“4069RT” Service and Parts Manual March 2014
Page 4-13
TROUBLESHOOTING -- EZ -CAL RETRIEVE MODE AND HELP MESSAGES
E
Z
-C
AL
R
ETRIEVE
M
ODE
A
ND
H
ELP
M
ESSAGES
NOTE: It is important to understand that an error message will only be available if the red Diagnostic
LED is flashing. If the machine is not operating properly and the red Diagnostic LED is not
flashing, the trouble may lie with something not monitored by the electronic control system, i.e. a
switch, hydraulic valve or wiring damage.
There are two different menus that you can access for message retrieval; MODE and
HELP.
MODE M
ENU
Allows the technician to see the current state of the controller interlocks with a short
description. Go to, DIAGNOSTICS/SYSTEM/MODE (EZ-Cal Flow Chart 2, ID# 2a1).
Pressing ENTER a second time will provide additional information with certain
messages.
HELP M
ENU
Provides various HELP messages to identify failure modes.
Some error messages may also be identified by counting the number of times the red
LED flashes on the controller so that even without access to an EZ-Cal, some simple
diagnostics are possible. However, the EZ-Cal provides a much higher level of
diagnostic information. Do not rely on the LED alone.
MODE M
ESSAGE
• Connect the EZ-Cal (see illustration).
The display will read, “HELP: PRESS ENTER”.
• Press the Right Arrow once, then press ENTER twice.
• Refer to the following list of messages to better understand the nature of the message or fault.
• If the GP400 does not register a fault, the display will read EVERYTHING OK.
L
OGGED
M
ESSAGE
Pressing ENTER twice will provide the current message, followed by a log of previous
operations and/or errors that occurred immediately prior, starting with most recent.
Press the Right and Left Arrows to view all logged messages.
Other helpful menus available include DIAGNOSTICS which allows the technician to
monitor specific plug input/output information. Refer to EZ-Cal Flow Chart 2 –
Diagnostics.
MODE M
ESSAGES
The purpose of MODE is to indicate, in real time, the current state of the controller with a
short description.
INITIALIZING
• The system is preparing to operate, immediately after power-on.
SHUTDOWN!
• The system cannot operate – for example both the PLATFORM & GROUND inputs are active
together.
CHECK CANBUS
• The system cannot operate – CANBUS communications is not successful (for example wire
damage to the platform)
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