supply to EMS inputs P7-1, P7-2 and P7-4; check battery negative
to P8-13/14/15
If a connected P600 module exists, check battery supply to that module as well
LED flash code 6/x
There is a problem with load measurement – the height and/or pressure sensor
measurements are out of range, or the elevation switch disagrees with the height
sensor
Check that the output from height and pressure sensors (connected to P8) is in
range (between 0.5V and 4.5V)
LED flash code 7/x
There is a problem with the power wiring to a connected P600 module – the
voltage on the B+ stud is too low
Check for a short-circuit to the B+ stud
LED flash code 10/x
There is a problem with a connected SEM600 module
LED flashing fast and continuously
This indicates that “factory override” is active – this special controller mode is
intended for use during machine manufacture only
IMPORTANT: Never use a machine that is still in “factory override” – all
safety and shutdown features are disabled!