Troubleshooting; Gp102 - Ezcal Help Messages - Mec 1532ES Service And Parts Manual

TROUBLESHOOTING

GP102 - EZcal Help Messages

When the EZcal hand-held device is connected to the GP102 control module, the first menu
available is "HELP" - just press the ENTER button to see a message describing the current status
of the GP102; this will provide the best information when troubleshooting the load sense system.
When an EZcal is unavailable, an LED on the GP102 flashes to provide limited diagnostics. Refer
to GP102 LED Flash Codes in this section.
The following messages may be displayed on the Ezcal display.
EVERYTHING OK
The GP102 detects no problems.
If problems are being experienced with the system, use the DIAGNOSTICS menus to check for faulty
sensors and/or switches. LED on steady.
ARMGUARD ACTIVE!
The GP102 has stopped descent at the Armguard height, and is delaying for 5 seconds to "give the
operator the opportunity to see whether persons ... could be injured" (per EN 280 5.4.4). Vehicle
movement will continue to be stopped after the delay until all functions are released. LED flash code 4.
B+ SUPPLY TOO LOW
The GP102 is designed for use on 12V and 24V battery powered vehicles; it cannot operate with a
supply below about 9V. The "BATTERY" voltage can be checked in the "SENSORS" menu (available in
the "DIAGNOSTICS" menu). LED flash code 7.
DRIVE/LIFT SELECT INPUTS FAULTY!
Neither the drive select (P2-7) nor the lift select (P2-8) input is active, or both are active - the GP102
cannot determine the vehicle use.
All vehicle operation will be prevented until the problem is corrected. LED flash code 2.
ELEVATION SWITCH SHIFTED?
The GP102 uses the elevation switch in combination with the height sensor to ensure correct
functionality of both; any of the following faults may be detected:
• The elevation switch should change state near the point at which it did during load calibration All vehicle
operation will be prevented until the problem is corrected. LED flash code 4.
ELEVATION SWITCH STUCK?
The GP102 uses the elevation switch in combination with the height sensor to ensure correct
functionality of both; any of the following faults may be detected:
• When the platform is elevated, the measured height should be above that stored during load calibration
• When the platform is not elevated, the measured height should be below that stored during load calibration
All vehicle operation will be prevented until the problem is corrected. LED flash code 4.
February 2008
Page 3-4
"1532ES / 1932ES" Service & Parts Manual - CE Specifications